Periarterial fibrosis in the spleen in idiopathic thrombocytopenic purpura.

The characteristic splenic lesion of idiopathic thrombocytopenic purpura (ITP) is said to be enlargement of the Malpighian bodies with the appearance of prominent germinal centers. Twenty-seven spleens therapeutically removed for ITP and 15 control spleens removed for trauma were reviewed. Lymphoid hyperplasia with germinal center formation was found more frequently in spleens with ITP than in the control spleens. In two of the spleens removed for ITP, a peculiar lesion was observed, which consisted of concentric layers of hyalinized material surrounding small arterioles, similar to the vascular "onionskinning" that commonly occurs in the spleens of patients with systemic lupus erythematosus. The clinical histories and laboratory data of these patients did not establish a diagnosis of systemic lupus erythematosus at the time of presentation.

[The eggs of Enterobius vermicularis in room dust. I. Methods]. / Raumstaubuntersuchungen auf Eier von Enterobius vermicularis. I. Methodik.

Results of anal swabs have been compared with room dust samples. The room dust was collected using little brushes as well as a vacuum cleaner from a standard surface of 0.25 m2. To collect room dust by vacuum cleaner, a slide was placed into a special chamber, connected to an absorbing device. Eggs of E. vermicularis have been found in samples made with anal swabs, room dust brushes and the vacuum cleaner, respectively, as follows: in the first examination 34%, 17.4% and 25.1%, in the second examination 35%, 17.7% and 15.7% and in the third examination 42%, 15.7% and 35.4%.. The results are discussed with regard to methodical and epidemiological aspects of the examination eggs of E. vermicularis in room dust.