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Biomedical subjects

J Kelemen

Publications and source records attributed to J Kelemen.

At least 91 records · Page 5Linked to original sources
PubMed1978

[A contribution to radiological diagnostics of xanthogranulomatous pyelonephritis (author's transl)].

Pyelonephritis xanthogranulomatosa is a peculiar manifestation of destructive interstitial nephritis which can be differentiated from other types of pyonephrosis exclusively by microscopic examination. Clinical symptomatology often points towards the existence of a renal tumor. The author analyses the clinical and radiological symptomatology of seven patients treated by him. The angiographic picture presented by pyelonephritis xanthogranulomatosa differs according to the character and extension of the inflammatory tissue lesion. The angiographic picture of the circumscribed and diffuse granular proliferative types resembles that of a poorly vascularised malignoma, whereas the destructive type resembles hydropyonephrosis.

Adolescent↗
PubMed1977

[Urographic evaluation of Vx2 kidney carcinoma and control implantation in rabbits].

The development of Vx2 carcinoma induced in the kidney of rabbits was followed by urography. First the X-ray anatomy of the renal pelvis in the rabbit is described, pointing out the differences against the human pattern. Urography is easy to carry out and to evaluate, and it revealed some sign of the turnover in 75,6% of the cases in the third week and in 100% after 21 days. The radiological symptoms are described and classified. These symptoms are not specific but call attention to the progress of carcinoma.

Animals↗
PubMed1977

[Modified impregnation method for staining apical dendrite and spine (modified Golgi's method)].

A silver impregnation method for the demonstration of apical dendrites and spines in materials long preserved in folmalin is reported. This method is a modified version of Golgi's Silver method and consists of the following procedures: The formalin-fixed tissue blocks were incubated in a solution containing 3% potassium bichromate (150 ml), 96% ethyl alcohol (50 ml), and concentrated acetic acid (50 ml) for 24 hrs. at 37 degrees C, and 4 more days at room temperature after changing the solution twice. The tissue blocks were then kept for 5 days at room temperature in a 5% potassium bichromate solution. After making a thorough rinsing for one day in tap water and three washings in distilled water, the blocks were impregnated for 1/2 to 1 hr. in a 0.5% AgNO3 solution, for a further 4 days at room temperature in a 1% AgNO3 solution, washed three times briefly in distilled water and again impregnated for 4 to 5 days in a 2% AgNO3 solution. Following a thorough rinsing in distilled water the tissue blocks were embedded in paraffin and 50 to 100 micron sections were prepared.

Animals↗
PubMed1976

The angiographic appearance of renal angiomyolipoma and problems of its preoperative diagnosis.

The radiodiagnostic difficulties of renal hamartoma (renal angiomyolipoma) have been discussed in connection with the authors' two cases. In the first case a unifocal cystic renal angiomyolipoma without tuberous sclerosis caused retroperitoneal haematoma and acute symptoms. In the second case a preoperative tentative diagnosis of angiomyolipoma was made, however, the Pringle-type dermal lesions were only observed 6 months after surgery on control examination. The authors state that the radiographic functional findings vary depending on the tissue structure of the tumour. Differential diagnosis of cystic angiomyolipoma containing little fatty and angiomatous tissue is impossible, whereas for the hypervascular variant a tentative diagnosis can be established even in the case of unifocal hamartoma.

Adult↗