Primary non-Hodgkin's lymphoma of the cranial vault; MRI features before and after treatment

We present a case of a 71-year-old patient who was admitted with a subcutaneous scalp lump. MRI demonstrated a scalp lesion with infiltration of the bony calvarium and thickening of the dura, with irregular contrast enhacement. Biopsy revealed a malignant non-Hodgkin's lymphoma. After daily treatment with systemic chemotherapy and additional steroids over six months, a second MRI showed complete resolution of the mass. Primary non-Hodgkin's lymphoma of the cranial vault is extremely rare; imaging of a solitary and primary cranial vault non-Hodgkin's lymphoma by MRI before and after treatment has never been published before. Duynadam D. A. C. et al. (2002) Clinical Radiology57, 948-950