Pathology · patient case question
What is the most appropriate FIRST step for Patient B?
Patient case: Two infections, forty-seven years apart
Patient: Two patients
Chief Complaint: A: “I need this tooth out.” B: “My throat has been sore on one side for a month.”
Background: A, 70-year-old male: acute rheumatic fever at age nine following a throat infection. No valve surgery, no previous endocarditis. B, 23-year-old male: non-smoker, minimal alcohol. A painful right tonsillar lesion for four weeks, initially febrile, treated with a full course of broad-spectrum antibiotics without resolution.
Vital Signs: A: BP 138/82 mmHg · HR 76 bpm. B: afebrile now.
Findings: A: non-restorable tooth #19. B: unilateral enlargement of the right tonsil with a firm ulcerated area, and a single firm ipsilateral cervical lymph node. The left tonsil is normal.
Show answer and explanation
Correct answer: A. Urgent referral for biopsy of the tonsillar lesion
- A. CORRECT. A UNILATERAL, persistent, ulcerated tonsillar lesion that has not resolved with antibiotics, accompanied by a firm ipsilateral cervical node, must be treated as OROPHARYNGEAL CARCINOMA until proven otherwise, and only biopsy settles it. In a 23-year-old non-smoker the aetiology to think of is HPV, particularly TYPE 16 — HPV-positive oropharyngeal cancer characteristically affects younger patients who neither smoke nor drink heavily, arises in the TONSIL and BASE OF TONGUE, and presents with a small primary lesion and a disproportionately prominent, often cystic, neck node. Because the tonsil sits at the boundary of dental and ENT territory, the correct route is urgent specialist referral rather than an office biopsy.
- B. Watching a persistent ulcerated lesion with an ipsilateral neck node for six months is indefensible. The working rule is that any oral or oropharyngeal ulcer persisting beyond two to three weeks without an obvious cause requires biopsy.
- C. Tonsillectomy as a therapeutic step before any diagnosis exists is the wrong order. A diagnostic tonsillectomy is sometimes how the specimen is ultimately obtained, but that is a decision for the surgeon after assessment.
- D. The lesion has ALREADY failed to respond to a full course of antibiotics, and that failure is precisely the finding that raises concern. Repeating them changes nothing except the delay before diagnosis.
Note: HPV-positive oropharyngeal carcinoma carries a considerably BETTER prognosis than HPV-negative disease and is staged separately for that reason — but the improved prognosis depends entirely on it being diagnosed. Youth and the absence of tobacco and alcohol history are exactly what makes clinicians dismiss these lesions, and that is the trap the case is built around.