title: Cytodiagnosis of acinic cell carcinoma. Ultrastructural study of material obtained by fine needle aspiration biopsy.
abstract: The material obtained by fine needle aspiration biopsy from a metastatic acinic cell carcinoma was evaluated by light and electron microscopy. A preliminary diagnosis of acinic cell carcinoma established by light microscopy was confirmed by electron microscopic study. Glandular arrangement of cancerous cells and the presence of a specific type of secretory granules in their cytoplasm were the most characteristic ultrastructural features of the acinic cell carcinoma.
mesh_terms: D001707:Biopsy, Needle; D002277:Carcinoma / Q000175:diagnosis* / Q000473:pathology / Q000532:radiotherapy; D003581:Cytodiagnosis; D003594:Cytoplasmic Granules / Q000648:ultrastructure; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D008854:Microscopy, Electron; D008875:Middle Aged; D009362:Neoplasm Metastasis; D009364:Neoplasm Recurrence, Local; D009940:Organoids / Q000648:ultrastructure; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000532:radiotherapy; D014964:X-Ray Therapy