The anatomy of a collection.

An old collection of 81 congenitally malformed hearts was examined in detail using the system of sequential segmental analysis. The specimens were almost entirely from infants and young children who had died during the two decades between 1954 and 1973. There had been surgical intervention in 26 cases, and most of these patients died during or shortly after the operation.

Scleredema diabeticorum of Buschke confined to the thighs.

We describe a patient with insulin-dependent diabetes without vascular complications in whom scleredema was confined to the thighs. Electron microscopy demonstrated heterogeneity in both the size and density of the collagen fibrils and the presence of filamentous material between them.

HIV seropositivity in association with pityriasis lichenoides et varioliformis acuta.

We describe a case of PLEVA in an asymptomatic, human immunodeficiency virus (HIV) positive patient. This association has not been previously described. The possible mechanisms involved are discussed.