NEPHRO-UROLOGY

NU02001 ULTRASOUND DIFFERENTIATION OF ANGIOMYOLIPOMA (AML) FROM RENAL CELL CARCINOMA (RCC)

Biliana B. Diokic, Nenad Markovit, Nebojsa Markovid, Sladjana Petrovic.

Health Service, Depratment of Radiology, NiS, Yugoslavia

Objective: Group of authors has showed an analysis of ultrasound (US) characteristics, which are helpful in differentiation of the AML from RCC.

Material and methods: In the last two years there were reviewed US images of 42 patients with RCC (28 men and 14 women), and 28 patients with AML (19 women and 9 men.) Each patient was examined by transabdominal real-time US. Each tumour was evaluated for size, location, echogenicity, homogenity, hyperchoic rim, and eventually for the presence of intratumoural cysts. US findings have been compared with computed tomography (CT) and pathohistological findings.

Results: AML are smiler and more frequently echogenic than RCC, they are clearly limited, and they do not tend to infiltrate towards its surroundings. Hyperchoic rims and intratumoural cysts have been noticed only at RCC. Presence of fat and soft tissue at AML was proved by CT.

Conclusion: US is significant method which is helpful in differentiation of AML from RCC at hyperechogenic tumour renal masses.

NUO2002 VALUE OF ULTRASONICALLY GUIDE FINE - NEEDLE ASPIRATION CYTOLOGY IN THE RENAL TRANSPLANT FAILURB DISFUNCTlON. Eduardo Rafael Cuvertino. M.D. National Hospital of Clinicas, G5rdob3, Argentina.

We show a serie of 78 patients with post - transplant renal failure in whom were e&ted ultrasonically guide needle biopsy, including fine needle aspiration (for cytology and culture cellular with inmuno- marker) and guided cutting biopsy (for conventional anatomopathologic and inmunofluorescency studies). The comparision shows signs in with the diagnosis of rejection (acute or chromic); acute tubular necrosis, &hernia and infarction; was rapidly continned by fine needle aspiration (3 to 6 hs), letting the rapid rkxcue of the implants, reaching a diagnostic accuracy between the 80 and 93% of the cases. We point out the objetive and technical principles, remarking that guide fine needle aspiration biopsy can provide high specificity and sensivity in differentiating the allograft disfunction, reducing the risks of core biopsy (intrarenal arteriovenous fishala’s; pxudoaneurysm; rupture; urinoma and fistula, hematoma, etc.).

NUO2003 DNA PLOIDY ON BIOPSY FOR RENAL CELL CARCINOMA

Fumiva Hongo*, Wataru Inoue, Koji Okihara, Toshihiko Saito, Makoto Watanabe, Masahito Saitoh”, Hiroki Watanabe Meiji Univ. of Oriental Medicine*, Kyoto, Japan Kyoto Prefectural University of Medicine

DNA content of renal cell carcinoma (RCC) in 39 patients on biopsy specimens and surgical specimens were examined in paraffin blocks with

static cytofluorometry and flow cytometry. Findings of selective renal tumor biopsy guided

by ultrasound for RCC coincided with those of surgical specimen in 27/39 (69%) in cell types, 29/39 (74%) in structural type, 26/39 (67%) in gradings and 27139 (69%) in ploidy patterns.

It was anticipated that the grading of tumor might belong to G2 with a considerable probability,when

the ploidy pattern of biopsy specimen indicated

aneuploidy or polyploidy. It may be concerned that DNA histograms help

the histological diagnosis by biopsy.

NU02201 URETHR09ON-

Rivero++, nra. MarLa @De, carte Oucrrero* "rcthrosonography i* suitable for screemlng cuagnosis Of Urethral rtricture in miction difficultlu, for excluding an iatrogenic of wnqal.ita1 urethra1 dlvecticu1um, an* for control after vrs?thra1 surgery The Inale ureuIra IS the 1dEa1 organ to be studied using UltraBound. Urethrosonoqraphy is a new term that is used to talk about the urethral study in the portion Of penile and bulbous urethra. *t is easy to access and the anat4lllc ChraraCteristLC allows the dudy of this organ. The urethroaon~raphy is made ustng a transducer Of 7.5 to10 MB= lineal. We begin the scan in the dDrSa1 ride with trasmnErsa1 and lineal, through bulbus and Eatus, getting a good diferentatlan of the structures and the image of the urethra like a black tube when the urinal is pasing or When gel i. LntroQlcld. The study was made In 15 patients with an obstruction background, getting only in 3 Of tham the images With

a1terat*.xls on different 1e\rr1s Of the urethra SectIon. The location of the 1c.ic.n and the length 4r.e clearly dcmostrated. The penile urethhm is easily shove" with this unusual m&hod of study. The technique and results from the *tudy Will be discussed.

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