EP25.04: Unusual pelvic sonographic findings: a case series

Ultrasonography is often chosen as a first-line imaging modality to investigate patients presenting with pelvic complaints based on its demonstrated safety and effectiveness for decades. On occasion, findings may not align with traditional gynecologic etiologies and in these instances, rare conditions should be entertained as possible diagnoses. Adjunct imaging modalities may be necessary to investigate sonographic findings further. This case series highlights two rare pelvic masses and their sonographic features. First, perineurial (Tarlov) cysts are lesions of the sacral nerve root usually found incidentally on magnetic resonance imaging or gynecologic ultrasound, where they can appear tubular and cystic or multiloculated and multisepatated. Second, a wandering or pelvic spleen is characterised by weakened splenic ligaments resulting in mobility of the spleen to the pelvis. Previously reported by Wallace et al, wandering spleen are unusual; a vascular structure distinct from the uterus and ovaries and absence of spleen in the left upper quadrant may suggest a diagnosis that can be confirmed with a computed tomography scan of the abdomen.