Adenoid squamous cell carcinoma of the oral mucosa:  report of two autopsy cases.
Two autopsy cases of adenoid squamous cell carcinoma of the oral mucosa proper are presented. Consecutive histologic examinations confirmed that adenoid transformation had occurred directly from within the pre-existing usual squamous cell carcinoma during the course of the disease. The adenoid pattern was reproduced in the lymph node metastases in both cases. The behavior and autopsy findings were not significantly different from those of usual squamous cell carcinoma of the oral mucosa.
D000230:Adenocarcinoma / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009061:Mouth Mucosa; D009062:Mouth Neoplasms / Q000473:pathology*; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local