Abstracts Posters SICOT-SOF meeting Gothenburg 2010 _2_

Poster
Topic: Tumours
Abstract number: 25073
A PSEUDO-ANEURISM IN A PATIENT WITH A SOLITARY OSTEOCHONDROMA
OF THE DISTAL FEMUR. A CASE REPORT.
Efrain FARIAS CISNEROS, Carlos SUAREZ AHEDO, Felix GIL ORBEZO
Hospital Español De Mexico, Mexico City (MEXICO)
Osteochondroma is the most common benign bone tumor, and is often diagnosed as
an incidental finding. Mostly asymptomatic, they can cause mechanical symptoms
depending on their location and size. To our knowledge, not a single case of a
pseudo-aneurism of the femoral artery related with an osteochondroma has been
reported in the literature so far, although are previous reports of hematoma formation
near the bone lesion. This article presents a rare case of a large pseudoaneurism in
a patient with a solitary ostechondroma of the distal femur.Case report: 40-year-old
man presented with a 9-month history of pain and a progressive growing mass in the
posteromedial region of distal left tight. No history of trauma. Physical examination
showed a tender, not fixed, painless mass palpable in the posteromedial region of
the distal left tight. Radiographs and MRI showed a bony exostosis localized on the
posteromedial aspect of the distal third of femoral shaft, irritation in adjacent soft
tissues, with various masses -probably hematomas-; the largest producing mass
effect and inflammatory changes in muscular tissue. The patient underwent surgery
with diagnosis of osteochondroma plus hematomas in the tight. A well-margined,
friable tumor was localized contained in the surrounding tissues, during the
procedure the wall broke starting bleeding profusely. The arterial wall lesion was
repaired. A sessile exostosis was indentified, excised and sent to pathology, along
with the remaining mass. Five days later a second procedure was performed to
place an endoprosthesis in the left femoral superficial artery in a stenotic zone.
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