Primary renal carcinoid.
A case of primary renal carcinoid in a 34-year-old man is reported. The lesion was morphologically identical to carcinoid tumors arising in the gastrointestinal or respiratory tracts. The renal carcinoid was focally argyrophilic and contained chromogranin and neuron-specific enolase disclosed by immunohistochemical studies. The diagnosis was further confirmed by membrane-bound cytoplasmic neurosecretory granules visualized by electron microscopy. The possible histogenesis of this unusual tumor and a review of the literature are discussed.
Lillian and Henry M. Stratton-Hans Popper Department of Pathology, Mount Sinai School of Medicine, City University of New York, NY.
P D
PD
Unger
A
A
Russell
S N
SN
Thung
R E
RE
Gordon
D000328:Adult; D002276:Carcinoid Tumor / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D007668:Kidney / Q000473:pathology; D007680:Kidney Neoplasms / Q000473:pathology* / Q000648:ultrastructure; D008297:Male; D008854:Microscopy, Electron