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Acta Cytol. 2005 Nov-Dec;49(6):653-5.

Fine needle aspiration cytology of focal myositis: a case report.

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  • 1Department of Pathology, Hospital San Agustín, Avilés, Spain.

Abstract

BACKGROUND:

Focal myositis is an unusual inflammatwy lesion of the skeletal muscle first described by Heffizer. It is a benign condition and usually involves the muscles of the limbs.

CASE:

A man presented with a palpable mass in the left leg of 6 months' duration. Nuclear magnetic resonance of the leg showed a mass in the tibial muscle; the presumptive diagnosis was sarcoma of the muscle. Smears showed inflammatory cells, skeletal muscle fibers with degenerative and regenerative changes, and fibrous tissue, suggesting a diagnosis of focal myositis. An incisional muscle biopsy was performed, confirming the diagnosis.

CONCLUSION:

Focal myositis should always he considered when aspirating muscle masses because it is a clinical mimic of a neoplasm. The prognosis is good, and all cases reported in the literature were self-limiting and gradually resolved.

PMID:
16450907
[PubMed - indexed for MEDLINE]
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