%0 Case Reports
%T Primary signet-ring cell carcinoma of the renal pelvis: An autopsy case.
%A Iijima H
%A Murata H
%A Oishi S
%A Kubota Y
%A Sakamoto A
%A Tanabe K
%A Sugiyama K
%A Matsumoto A
%A Kuriki K
%A Kume H
%J IJU Case Rep
%V 5
%N 4
%D Jul 2022
%M 35795105
暂无%R 10.1002/iju5.12462
%X <B>UNASSIGNED: </B>Signet-ring cell carcinoma is an extremely rare histological variant of upper urinary tract carcinoma, associated with poor prognosis.<BR><B>UNASSIGNED: </B>We report a case of a 75-year-old female diagnosed with left primary upper urinary tract signet-ring cell carcinoma, initially treated with surgery. Post-surgical development of multifocal metastases was followed by a devastating clinical course. An autopsy confirmed the tumor's primary origin in the upper urinary tract.<BR><B>UNASSIGNED: </B>We experienced a case of upper urinary tract signet-ring cell carcinoma, with a rare opportunity to thoroughly confirm its primary site with an autopsy.