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Updated: Jun 13, 2026

Point-Of-Care Ultrasound Screening for Proximal Lower Extremity Deep Venous Thrombosis
Published on: February 10, 2023
Soft-tissue sarcomas in the inguinal region may present as deep vein thrombosis
Makoto Emori1, Norifumi Naka, Ken-Ichiro Hamada
1Musculoskeletal Oncology Service, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan. emrmkt@yahoo.co.jp
Abstract:
Swelling, pain, and discoloration in the affected extremities are classic symptoms of deep vein thrombosis (DVT), although these symptoms are often unreliable for diagnosis, and wide differential diagnoses exist. Soft-tissue sarcomas arising in the inguinal region may encompass or be adjacent to femoral vessels and result in venous obstruction, mimicking symptoms of DVT. We present two cases of soft-tissue sarcomas in the inguinal region that were initially misdiagnosed as spontaneous DVT and administered unnecessary long-term anticoagulation therapy. In patients diagnosed with unprovoked DVT, especially young patients aged <45 years, we recommend a careful physical examination and ultrasonography in the inguinal region to prevent overlooking possible underlying malignancy, as delays in diagnosis may affect prognosis.
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