{Reference Type}: Case Reports
{Title}: Primary signet-ring cell carcinoma of the renal pelvis: An autopsy case.
{Author}: Iijima H;Murata H;Oishi S;Kubota Y;Sakamoto A;Tanabe K;Sugiyama K;Matsumoto A;Kuriki K;Kume H;
{Journal}: IJU Case Rep
{Volume}: 5
{Issue}: 4
{Year}: Jul 2022
暂无{DOI}: 10.1002/iju5.12462
{Abstract}: <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.