title: Mast cells--their presence and ultrastructural characteristics in peripheral nerve tumors.
mesh_terms: D006801:Humans; D008407:Mast Cells / Q000473:pathology*; D008854:Microscopy, Electron; D009456:Neurofibromatosis 1 / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology*