Home/Quiz/Oral Submucous Fibrosis Presentation Test Oral Submucous Fibrosis Presentation Test Welcome to your Oral Submucous Fibrosis Presentation Test 1. A 22-year-old man presents with a 2-year history of chewing areca nut-containing pan masala several times daily. He reports progressive difficulty opening his mouth, burning of the oral mucosa when eating spicy food, and dryness. Examination reveals diffuse mucosal blanching and early restriction of interincisal distance. Based on the presentation, which underlying tissue process most directly explains the development of oral submucous fibrosis (OSF)? Decreased collagen formation with increased collagen degradation Increased collagen formation with decreased collagen degradation Acute epithelial necrosis without connective tissue involvement Exclusive destruction of salivary gland acini Primary loss of oral mucosal pigmentation None 2. A 19-year-old student regularly consumes areca nut, mawa, and pan masala. He has no significant systemic illness but develops progressive oral tightness. When counseling him about the etiological basis of OSF, which statement is most consistent with the presentation? OSF is caused only by tobacco abuse OSF is exclusively an inherited disease OSF is multifactorial and may involve areca nut, tobacco, nutritional deficiency, autoimmune disease, and genetic predisposition OSF occurs only after the age of 60 years OSF is caused only by bacterial infection None 3. A 28-year-old man who chews betel nut presents with fibrous bands limited to the faucial region. The bands do not extend forward into the cheeks or lips. Which Haider clinical stage is most appropriate according to the classification shown in the presentation? Stage I Stage II Stage III Stage IV Stage C None 4. A patient with OSF has fibrous bands involving the faucial region and extending forward into both cheeks. The lips are not involved. Which Haider stage best describes this pattern? Stage I Stage II Stage III Stage A Stage C None 5. A 35-year-old patient with OSF has fibrous bands involving the faucial region, buccal mucosa, and labial mucosa, producing widespread involvement that reaches the lips. Which classification stage is indicated? Haider Stage I Haider Stage II Haider Stage III Passi Grade 1 Functional Stage A None 6. A 24-year-old man with early OSF has burning of the oral mucosa, dryness, mild blanching, and involvement of less than one-third of the oral cavity. His interincisal mouth opening is 35 mm. Histology demonstrates fine edematous collagen and congested blood vessels. Which Passi grade best fits these findings? Grade 1 Grade 2 Grade 3 Grade 4 Functional Stage C None 7. A 31-year-old patient reports progressive oral tightness. Examination reveals involvement of one-third to two-thirds of the oral cavity, mottled marble-like blanching, and palpable fibrotic bands in the soft palate and premolar region. Interincisal opening is 30 mm. Which additional management approach is specifically listed for this grade in the presentation? Immediate bilateral temporalis myotomy in every case Band excision with reconstruction as the only treatment Intralesional placental extracts, hyaluronidase, steroid therapy, and physiotherapy No treatment because OSF is self-limiting Treatment with antibiotics alone None 8. A 42-year-old man presents with severe oral stiffness. More than two-thirds of the oral cavity is involved, with severe blanching, thick fibrous bands in the cheeks and lips, rigid mucosa, a depapillated tongue, restricted tongue movement, and a shrunken bud-like uvula. Mouth opening is 20 mm. Which treatment plan is most consistent with the presentation for this grade? Habit cessation only with reassurance Band excision and reconstruction with buccal fat pad or split-thickness graft, with possible temporalis myotomy or coronoidectomy Topical moisturizer alone Observation because recurrence is absent Treatment with nutritional supplements only None 9. A 48-year-old patient with longstanding OSF has mouth opening of 12 mm. Examination shows leukoplakic and erythroplakic areas with ulceration and suspicious malignant changes. Which management approach is emphasized in the presentation? Ignore the lesion if the patient has no pain Treat only with nutritional supplements Surgical treatment and biopsy of the lesion Physiotherapy alone Reassurance that malignant transformation cannot occur None 10. A 26-year-old habitual areca nut user develops progressive trismus and intolerance to spicy foods. The presentation’s pathophysiology diagram identifies alkaloids such as arecoline, arecaidine, and guacine. Which mechanism is shown for these alkaloids? They inhibit fibroblast activity and reduce collagen synthesis They stimulate fibroblasts, increasing collagen synthesis and collagen accumulation in the submucosa They cause only epithelial pigmentation They directly dissolve collagen fibers They exclusively block salivary secretion without fibrosis None 11. A patient asks how flavonoids from areca nut may contribute to OSF. According to the diagram in the presentation, which effect is associated with flavonoids such as tannins and catechins? Increased cross-linking and stabilization of collagen with decreased degradation by collagenase Complete inhibition of collagen formation Destruction of all subepithelial blood vessels at onset Reduction of fibroblast proliferation Prevention of collagen accumulation None 12. A 30-year-old man who chews areca nut has repeated mucosal trauma during chewing. The presentation describes a pathway from trauma to fibrosis. Which sequence best matches that pathway? Trauma during chewing → inflammation → growth factors → increased collagen synthesis → increased fibrosis Trauma during chewing → immediate collagen destruction → reduced fibrosis Trauma during chewing → complete epithelial regeneration → resolution Trauma during chewing → salivary gland atrophy only → hearing loss Trauma during chewing → reduced growth factors → decreased collagen synthesis None 13. A 38-year-old patient with advanced OSF complains of difficulty speaking and chewing, dysphagia, and a sensation of ear blockage. Examination shows fibrosis involving the posterior oral cavity and soft palate. Which explanation is specifically supported by the presentation? Hearing disturbances may occur because fibrosis surrounds the opening of the Eustachian tube Hearing disturbances occur only because of external ear infection Dysphagia is unrelated to posterior oral cavity involvement Speech difficulty occurs only because of dental caries OSF never affects the soft palate or pharyngeal region None 14. A 23-year-old patient with OSF is examined for clinical signs. The oral mucosa feels leathery on palpation, and firm fibrous bands are particularly evident in the posterior buccal and labial mucosa. The lips appear restricted, and the mucosa has a marble-like blanching pattern. Which clinical finding is most characteristic of the described examination? Leathery mucosa with palpable fibrous bands and mucosal blanching Soft, fluctuant swelling with pus discharge Generalized vesicles with intact mobility Diffuse blue pigmentation without fibrosis Painless enlargement of the salivary glands None 15. A patient with OSF is being counseled about treatment. The clinician explains that management should address the habit, nutritional status, symptoms, and established fibrosis. Which option best represents the broad treatment framework presented? Health education, removal of pathogenic factors, drug therapy, and surgical therapy Surgery for every patient regardless of grade Antibiotics as the only treatment modality No intervention until complete trismus develops Radiotherapy as the routine first-line treatment None 1 out of 8 Time's up
