Abstract Book - 26th ESPU Congress, Joint Meeting with ICCS + SPU + AAP/SOU + AAPU + SFU

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14:59 - 15:02
S17-8 (PP)
NON PALPABLE TESTIS: CONTROVERSIAL AUA GUIDELINES
Santiago VALLASCIANI1, Alfredo BERRETTINI1, Dario Guido MINOLI1, Germana BASSI1, Letterio RUNZA 2 and
Gianantonio MANZONI1
1) IRCCS Ca' Granda - Ospedale Maggiore Policinico, Pediatric Urology, Milan, ITALY - 2) IRCCS Ca' Granda - Ospedale
Maggiore Policinico, Anatomopathology Department, Milano, ITALY
PURPOSE
Recent American Urological Association guideline on management of Non Palpable Undescended Testis (NP-UDT)
highlights the need of inguinal exploration when no testis is visualized in the abdomen and normal vessels are seen
entering the inguinal ring. Aim of this study was to collect this subtype of patients and analyze residual tissue after
inguinal exploration.
MATERIAL AND METHODS
From 2010 to 2014, 31 cases of NP-UDT (confirmed under anaesthesia) were managed in our Center. In 13 of them a
viable testis was found and an orchiopexy performed. Intra-abdominal hypo-throphic or athrophic vessels were seen in 7
and no inguinal exploration was carried on. In 11 cases where normal vessels were seen entering the inguinal ring, an
inguinal exploration was performed and residual tissue removed. Specimens were analyzed with Hemathoxilin-eosin,
Masson tricromy and Inmuno-histochemistry for CD117.
RESULTS
Severe fibrosis, absence of tubules, germinal cells and spermatogenesis were seen while ITCGN (Intratubular Testicular
Gonadic Cell Neoplasm) was not present in any sample.
CONCLUSIONS
Our study reveals that in cases of NP-UDT where no testis is visualized in abdomen there is no need for further inguinal
exploration. No atypical ectopia (pre-peritoneal or interstitial) was seen in our series. Even when residual tissue is
present at inguinal level, it does not contain any potential for future malignization. Moreover, reports on orchiectomy for
untreated inguinal testis explored in adulthood revealed similar findings.