Basal cell tumors of the parotid gland.
We present two patients with parotid tumors; one had a basal cell adenoma, and the other had a malignant tumor of uncommon morphologic features that was diagnosed as basal cell carcinoma. Both tumors showed morphologic similarities: peripheral, palisading, nests-like arrangements and organelle-poor cytoplasm. This suggests the same cell of origin.
D000236:Adenoma / Q000473:pathology / Q000648:ultrastructure; D001485:Basement Membrane / Q000648:ultrastructure; D002280:Basal Cell Carcinoma / Q000473:pathology* / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D003896:Desmosomes / Q000648:ultrastructure; D004721:Endoplasmic Reticulum / Q000648:ultrastructure; D006056:Golgi Apparatus / Q000648:ultrastructure; D006801:Humans; D008297:Male; D008875:Middle Aged; D008928:Mitochondria / Q000648:ultrastructure; D010307:Parotid Neoplasms / Q000473:pathology* / Q000648:ultrastructure