Bronchial Carcinoid Metastatic to Skin

Abstract
The value of ultrastructural examination of an undifferentiated carcinoma metastatic to skin was studied. In a 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. Nine additional cases of bronchial carcinoids metastatic to skin are also briefly reviewed.

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