Sarcoidosis of the nervous system

Sarcoidosis of the nervous system can no longer be regarded as a great rarity and has been well reviewed by Jefferson (1957), Garcin (1960), and Suchenwirth (1963), among others. Its protean manifestations are not, however, always recognized and its natural history remains, in many respects, obscure. INCIDENCE The true incidence of sarcoidosis and of its clinical variations is difficult to establish, partly because many patients are segregated in specialized clinics but also because the disease may be symptomless throughout its course (Smellie and Hoyle, 1957). Suchenwirth (1963) stated that of 42,707 patients seen in the medical clinics at Kiel in 12 years, 100