[Intraluminal renal metastasis from a rectal adenocarcinoma: an unusual site].
Primary adenocarcinoma of the urinary tract are uncommon. But secondary involvement of pyelocalyceal system by metastasis of colorectal origin is rare. We report a case of late rectal metastasis with renal pelvis growth presenting as a pyonephrosis. This study emphasizes the relevance of cytokeratin 7 and 20 immunostaining in such differential diagnosis.
Rioux-Leclercq
N
N
Service d'Anatomie Pathologique B, CHRU Pontchaillou, Rennes. nathalie.rioux@chu-rennes.fr
Le Gall
F
F
Ziade
J
J
Patard
J J
JJ
Guille
F
F
Lobel
B
B
Ramee
M P
MP
D000230:Adenocarcinoma / Q000473:pathology* / Q000556:secondary*; D000368:Aged; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D007381:Intermediate Filament Proteins / Q000032:analysis; D053554:Keratin-20; D053552:Keratin-7; D007633:Keratins / Q000032:analysis; D007680:Kidney Neoplasms / Q000473:pathology / Q000556:secondary*; D008297:Male; D012004:Rectal Neoplasms / Q000473:pathology*
D007381:Intermediate Filament Proteins; C507499:KRT20 protein, human; C507497:KRT7 protein, human; D053554:Keratin-20; D053552:Keratin-7; D007633:Keratins