Diaphyseal Medullary Stenosis with Malignant Fibrous Histiocytoma, also known as bone dysplasia with malignant fibrous histiocytoma, is related to diaphyseal medullary stenosis-bone malignancy syndrome and malignant fibrous histiocytoma. An important gene associated with Diaphyseal Medullary Stenosis with Malignant Fibrous Histiocytoma is MTAP (Methylthioadenosine Phosphorylase). Affiliated tissues include bone and skeletal muscle, and related phenotypes are myopathy and premature graying of hair