میوفیبروبلاستومای عقده لنفاوی در بازوی پسر بچه 13 ساله“ گزارش یک مورد”

ABSTRACT Intranodal palisaded myofibroblastoma (IPM) is a rare primary nonlymphoid Tumor of the lymph node, which can easily be mistaken for other spindle cell tumors. Intranodal palisaded myofibroblastoma is thought to arise from intranodal myofibroblasts. We describe a 13 year Iranian boy with IPM arose in the right arm. The tumor was well-demarcated and composed of a fascicular proliferation of spindle cells with focal nuclear palisading and acellular stellate shaped collagen-rich areas. Histologically and immunohistochemically myofibroblastic differentiation was confirmed. To our knowledge this case represents only the first case of IPMin the lymph node of arm.