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Updated: Jun 13, 2026

Human Vastus Lateralis Skeletal Muscle Biopsy Using the Weil-Blakesley Conchotome
Published on: March 4, 2016
[Iliopsoas muscle hematoma during treatment with warfarin]
Gabriel Zago1, Marcelo Campos Appel-da-Silva, Luiz Claudio Danzmann
1Hospital Nossa Senhora da Conceição, Porto Alegre, RS, Brasil.
Abstract:
Warfarin is a widely used drug for the prevention of thromboembolic events. Knowledge of its adverse effects is necessary for patient follow-up. Although the development of blood dyscrasias is a potential complication in these patients, retroperitoneal bleeding is rare. This article reports the case of a patient who developed iliopsoas muscle hematoma during treatment with warfarin after implantation of a metallic prosthetic aortic valve. The clinical manifestations involved important differential diagnoses.
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