Also write down any new instructions your provider gives you. A bilaterally symmetrical ulcerative process noted by this 41-year-old female, present for several months. The data suggests lip cancer has the highest incidence rate while gingival cancer has the lowest rate overall. 6 In addition, some risk factors that are specific to the alveolar ridge are a diet with low vegetable intake, poor oral hygiene, and periodontal disease which may contribute to chronic . Inner cheek cancer (also called buccal mucosa cancer) is a type of head and neck cancer that begins when the cells that make up the inner cheek grow out of control and form lesions or tumors. Joseph K. Salama, in Encyclopedia of Cancer (Third Edition), 2019. In addition, we wanted to elucidate whether the HPV . Meet Memorial Sloan Kettering’s renowned team of doctors specializing in mouth cancers. For some people, radiation may be the only treatment needed. Bring someone with you to help you ask questions and remember what your provider tells you. Clinically, these diseases may sometimes resemble each other. Found inside â Page 6720Postgrad Med 49 : 125-30 , Jan 71 Combined therapy in buccal mucosal cancers . Krishnamurthi S , et al . Radiology 99 : 409-15 , May 71 ( Essential ... Mouth cancer is one of several types of cancers grouped in a category called head and neck cancers. Table 1 provides age-standardised incidence and mortality rates for oral cancer based on the location in the mouth. There are two . If the cancer is more advanced, radiation, chemotherapy, or both may be used to shrink the tumor before or after surgery to reduce the risk of the cancer coming back. The patient is a non-smoker and uses no alcohol. Figure 6. Oral leukoplakia (OL) OL is a white (or white-red) patch or plaque of the oral mucosa that cannot be characterised clinically or pathologically as any other condition such as cheek biting, candidosis, lichen planus and materia alba. MSK’s experts are among the most experienced in the nation at treating cancers that arise in the mouth. Rev. ed. of: Head and neck surgery and oncology. 3rd ed. 2003. Chemotherapy medications are taken by mouth or given through a vein for several months. As you review these images and their descriptions, you will be presented with what the referring doctor originally diagnosed and treated the patient for. Uneventful re. Found insideThis book gives a comprehensive overview of recent trends in infectious diseases, as well as general concepts of infections, immunopathology, diagnosis, treatment, epidemiology and etiology to current clinical recommendations in management ... Squamous cell carcinoma of the buccal mucosa: one institution's experience with 119 previously untreated patients. The pigmented macules on the lips may fade with time, but the intraoral pigmentation persists for life. On a routine examination of a 52-year-old female a well defined red velvety lesion of the lower-left ventral tongue was observed. The usual location of the Verrucous carcinoma is oral cavity and may involve multiple organs including throat, nasal cavity buccal mucosa, and larynx. Picture of Peutz-Jeghers Syndrome. Mouth cancer occurs in the lips, alveolar arches of the maxillae and mandible, the gums, tongue, hard palate, the floor of the mouth, buccal mucosa, and retromolar space. In this eighty-ninth volume, the carcinogenic risks associated with the use of smokeless tobacco, including chewing tobacco and snuff, are considered in a first monograph. The second monograph reviews some tobacco-specific nitrosamines. Therefore, at the commencing of the condition may lead to organ-specific symptoms including a sore throat, hoarseness, and dysphagia. Buccal mucosa is another name for the inside lining of the cheeks. The goals of the treatment of inner cheek cancer are to: The extent and depth of the cancer guides your plan of care. Symptoms & Signs. Note any change in pigmentation, color, texture, mobility and other abnormalities of the mucosa, making Find buccal mucosa stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Medical oncologists administer chemotherapy if cancer has spread to lymph nodes or other organs. The oral cavity includes the lips, the inside lining of the lips and cheeks (buccal mucosa), the teeth, the gums, the front two-thirds of the tongue, the floor of the mouth below the tongue, the bony roof of the mouth (hard palate) and the area behind the wisdom teeth (called the retromolar trigone). The disease is treated with surgery, chemotherapy or both. About oral cancer. The volume is directed to advanced students and researchers in oral biology, as well as those in allied areas of investigation, such as dermatology, gynecology, internal medicine and pathology. Possible reasons include inadequate treatment and an intrinsically aggressive nature. This disease also leads to fibro-elastic changes in the lamina propria along with . However, leukoplakia is not limited as an oral disorder alone, as it may also appear in the genital area of the female. Figure 6. Treatment often involves surgery performed by a head and neck cancer surgeon. Ask if your condition can be treated in other ways. Development of the oral glands parallels those of the skin, reaching maximum numbers at puberty. OL is pre-malignant and associated with squamous cell carcinoma (SCC) Found insideThe 1992 revision of the fourth edition agreed upon by all national TNM committees, includes: changesmade by FIGO in 1989/1990; an updated classification of urological tumours; and new classifications of small intestine carcinomaand pleural ... Blood-based, firm, asymptomatic nodule of long duration was noted along the right buccal mucosa during routine examination. It is important to note that oral cancers can be difficult to diagnose. Description: Anatomy of the oral cavity; drawing shows the lip, hard palate, soft palate, retromolar trigone, front two-thirds of the tongue, gingiva, buccal mucosa, and floor of mouth. SCC of the buccal mucosa is an aggressive cancer with a high locoregional failure rate even in patients with T1-2N0 disease. Common sites are the buccal mucosa, lateral border of the tongue, floor of the mouth, and hard palate. The oral cavity includes the lips, hard palate (the bony front portion of the roof of the mouth), soft palate (the muscular back portion of the roof of the mouth), retromolar trigone (the area behind the wisdom teeth), front two-thirds of the tongue, gingiva (gums), buccal mucosa (the inner lining of the lips and cheeks), and floor of the mouth under the tongue. Learn about our approach to care. Therefore, before such therapy can be fully and routinely implemented, results of the novel treatment and its rationale have to be carefully evaluated. In preoperative treatment, other features will likely gain impor tance. In the AJCC staging system, the inner mucosa of the lips is included with the buccal mucosa in the oral cavity scheme. cancer can be diagnosed only with a biopsy, when a sample of tissue in the area is removed and exam-ined under a microscope. This book is a printed edition of the Special Issue " Chemically-Induced DNA Damage, Mutagenesis, and Cancer" that was published in IJMS The lesion of the Verrucous carcinoma can . MUCOSA (C06.0) includes all the mucous membrane lining the inner surface of the cheek. Grafts may be taken from the abdomen or leg and used to repair small portions of the mucosa, which is the lining of the mouth. This tissue is designed to provide protection for the body from infection and debris, and it is capable of producing secretions such as mucus, in addition to absorbing materials introduced into the mouth. On exam, a granular to warty mass was noted on the gingiva extending into the labial fold. Buccal cancers start out as a lump or ulcer inside the cheek that doesn't go away after a few weeks. There was an error trying to send your message. A 31 year old female noticed a flat grey/black asymptomatic alteration in the anterior floor of her mouth, of unknown duration. It starts as a white plaque of thickened skin (hyperkeratosis) that eventually spreads and forms rough, wart-like (verrucous) lesions that may look . These risk factors can include: Tobacco use . Peutz-Jeghers syndrome is a cancer genetic disorder characterized by freckle -like spots on the lips . The buccal mucosa is the lining of the cheeks and the back of the lips, inside the mouth where they touch the teeth. Some contain a brief patient history which may add insight to the actual diagnosis of the disease. Carcinoma buccal mucosa medanta. Note any change in pigmentation,color, texture and other abnormalities of the mucosa. Click on Pictures to Enlarge The picture on the right shows a large white lesion which mimics a T2 squamous cell carcinoma on the upper gingival buccal sulcus and hard palate. At the visit, write down the name of a new diagnosis, and any new medicines, treatments, or tests. The most common site for carcinoma in situ of the oral cavity is the inside of the cheeks (the buccal mucosa) and then in decreasing order of frequency: Gums (alveolar mucosa) Lower lip; The floor of mouth (under the tongue) Sides or undersurface of the tongue (lateral or ventral tongue) Soft palate. Moreover, it may be hyperkeratotic in nature, meaning there is hypertrophy or . some (e.g., leukoplakia) may represent neoplasia or cancer. This book will be an ideal reference for both specialists and trainees in gastroenterology. Always follow your healthcare professional's instructions. 59641005. Know why a test or procedure is recommended and what the results could mean. The patient has a white lesion with irregular margins on the left ventral tongue. However, your dentist can identify suspicious-looking areas or growths that may need further evaluation. gnp_request = {"slug" : "the-oral-cancer-foundation-1", "color-set" : 1 , "campaign" : 59}; © 2021 – The Oral Cancer Foundation – Head & Neck Cancer IRS 501(c)3 Charity – 3419 Via Lido #205, Newport Beach, CA 92663 | Disclaimer / Privacy Policy, Registered Dental Hygienist Advisory Board, The role of dental and medical professionals. some (e.g., leukoplakia) may represent neoplasia or cancer. Advanced cancer cases may require a combination of surgery and chemotherapy. 64-year-old male with a long history of cigarette smoking presents with an asymmetrical nodular mass in the retromolar region. Imaging studies to determine if the tumor has invaded nearby tissues or other organs of the body. Leukoplakia is a condition wherein white or gray patches appear in some parts of the mouth, predominantly in the buccal mucosa and the tongue. Thank you for signing up for our newsletter. The staging and survival rates vary based on the location of the mucosal melanoma. The word "buccal" refers to the inside of the cheeks in the mouth. Oral submucous fibrosis is a chronic, complex, premalignant (1% transformation risk) condition of the oral cavity, characterized by juxta-epithelial inflammatory reaction and progressive fibrosis of the submucosal tissues (the lamina propria and deeper connective tissues). 9 To treat plasma cell gingivitis, tell patients to discontinue use of the offending substance. Oral Submucous Fibrosis Pictures. In terms of appearance, these lesions often show up as translucent to opaque and easily visible to the eye. Note 2: In addition to directly assigning TNM, Summary Stage 2000 (SS2000) must be captured. Found inside â Page 36Eisenberg E. Common lesions of the oral mucosa : examination and differential diagnosis . Prime Care and Cancer 1992 ; ( Jan ) : 17â40 . Found insideEndoscopy has had a major impact in the development of modern medicine and other medical specialties. The field of endoscopic procedure has developed over the last decade. Also shown are the teeth, uvula, and tonsil. The use of tobacco and alcohol makes cancer in this area far more likely. Find in-depth information about skin cancer. Oral carcinoma, wide local excision with modified neck dissection followed by reconstruction of buccal defect with palatal mucoperiosteal flap. abnormalities of the vestibular mucosa and gingiva. 5. I had surgery on Sep 1 2014 and am recovering now. Found insideThis book contains an introductory chapter on the anatomical structures and physiology processes that underpin dysphagia and discusses the effects of polypharmacy and ageing on deglutition. The lips, the buccal mucosa, the lateral margins of our tongues, and the edentulous aveolar ridges are the areas in our mouth that are often affected by different types of frictional keratosis. Flap Tissue Help support the work we do! These may include: After surgery to decrease the risk of the cancer returning, To slow the growth of a tumor and control symptoms when the cancer cannot be cured (palliative treatment). This book is a comprehensive guide to diagnosis and management in oral medicine and pathology, with each chapter covering a different condition. The most common site is buccal mucosa although they may be found anywhere in oral mucosa. Found insideIn this book we cover relevant anatomy, biology, diagnosis and latest management strategies for pre-cancerous conditions that affect the oral mucosa. This information is not intended as a substitute for professional medical care. rior buccal mucosa at the level of the occlusal plane. The most common locations for an oral melanotic macule include: Lips, especially the lower lip. Carboplatin. buccal mucosa, hard palate, lips and tongue may also be seen as brown patches with less well-defined borders. Traditionally, lichen planus has been divided, based on clinical features, into a number of subtypes that include: Small buccal mucosa tumors are removed from the inside of the cheek with a scalpel. Found insideThis comprehensive multidisciplinary book examines all aspects of cancers of the mouth and oropharynx with the aim of equipping advanced students and practitioners in the early stages of specialist training with an up-to-date guide and ... Approximately 90% of oral cancers are squamous cell carcinoma (SCC), which is seen typically on the lip or lateral part of the tongue usually as a lump or ulcer that is white, red, or mixed white and red. The remainder of the tongue, soft palate, lips, and gingiva are less often involved. Whule surgery went well, lymph nodes came negative and margin of tissue removed from . A comprehensive atlas describing the surgical options for reconstructing the mandible. Know why a new medicine or treatment is prescribed, and how it will help you. In this patient, the anterior floor of the mouth, bilateral to the midline, demonstrated a vaguely marginated lesion, which was firm on palpation. This is a new edition of a classic textbook of oral pathology and oral medicine for dental students and candidates for postgraduate dentistry exams. The size of the tumor determines the size of the incision. A 48-year-old female presents with a hard gingival swelling that on X-ray consisted of dense bone which was contiguous with the cortex. Still another patient, in whom carcinoma was not preceded by leukoplakia, was referred at once to a surgeon. Mon - Sun 0900 - 2100 +91-9820403437contact@bombayent.com+91-9820403437contact@bombayent.com MUCOSA (C06.0) includes all the mucous membrane lining the inner surface of the cheek. This highly informative book is a one-stop resource for the physician looking to make the best possible choices in their daily practice. An estimated 49,670 people will be diagnosed with oral cavity cancer or oropharyngeal cancer in 2017, according to the American Cancer Society.And 9,700 of these cases will be . This technique preserves the skin. Postoperative radiotherapy has resulted in a better locoregional control rate for patient … Most oral lesions are traumatic in nature and have no potential for cancer (Figure A). The number of granules is quite variable. Mucosa of lower and upper lips are found in the lip schemas. Donate Today! Gums (gingiva) Inner cheek (buccal mucosa) Roof of the mouth (hard or soft palate) An oral melanotic macule appears as a solitary, flat, tan-to-dark-brown spot usually less than 7 mm in diameter. Oral carcinoma, wide local excision with modified neck dissection followed by reconstruction of buccal defect with palatal mucoperiosteal flap. Lichen Planus and Mouth Cancer . Objective: The objective of this study was to determine correlations between magnetic resonance imaging (MRI) features including radiologic depth of invasion (r-DOI) and pathologic DOI (p-DOI) of squamous cell carcinoma of the buccal mucosa. The treatment of SCC in the buccal mucosa consists of a wide surgical excision, and it is essential to achieve negative margins . Uneventful re. Core tip: Precancerous lesions of oral mucosa are the diseases that have malignant transformation risk at different ratios. Found insideThis book, Environmental Health Risk - Hazardous Factors to Living Species, is intended to provide a set of practical discussions and relevant tools for making risky decisions that require actions to reduce environmental health risk against ... Head Neck. There are no symptoms in the early stage. Right buccal mucosa cancer. Before your visit, write down questions you want answered. the risk level), and the stage of the cancer based on a biopsy or pathology after surgery. Labial Mucosa, lip mucosa, labial mucosa, lips mucosa, lip membranes mucous, Non-Hair Bearing Lip . Found insideThis book, "Histopathology-An Update" is a comprehensive book that deals with the latest advances in the field of histopathology. Buccal Mucosa. Newly formed blisters are likely to cause pain and itching sensation. A densely papillary, white, exothitic mass with posterior ulceration was noted on the mandibular gingiva of this 72 year old male with a 55 pack/year history of cigarette smoking and heavy alcohol consumption. An elongated, heterogeneous, red, well-defined ulceration was observed on the left lateral aspect of the tongue of a 48-year-old male. They grow in size over weeks to months. How you get it, how you treat and more. An elderly woman with advanced sun-induced degenerative alterations of face and lips. Reconstructive surgeons can repair soft tissue in parts of the tongue, the lining of the mouth, and the lips using a portion of skin called a graft. Squamous cell carcinoma of the buccal mucosa: an aggressive cancer requiring multimodality treatment. Note 1: This schema is based on the UICC chapter Lip and Oral Cavity, pages 25-29. Palatal and mandibular tori are bony protuberances and are . Chronic inflammation heads the list of many possible causes, but genetic disorders, infectious agents, and chemical substances may also be operative. The chemo drugs used most often for cancers of the oral cavity and oropharynx that can be given with or without radiation include: Cisplatin. Inner Cheek Cancer (Buccal Mucosa Cancer), soreness or a feeling that something is caught in your throat, preserve your appearance and the functions of your mouth, © 2021 Memorial Sloan Kettering Cancer Center, Gerstner Sloan Kettering Graduate School of Biomedical Sciences, Mouth Cancer Causes, Risk Factors & Prevention, Find in-depth information about skin cancer, Q & A: MSK Leads the Way in Treating Head and Neck Cancers, MSK Celebrates 100 Years of Leadership in Head and Neck Surgery. I had tissue and blood vessels taken from my left forearm and . This examination must include the inside and outside of the lips, the cheeks (buccal mucosa), the sides and undersurface of the tongue, the floor of mouth, the gums, the roof of the mouth (palate), the back of the mouth/top of the throat (oropharynx). Approximately 13,500 cases of carcinoma buccal mucosa have been reported from the various Indian cancer registries during 1990-1996, in comparison to 1272 cases registered world-wide during this 6 year period. In ICD-O-3 and the Summary Stage system, buccal mucosa includes the inner surface of the cheeks but not the inner mucosal surface of the lips. A flap of skin, usually from the forearm, is used to reconstruct the cheek. This ulceration of the buccal mucosa was noticed during a routine oral examination after a dental extraction. Study design: In total, 31 lesions were retrospectively evaluated. Anatomy of the oral cavity. 2006;28:150-157. In contrast, chewed carcinogens (chewing tobacco, betel nut) come in direct contact with the mucosa and may increase the risk of buccal or gingival cancers. Mouth cancer and other head and neck cancers are often treated similarly. This book includes more clinical aspects and concentrates on cancer and precancer of the oral mucosa rather than attempting to cover all benign and malignant tumours of the oral and oropharyngeal tissue. Cheek biting causes the outer layer of skin to rapture and traps blood. Found insideIn this text book, we have explored the biological and genetic pathways by which periodontal diseases may influence these disease processes and vice versa. This collection of photos contains both cancer and non-cancerous diseases of the oral environment which may be mistaken for malignancies. Diagnosis: Lichen Planus This ulceration of the buccal mucosa was noticed during a routine oral examination after a dental extraction. Found insideThe text is constructed as a procedure-based surgical atlas with special emphasis placed on depicting surgical techniques with high-resolution color illustrations and images. Also know what the side effects are. 2006;28:150-157. The oral cavity includes the lips, hard palate (the bony front . Dentists are typically the first to notice signs of inner cheek cancer, often during a routine dental exam. After a wide surgical excision, the buccal mucosal defect is most commonly reconstructed through radial forearm free . Found inside â Page 2010 17 Tongue Floor of the mouth Oropharynx Gingivat Buccal mucosa Palate Lip Total 34 23 20 10 6 3 4 100 42 49 35 43 54 43 29 43 60 56 54 61 62 0 75 56 30 ... . Lin CS, Jen YM, Cheng MF, et al. It is comprised of the epithelium, basement membrane, lamina propria mucosae, and lamina muscularis mucosae. From radiation therapy to clinical trials to check-ins with your doctor, your care is made as convenient as possible. Chemotherapy is prescribed for different reasons: Tips to help you get the most from a visit to your healthcare provider: Cedars-Sinai has a range of comprehensive treatment options. Found insideThe contents of this volume essentially complements the volume 1; with chapters that cover both basic and advanced concepts on complex topics in oral and maxillofacial surgery. buccal mucosa: it includes all the membrane lining of the inner surface of cheeks, anteriorly from oral commissure to retromolar gingiva posteriorly. Search for anything within the text, and have the results presented on screen in a few seconds. Unrivalled as the comprehensive, modern guide to all recognised Dermatological Diseases. If directly assigning SS2000, use the Cheek (Buccal) Mucosa . The use of tobacco and alcohol makes cancer in the buccal mucosa — the lining of the cheeks and lips — far more likely. BUCCAL MUCOSA: (Figures 5 and 6) Retract the buccal mucosa. Cancer of the buccal mucosa. Examine the commissures carefully. These cancers usually occur in the thin, flat cells called squamous cells that line the buccal mucosa and other parts of the mouth. English. In this patient, the buccal mucosa bilaterally showed red and white surface changes, with delicate keratotic striae enclosing a thin, but intact red area. C061 Vestibule of mouth. Mouth cancer is a major neoplasm worldwide and theoretically should be largely preventable or detectable at an early stage. Buccal mucosa cancer primarily occurs along the occlusal plane and is characterized by pain and ulceration, which are usually accompanied by a buccal mass. Inner cheek cancer (also called buccal mucosa cancer) is a type of head and neck cancer that begins when the cells that make up the inner cheek grow out of control and form lesions or tumors. Chemo drugs used to treat oral cavity or oropharyngeal cancer. During the years 1941 to 1947 we had 650 cases of histologically proved cancer of the buccal mucosa from a total of 3627 intraoral malignant tumors. Oral cancer may appear clinically as a subtle mucosal change or as an obvious mass. The medicine circulates in the blood and disrupts the growth of the cancer cells. Concepts. As they share epidemiology, pathology and general principles with other squamous cell carcinomas of the upper aerodigestive tract, those topics are covered there. Examination revealed a foul smelling lesion extending superiorly and to the posterior. This is the reason for the formation of a painless lump in the roof or inside the mouth. Patients may also have lesions on the lips, buccal mucosa, and tongue (with loss of filiform papillae). Advice is given on which conditions are minor, and which could signify more serious underlying disease. The ABC of Oral Health will be an invaluable reference for GPs, practice nurses, and all those involved in oral health care. The incidence of buccal mucosa carcinoma has rapidly increased in Taiwan in recent decades; major risk factors for this disease are smoking, alcohol drinking, and betel nut chewing[1-3].In patients with buccal mucosa carcinoma, locoregional recurrence (rate, 30-80%) is the main cause of treatment failure[4, 5].Several predictive factors for locoregional recurrence have been reported: bone . A 47-year-old male presents with a tender, well-defined ulceration of the left ventral tongue of 2 weeks duration. Type, Grade & Stage. A 78 year old woman with a long history of tobacco and alcohol abuse, has difficulty opening her mouth. Red and white surface alteration which is centrally indurated/firm was noted on routine examination in this 70-year-old male. Found insideVolume 3 is basically the sequel to Volumes 1 and 2; 93 specialists from nine countries contributed to 32 chapters providing comprehensive coverage of advanced topics in OMF surgery. The pigmentation is asymptomatic, and no treatment is required. This book, written by world authorities in the field, is a comprehensive, up-to-date guide to the specialty of Oral Medicine, which is concerned with the diagnosis, prevention, and predominantly non-surgical management of medically related ... Oral mucosal warts, also known as papillomas, appear as asymptomatic, small, soft, pink or white, slightly elevated papules and plaques on the buccal, gingival, or labial mucosa, tongue, or hard palate. Next in frequency was cancer of the buccal mucosa. Palatal and mandibular tori are bony protuberances and are . This is the ideal textbook for board examination preparation, or practitioners looking to update their knowledge in a particular area. Women and people older than 45 are more likely to get oral cancer, though it can happen at any age. It is contiguous with the mucosa that lines the floor of mouth and alveolar ridges. Lin CS, Jen YM, Cheng MF, et al. It is organised by first looking at the nature of agent before collecting the evidence of cancer in humans. This is followed by carcinogenicity studies on animals and then any other data relevant to an evaluation. A 59-year-old female with a painless papillary mass of the left posterior mandibular alveolar ridge. C060 Cheek mucosa. The buccal mucosa is comprised of the mucosal surfaces of the cheeks and lips, which form the anterolateral boundaries of the oral vestibule. This is a highly potent and chronic pre-cancerous condition that affects various portions of the oral cavity as well as the pharynx. The intra-oral presentation is characterised by the presence of bilateral and symmetrical white patches, which principally affect the buccal mucosae, labial mucosa, tongue and attached gingivae. The oral mucosa is the mucous membrane epithelium lining the inside of the mouth. A condition called pseudoepitheliomatous hyperplasia can cause a similar appearance and pathologically can be mistaken for cancer. The surgeon will make an incision on the inside of the cheek. The American Dental Association has developed recommendations to help your dentist in checking for signs of oral cancer. It causes progressive fibrosis of submucosal tissues and juxta-epithelial inflammatory reactions. Read the latest information for visitors. Below are a few general comments specific to the oral cavity. Found insidePap smear and the recently introduced prophylactic vaccines are the most prominent prevention options, but despite the availability of these primary and secondary screening tools, the global burden of disease is unfortunately still very ... The lining of the fleshy folds surrounding the mouth. They are caused by human papillomavirus (HPV). Buccal mucosa is another name for the inside lining of the cheeks. At the inferior aspect, there is a prominent red patch of tissue. Fig. Reconstruction of the cheek might be needed if the tumor is large. FIG. The lining of the inside of your cheeks (your buccal mucosa) Your gums (gingiva) The small area behind your wisdom teeth in your lower jaw (your retromolar trigone) Back to top Risk Factors for Oral Cavity Cancer. Inner cheek cancer is classified as squamous cell carcinoma. Lips Cancer Photo. Slightly elevated crater form and firm asymmetrical lesion were found on routine oral examination of the left lateral soft palette.