Monoclonal gammopathies in Sézary syndrome: a report of four new cases and a review of the literature.

Clinical and laboratory findings of four patients with Sézary syndrome and monoclonal gammopathy are presented. In the literature five cases with the association of these symptoms have been reported. Among the authors' series of 13 patients with Sézary syndrome, monoclonal gammopathy was observed far more often than could be expected from its natural incidence.

Dvelopment of the Harderian gland in the chicken: light and electron microscopic investigations.

The Harderian gland of the chcken develops from epithelial cones of the conjunctiva between the 11th and 12th day of embryonal life. The development of the organ proceeds in two phases. During the stage of epithelial development (days 13 to 17 of embryonal life) the acinar epithelium differentiates into a lumen-adjacent glandular epithelium, and a separate layer of basal epithelial cells.

The influence of embryonal bursectomy on benzpyrene-induced sarcoma of the chicken.

160 chickens hormonally bursectomized before hatching, and 160 controls were twice given a dose of 10 mg 3,4-benzo(a)pyrene 2 weeks and 6 weeks after hatching. After 24 weeks the controls had developed muscle sarcomas at a significantly higher rate than the bursectomized animals (49.6--32.