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Primary Renal Synovial Sarcoma Mimicking Transitional Cell Carcinoma: A Case Report

Year: 2026

Type: article

Abstract: Primary renal synovial sarcoma (PRSS) is a rare malignant tumor with nonspecific imaging characteristics. This case concerns an 80-year-old man who presented with hematuria and flank pain. CT revealed a small left renal mass that rapidly enlarged over 3 months, with biopsy findings suggesting synovial sarcoma. A radical nephrectomy confirmed monophasic PRSS with SS18-SSX-positive staining. However, no recurrence was observed during the 2-year follow-up period. PRSS should be considered for atypical renal masses, and diagnosis requires histopathological examination combined with molecular testing.

Source: Journal of the Korean Society of Radiology

DOI: 10.3348/jksr.2025.0080

Authors: Pilwon Jeong, Suhong Kim, Heejung Kwon

Institutions: Yeungnam University Medical Center, Yeungnam University

Language: English

Topic: Sarcoma Diagnosis and Treatment

Subfield: Oncology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: diamond

OpenAlex ID: W7217389327

FWCI:

Cites: 8

Cited by:

Related to: 10