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Solitary fibrous tumor of renal pelvis
Author(s) -
Yazaki Tsunetada,
Satoh Satoshi,
Iizumi Tatsuo,
Umeda Takashi,
Yamaguchi Yutaka
Publication year - 2001
Publication title -
international journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 67
eISSN - 1442-2042
pISSN - 0919-8172
DOI - 10.1046/j.1442-2042.2001.00360.x
Subject(s) - medicine , solitary fibrous tumor , cd34 , renal pelvis , vascularity , pelvis , pathology , differential diagnosis , genitourinary system , immunohistochemistry , renal capsule , nephrectomy , anatomy , radiology , kidney , urinary system , biology , stem cell , genetics
A 70‐year‐old Japanese man was referred because of a right renal mass of 2 years in duration. Imaging studies, including magnetic resonance imaging, revealed an ovoid mass, with relatively abundant vascularity, in the right renal pelvis. Right radical nephrectomy was done and a tumor measuring 6.0 × 4.5 × 4.0 cm was found in the renal pelvis. Solitary fibrous tumor (SFT) was highly suspected by histology. Immunohistochemical study using a monoclonal antibody directed against the human hematopoietic progenitor cell antigen (CD34) stain confirmed SFT. This is the first case of SFT of the renal pelvis. Although SFT is extremely rare in urogenital organs, this tumor must be included in the differential diagnosis when we encounter urogenital tumors consisting of mesenchymal elements.