Malignant peripheral nerve sheath tumor with glandular differentiation in a patient with neurofibromatosis type 1.

: The authors report an unusual case of malignant peripheral nerve sheath tumor with malignant differentiation arising as a subcutaneous nodule in the thigh of a 53-year-old woman with a history significant for neurofibromatosis type 1. Peripheral nerve sheath tumors containing a glandular component, commonly referred to as glandular peripheral nerve sheath tumors, are rare neoplasms found largely in patients with neurofibromatosis type 1. These tumors are frequently malignant; recognition of metastatic potential is made based on the atypical spindle-cell component.

Pruritus in connective tissue and other common systemic disease states.

Pruritus is a common symptom reported in connective tissue and other common systemic disease states. Unfortunately, the unique pathophysiologic etiology of the often chronic and severe pruritus that is a debilitating component of many connective tissue disorders makes treatment with conventional anti-itch agents difficult. As the underlying mechanisms of pruritus have been identified, treatment strategies have evolved.