Tumor-to-tumor metastasis: Warthin tumor as a recipient of lung carcinoma and of renal carcinoma - Report of two cases.
Tumor-to-tumor metastasis is an exceedingly rare event with only about 100 cases reported in the English written literature. We report two cases of a 65-year-old man with duplicity of colonic and lung adenocarcinomas who presented with swelling of the left parotid gland, and of a 75-year-old man who presented with swelling of the right parotid gland. Microscopical and immunohistochemical examination showed metastasis of lung carcinoma and of renal carcinoma, respectively, to Warthin tumor as the first clinical manifestation of the malignancy in the latter case. To the best of our knowledge, such a phenomenon has not been reported so far.
Laco
Jan
J
The Fingerland Department of Pathology, Charles University Faculty of Medicine and Faculty Hospital in Hradec Kralove, Sokolska 581, 500 05 Hradec Kralove, Czech Republic. lacoj@lfhk.cuni.cz
Celakovsky
Petr
P
Kalfert
David
D
Hornychova
Helena
H
Rybnikar
Tomas
T
Ryska
Ales
A
D000230:Adenocarcinoma / Q000556:secondary*; D000235:Adenolymphoma / Q000473:pathology*; D000368:Aged; D002292:Carcinoma, Renal Cell / Q000556:secondary*; D006801:Humans; D007680:Kidney Neoplasms / Q000473:pathology*; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology; D010307:Parotid Neoplasms / Q000473:pathology*