Castleman, Benjamin (1906–1982),
American pathologist. Castleman spent most of his career at Boston's Massachusetts General Hospital. He became head of the hospital's division of anatomic pathology, while concurrently serving as professor of pathology at Harvard Medical School. From 1951 to 1975 he was editor of case records for Massachusetts General. He was known for his clinicopathologic investigations of parathyroid disease, and his work formed the basis for modern-day surgical treatment of hyperparathyroidism. He was credited as the author or coauthor on more than 100 papers on a variety of disorders. In 1954 he described what is now known as Castleman's disease.