title: Pathology quiz 43.
authors.affiliation: Mt. Sinai Hospital, Department of Otolaryngology, 600 University Ave., Toronto, ON M5G 1X5.
authors.forename: Ian
authors.initials: I
authors.lastname: Witterick
authors.forename: Warren
authors.initials: W
authors.lastname: Hartwick
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000473:pathology*; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D010282:Parathyroid Neoplasms / Q000473:pathology*; D013964:Thyroid Neoplasms / Q000473:pathology*