Low grade malignant peripheral nerve sheath tumor with smooth muscle differentiation

Abstract

Malignant peripheral nerve sheath tumors are usually Schwann cell derived. Differentiation along mesenchymal lines is uncommon. Herein we present an example with smooth muscle differentiation occurring in the left distal forearm of a 62-year-old male with neurofibromatosis type I. Incisional biopsy of the slowly growing mass demonstrated a low-grade… (More)
DOI: 10.1007/s00401-006-0171-8

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