Incidental left flank mass

Marianna Konidari, Charis Bourgioti, Sofia Gourtsoyianni


A 71-year-old female patient, with an unremarkable past medical history, presented at the radiology department for a scheduled kidney –ureter-urinary bladder ultrasound (KUB US) for further investigation of dysuria. Laboratory studies were normal. An incidental mass was discovered in the left flank on US (Fig. 1). A Computed Tomography (CT) of the abdomen and pelvis (Fig. 2) followed by a Magnetic Resonance Imaging (MRI) examination of the retroperitoneum (Figs. 3-5) were performed.


ancient schwannoma; femoral nerve; retroperitoneal schwannoma

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