Biomedical subjects
Publications and source records attributed to D Voncina.
We report an example of fibroma of tendon sheath with pleomorphic bizarre cells without mitoses. The tumor appears to be morphologically identical to a similar tumor in the skin and represents yet another example of a benign soft-tissue neoplasm with disturbing morphological features.
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In the male rat the volumes of the several zones of the adrenal cortex were measured using a point-counting technique at various ages. The resulting growth curves were fitted by the Gompertz method, and the specific growth rate calculated for each zone at 14 days of age. Also at 14 days the flash labelling index was measured in contiguous bands each three cells in thickness across the cortex; maximum indices were found in the outer cortical layers. Calculations of the birth rate for each zona were compared with the growth rates. In the zona glomerulosa, the birth rate exceeded the growth rate, giving a cell migration rate of 4 cells/1000 cells/hour. In the zona reticularis there was a net cell gain of 5 cells/1000 cells/hour; in this zone, for every 100 cells born by cell division, nearly 2000 were added by cell migration. The results support the migration hypothesis of adrenocortical cytogenesis.
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A rare case of amniotic fluid embolism in the 26-th week of pregnancy is presented. After the McDonald operation for the repair of the incompetent cervix, a premature rupture of the membranes occurred. After a five-day period of amniorrhea an elevation of the body temperature over 39 degrees C was observed, as well as respiratory distress, cyanosis, and coma. It ended with the patient's death. The pathomorphological finding demonstrated the amniotic fluid embolism of the lung and brain arterioles.
Our findings refer to a female patient with Felty's and Sjögren's syndromes and hypertrophic obstructive cardiomyopathy. The rheumatoid granuloma found in the left ventricle at autopsy and the absence of other conditions which may be manifested by hypertrophic obstructive cardiomyopathy suggest that the case studied, probably represents an extraarticular manifestation of Felty's and Sjögren's syndromes.