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Rev Med Interne. 2006 Jan;27(1):50-3. Epub 2005 Oct 4.

[Intramuscular vascular malformations as a differential diagnosis of focal myositis].

[Article in French]

Author information

  • 1Service de médecine interne I, groupe hospitalier Pitié-Salpêtrière, 47-83, boulevard de l'Hôpital, 75651 Paris cedex 13, France.

Abstract

INTRODUCTION:

Focal myositis constitutes an original and rare pathological entity, characterized by a localized inflammation within skeletal muscle, presenting as a soft tissue painful tumefaction. Diagnosis requires histological confirmation because of its non-specific clinical feature and the numerous differential diagnoses.

EXEGESIS:

We report a 27 year-old man who presented with suggestive symptoms of focal myositis. MR imaging and echography were compatible with this diagnosis but also demonstrated the existence of a vascular component within the tumefaction. The diagnosis of a benign vascular malformation with intramuscular development was made by a surgically guided biopsy.

CONCLUSION:

Vascular malformations are histologically heterogeneous with extremely variable clinical expressions. When they develop within skeletal muscle, they may mimic focal myositis. Hence, their diagnosis has to be evoked before performing muscle biopsy, because of the potential hemorrhagic risk.

PMID:
16236388
[PubMed - indexed for MEDLINE]
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