title: THE PROBLEM OF THE NEGATIVE BIOPSY: REPORT OF CASE.
mesh_terms: D001706:Biopsy; D002277:Carcinoma; D002294:Carcinoma, Squamous Cell; D009369:Neoplasms / Q000175:diagnosis*; D010336:Pathology; D012468:Salivary Gland Neoplasms; D013514:Surgical Procedures, Operative
keywords: BIOPSY; CARCINOMA, EPIDERMOID; NEOPLASM DIAGNOSIS; PATHOLOGY; SALIVARY GLAND NEOPLASMS; SURGERY, OPERATIVE