Akademik Veri Yönetim Sistemi
Balıkesir Medical Journal, cilt.25646664, sa.7 (2), ss.56-59, 2023 (Hakemli Dergi)
Obstructive uropathy occurs due to several common causes such as kidney stones, vesicoureteral reflux,
posterior urethral valve and urothelial tumors. Additionally, there are some rare causes such as solid tumors,
retroperitoneal fibrosis, primary lymphomas (e.g. Non-Hodgkin lymphomas). A 20-year old male with lower
back pain underwent a bone scan for differential diagnosis of back pain. The bone scan findings were normal,
except for the presence of unilateral renal stasis accompanied by a short segment ureteral stasis. Due to the
abrupt termination of the ureteral activity, namely the “cutoff sign”, a subsequent SPECT/CT imaging was
performed for differential diagnosis of ureteral stasis. Non-diagnostic CT sections revealed a para-aortic soft
tissue mass compressing the ureter. The abrupt termination of stasis in the ureter may warrant the application
of SPECT/CT in cases with no previous history of urinary tract pathology. SPECT / CT may provide additional
benefits of clarifying the etiology and this case underlines the added value of SPECT/CT imaging in subtle
scintigraphic findings.