Obstructive Sialadenitis from Oral Squamous Cell Carcinoma: [68Ga]Ga-FAPI-46 PET-Positive and [18F]FDG PET-Negative.

Abstract

A 67-y-old nonsmoker woman with no prior history of head or neck surgery or radiation therapy presented with a growing ulcerative right floor-of-mouth mass with increasing tenderness, otalgia, and minimal intermittent bleeding. The floor-of-mouth mass biopsy was consistent with squamous cell