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Biomedical subjects

P Kolle

Publications and source records attributed to P Kolle.

At least 19 recordsLinked to original sources

[Possibilities and departure points for quantitative cytologic evaluation of urothelial cells for cancer diagnosis using microscopic procedures and digital image processing].

Examination of exfoliated urothelial cells present in the urine has been shown to be useful by cytologists, but urinary cytology is not yet widely accepted for routine diagnostic purposes. The accuracy of urinary cytology is almost limited to high-grade transitional carcinoma (grade II-III), but is of limited value in the diagnosis of benign papilloma and low-grade tumors (grade I). The sensitivity of cytology would be increased from 50% to 80% by using a computer-based cytophotometric microscope, especially in differentiating grade I tumors.

Cytodiagnosis↗

[The urological indication. Thoughts on the indication for diagnostic and operative measures in urology: (author's transl)].

Taking as examples the three most frequent diseases occurring in hospital and private practice, urolithiasis, prostatic hypertrophy and space-occupying processes of the kidney, the indications and contraindications of diagnostic and therapeutic measures are pointed out. It is found that even in future only a careful history and clinical findings lead to logical and rational use of technical possibilities.

Adenoma↗

[Radiological findings in renal capsular tumors (author's transl)].

Renal capsular tumors are rare. Preoperative diagnostic is based on radiology. Typical urographical findings are marginal impression and dislocation of the entire kidney without deformation of renal pelvis and calices. Angiography is the most decisive method of investigation, especially in malignant mass lesions. These tumors generally have hypovascular neovascularity without puddling. They can be supplied both by capsular and renal, lumbar and intercostal arteries. The renal parenchyma is contrasted homogeneously without defects, the margin is sharply defined. Computer tomography can best demonstrate the extent of the lesion and distinguish it from neighboring organs; in lipomas and cysts even a histological prediction is justified with this method. Preoperative diagnostic accuracy is limited by the fact, that even the pathologist, in some cases, is not able to decide upon the origin of these tumors.

Adult↗