[Spontaneous kidney rupture].

Two cases of spontaneous rupture of the kidney are reported and the literature is reviewed. The clinical and pathological features of this uncommon disease and its treatment are discussed. In the first case the cause of retroperitoneal bleeding was a renal carcinoma, while in the second it was the result of renal metastases from gestational trophoblastic disease.

[Spongiocytic adenoma of the adrenal cortex--risk of misinterpretation as a cyst in computerized tomography].

A report on two cases where solid benign tumours of the adrenals (spongiocytic adrenocortical adenomas) were misinterpreted as adrenal cysts due to water-equivalent density values. The CT scans are compared with the microscopic cuts.

Where does cat allergen 1 come from?

Cat allergen 1, the major allergen from cats, has been demonstrated to be present in surface washing and in saliva. With the use of an immunohistologic technique with monospecific anti-CA 1, we demonstrated two different sources of the protein, mucous salivary glands and hair roots, where it originates from sebaceous glands.

Electron microscopic investigations on dust penetration into the pulmonary interstitium in experimental pneumoconioses.

Pneumoconioses produced by intratracheal applications of various dusts (quartz, coal, cadmium and lead sulfide) in rats were investigated by electron microscopy in order to follow the pathway of the dust particles from the alveoli into the pulmonary interstitium. As postulated by Spencer in 1977 on the basis of light microscopic investigations, the dust particles produce necroses of the alveolar septae ('alveolar ulcers'). TWo forms of necroses appear to occur: with a less severe dust exposure, individual pneumocytes and their basement membrane are destroyed by dust particles.

[A comparative morphological and enzyme-histochemical study of experimental pneumoconiosis and experimental allergic-hyperergic pulmonary granuloma (author's transl)].

Six endotracheal applications of 15 milligrams of cadmium sulfide (CdS) given to rats at weekly intervals induce pneumoconiosis with massive adhesions. The same quantities of lead sulfide (PbS) given under the same conditions have much less effect, causing only the formation of fairly small fibrous nodules. The tissue reactions to CdS and PbS were studied morphologically (light and electron microscope) and enzyme-histochemically.

Papillary carcinoma of the thyroid gland and atresia of the common bile ducts of a five year old boy.

We present a case of papillary carcinoma of the thyroid gland with pulmonary metastases in a 5 year old boy. The child also suffered from atresia of the gallbladder and the common bile ducts with biliary cirrhosis of the liver and died from hepatic insufficiency. Possible correlations between childhood thyroid carcinoma and congenital malformations are discussed.

[Desquamative interstitial pneumonia. Peripheral eosinophilia in DIP: a new clinical aspect (author's transl)].

It were Liebow et al. (1965) who, for the first time, described the desquamative interstitial pneumonia (DIP) as one clinical and morphological unit. The etiopathology of this disease is still unknown and there exist many controversial opinions as to its role within the interstitial pneumonias.

[Primary fibrosarcoma of the right atrium (author's transl)].

A case of a primary fibrosarcoma of the heart from a 32 year old man is reported. The site of origin of the tumor was the right atrium, and death was caused by cardiac tamponade. Metastatic foci were not present.