Work

A symptomatic pelvic digit with surgical and pathological correlation

Year: 2025

Type: article

Abstract: Pelvic digits (also known as pelvic fingers or pelvic ribs) are rare supernumerary benign bony lesions. Most of them are asymptomatic but, when symptomatic, they can pose a diagnostic challenge. We hereby present a case of a pelvic digit responsible for an organic erectile dysfunction and a disabling pain in the sitting position. Pelvic radiographs showed a 2-cm ossified cannulated structure emerging from the right ischiopubic ramus, extending down into the right perineal soft tissues. MRI revealed a well-defined cortico-medullary digit with typical bone signal, developing near the hypertrophied root of the right corpus cavernosum and the insertion of the right adductor magnus muscle. The CT scan confirmed a pelvic digit with a pseudarthrotic single joint on the ischium. After a thorough 2-step surgical resection, pathologists confirmed the diagnosis. This particular radiologic challenge was to differentiate a pelvic digit from osteochondroma, avulsion-fracture sequelae, ligamentous calcification and myositis ossificans.

Source: Radiology Case Reports

DOI: 10.1016/j.radcr.2025.02.104

Authors: Romain Auger, Maxime Gouguet, Jean-Philippe Cottier, Valentin Lefevre

Institution: Centre Hospitalier Universitaire de Tours

Language: English

Topic: Bone Tumor Diagnosis and Treatments

Subfield: Rheumatology

Field: Medicine

Domain: Health Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $600