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Protrusio acetabuli presenting as a complex pelvic mass after total hip arthroplasty.

Leath CA, Barnes MN, Huh WK

Department of Obstetrics and Gynecology, Division of Gynecologic Oncology, University of Alabama at Birmingham, Birmingham, Alabama, USA. Trey_Leath@yahoo.com

BACKGROUND: The differential diagnosis in an elderly woman with a complex pelvic mass includes benign and malignant diseases. CASE: A woman in her ninth decade was discovered to have both a breast mass and a pelvic mass at examination. After diagnostic breast biopsy results that confirmed invasive breast carcinoma, pelvic examination and ultrasonography were performed. The ultrasonogram demonstrated a large complex pelvic mass. The patient underwent an exploratory laparotomy at the time of her mastectomy. The pelvic mass was a protrusio acetabuli resulting from a prior right total hip arthroplasty. CONCLUSION: A complex pelvic mass secondary to protrusio acetabuli is a rare clinical finding.

Published 1 November 2004 in Obstet Gynecol, 104(5): 1187-9.
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