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Biomedical subjects

H Koba

Publications and source records attributed to H Koba.

At least 55 records · Page 3Linked to original sources

[Two cases of Mycoplasma pneumonia showing nodular shadows: computed tomographic findings].

Two cases of Mycoplasmal pneumonia showing nodular shadows on roentgenogram, in a 31 year-old woman and a 28 year-old man, were reported. The consequence of a radiographical analysis reveals that the nodular shadows on the roentgenogram were revealed on CT by the thickness of the bronchoarterial bundles and the nodular opacities which had a cetriacinar or centrilobular distribution, at the ends of the branches of the pulmonary arteries and bronchi. These findings suggest that the pulmonary lesions of Mycoplasmal pneumonia were located in the peribronchial and periarterial interstitium and the bronchioles and their adjacent alveoli. CT is useful in the evaluation of nodular shadows on roentgenogram.

Adult↗

A case of bronchioloalveolar carcinoma. Ultrastructural and lipid-biochemical studies.

A case of bronchioloalveolar carcinoma was studied electron microscopically and lipid biochemically. Electron microscopic examination revealed that the tumor was composed of three different types of cells, undifferentiated cells, cells possessing lamellar inclusion bodies within the cytoplasm, and cells containing mucus droplets. The characteristic findings in the phospholipid profiles of this case of bronchioloalveolar carcinoma were a high content of saturated classes of phosphatidylcholine, especially of the dipalmitoyl type, and the occurrence of appreciable amounts of phosphatidylglycerol. These observations indicate that some of the tumor cells examined in this study had the characteristic feature of alveolar type II cell differentiation which is responsible for production of pulmonary surface-active materials. The value of phospholipid analysis in assessing such tumors is emphasized.

Adenocarcinoma↗