Coexisting undifferentiated thymic carcinoma and thymic carcinoid tumor.
Thymic carcinoma is an unusual neoplasm, and the undifferentiated type is rare. Thymic carcinoid is also rare. This report describes a patient with coexisting undifferentiated thymic carcinoma and a carcinoid tumor. Both lesions were completely excised. The carcinoid cells showed argyrophilic granules by Grimelius' method and immunoreactivity against neuron-specific enolase, whereas the undifferentiated carcinoma cells were negative for argyrophilic stain and immunostaining against neuron-specific enolase.
Sensaki
K
K
Department of Surgery II, National Defense Medical College, Tokorozawa, Japan.
Aida
S
S
Takagi
K
K
Shibata
H
H
Ogata
T
T
Tanaka
S
S
Tamai
S
S
D002276:Carcinoid Tumor / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary; D013945:Thymoma / Q000473:pathology*; D013953:Thymus Neoplasms / Q000473:pathology*