“…The most characteristic is a circumscribed, purely destructive lesion of varying size and resembling a punched-out cavity radiologically. We have, however, been able to find references to 20 cases of multiple myeloma with osteosclerotic lesions (Rypins, 1933;Krainin, D'Angio, and Smelin, 1949;Kohler and Laur, 1950;Galgano, 1955;Lewin and Stein, 1958;Engels, Smith, and Krantz, 1960;Porter, 1961;Tuboku-Metzger, 1961;Yentis, 1961). In three of these 20 cases, a coexistent polyneuropathy was described.…”