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K Hanazawa

Publications and source records attributed to K Hanazawa.

6 recordsLinked to original sources

[Intralesional and transarterial administration of interferon for renal cell carcinoma].

Topical administration of interferon for locally recurrent renal cell carcinoma in 2 cases was reported. Case 1: a 56-year-old woman had undergone radical nephrectomy for left renal cell carcinoma. She had a locally recurrent tumor adjacent to spleen 26 months after the surgery. She received 3 million units of interferon alpha every day intralesionally for almost 3 years without any distant metastasis. Case 2: a 59-year-old man had undergone left radical nephrectomy for renal cell carcinoma. He had recurrent tumor contiguous to spleen 24 months after nephrectomy. With Seldinger method a catheter was indwelled selectively in splenic artery. Two million units of interferon gamma was administered through the catheter, twice a week for 4 weeks, and once a week in subsequent course. The tumor showed necrosis on CT film. He died of DIC 5 months after the initiation of intraarterial administration of interferon gamma. Topical use of interferon showed some favorable effects in both cases even after the failure of systemic administration. Further investigation is warranted to demonstrate the advantage of topical use of interferon over systemic administration.

Carcinoma, Renal Cell

[Significance of urinary cadmium concentration as an indicator of cadmium exposure in a population exposed to cadmium in a general environment].

Study was made on the significance of urinary cadmium concentration as an indicator of internal dose in a general environment polluted by cadmium. As an index of external dose, the mean rice cadmium concentration in each of 23 villages was employed. Morning urine samples were collected from 3,178 inhabitants of 23 cadmium-polluted villages of Kakehashi River basin in Ishikawa Prefecture and 294 inhabitants of two nonpolluted villages. Cadmium concentration in urine was determined. In addition, their residential history and intake of cadmium-polluted rice were obtained. All the subjects were 50 years of age or over. Participation rates were 91% for the polluted area and 94% for the nonpolluted area. Urinary cadmium concentrations were higher in the inhabitants of the cadmium-polluted area than in those of the nonpolluted area. Among the inhabitants in the cadmium-polluted area, urinary cadmium concentrations were higher in the subjects who had consumed cadmium polluted rice than in those who had not. The mean urinary cadmium concentrations in each village increased proportionally to increase in mean village rice cadmium concentration (intensity of exposure) when the inhabitants were classified according to period of residence at their present address. The mean urinary cadmium concentrations in each village were also significantly correlated with period of residence at the present address (duration of exposure) when the inhabitants were classified according to mean rice cadmium concentration of their village. It is concluded that urinary cadmium concentration mainly reflects the body burden of cadmium in a general environment polluted by cadmium.

Adult

[Hemoadsorption].

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Hemoperfusion

[Adrenal myelolipoma: a report of a case].

This is a case report of an adrenal myelolipoma, accidentally diagnosed during a work-up for bladder tumor. A 67-year-old male presented with the chief complaint of gross hematuria. He was subsequently diagnosed as having a bladder tumor, which was resected transurethrally and was found to be a transitional cell carcinoma of Grade 2 and Stage pT2. During further examination for metastasis computed tomography (CT) scan revealed a round tumor (approximately 5 cm in diameter) in the left adrenal. A tentative diagnosis was reached based on the scan, and surgery was undertaken to remove the tumor. A well-encapsulated tumor, yellowish and partly dark brown in color and 60 grams in weight, was retrieved. The tumor consisted of mature lipoid cells with myeloid cells scattered among them which verified the pathological diagnosis of adrenal myelolipoma. The present case is the 16th clinical case of adrenal myelolipoma reported in the Japanese literature.

Adrenal Gland Neoplasms