title: Bronchial carcinoid metastatic to skin. Light and electron microscopic findings.
abstract: This case report illustrates the value of ultrastructural examination of an undifferentiated carcinoma mestastatic to skin. In this patient, ultrastructural study of a cutaneous nodule demonstrated cytoplasmic neurosecretory granules characteristic of an amino precursor-uptake and decarboxylation cells (APUD) tumor and supported the diagnosis of metastatic bronchial carcinoid. Additional nine cases of bronchial carcinoids metastatic to skin are also briefly reviewed.
mesh_terms: D001984:Bronchial Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D002276:Carcinoid Tumor / Q000473:pathology / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008854:Microscopy, Electron; D008875:Middle Aged; D012878:Skin Neoplasms / Q000473:pathology* / Q000556:secondary* / Q000648:ultrastructure