The combination of defects in cartilagebone formation, dyschondroplasia (Ollier's disease), with subcutaneous vascular hamartomata, was first described in 1881.1 This association of lesions is known as Maffucci's syndrome. Since then further examples have appeared sporadically in the literature. The subject was well reviewed by Carleton (1942) and her co-workers,2 the total number of recorded cases at that time being 20. Bean3 and Aimes and Franchebois4 have added more recent contributions, and the total number of established cases, including the present one, is 36. The present report concerns a patient with Maffucci's syndrome and is the second case in which the course has been complicated by the occurrence of a primary intracranial tumor. Report of Case A 60-year-old Hungarian-born married woman was first admitted to the hospital on April 26, 1958, with complaints of headache and vomiting, associated with attacks of unconsciousness. Headaches had been present