title: [Venous leiomyosarcoma mimicking deep venous thrombosis: contribution of positron emission tomography].
abstract: Leiomyosarcomas are rare malignant mesenchymal tumors. We report the case of a 55-year-old man with a lung metastasis from an iliofemoral leiomyosarcoma mimicking a deep venous thrombosis (DVT). Vascular leiomyosarcoma occurs in the wall of large vessels, and usually presents as unexplained DVT. To date, few cases of peripheral leiomyosarcomas have been described in the literature. This observation demonstrates the usefulness of Positron Emission Tomography (PET), beyond oncologic staging, in such indications as the workup of an unexplained DVT. In this report, PET prevented a misdiagnosis of DVT by showing a peculiar cockade appearance of the vessel. Compared with conventional imaging, PET can provide complementary information. The specificity of such information still needs to be assessed.
authors.affiliation: Médecine interne, CHU Hôtel-Dieu, 1, place Alexis-Ricordeau, 44093 Nantes cedex 1, France. cecile.durant@chu-nantes.fr
authors.forename: C
authors.initials: C
authors.lastname: Durant
authors.forename: J
authors.initials: J
authors.lastname: Connault
authors.forename: A
authors.initials: A
authors.lastname: Moreau
authors.forename: C
authors.initials: C
authors.lastname: Bodet-Milin
authors.forename: E
authors.initials: E
authors.lastname: Letessier
authors.forename: B
authors.initials: B
authors.lastname: Planchon
authors.forename: M
authors.initials: M
authors.lastname: Hamidou
mesh_terms: D003937:Diagnosis, Differential; D017809:Fatal Outcome; D006801:Humans; D007150:Immunohistochemistry; D007890:Leiomyosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D049268:Positron-Emission Tomography; D011859:Radiography; D019043:Vascular Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D020246:Venous Thrombosis / Q000000981:diagnostic imaging