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

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14:29 - 14:32
S17-2 (PP)
★ IS "COMPENSATORY HYPERTROPHY OF CONTRALATERAL TESTIS" IN
CRYPTORCHIDISM INFLUENCED BY "MINI-PUBERTY"? : A PROSPECTIVE STUDY
Yong Seung LEE1, Hee Seo SON 2, Sang Won HAN2, Young Jae IM2, Sang Woon KIM2, Byung Hoon CHI2, Cho Nyeong
LEE3 and Yoon Hye JI3
1) Yonsei University College of Medicine, Department of Urology, Seoul, KOREA (REPUBLIC OF) - 2) Yonsei University
College of Medicine, Department of Urology and Urological Science Institute, Seoul, KOREA (REPUBLIC OF) - 3)
Severance Children's Hospital, Department of Pediatric Urology, Seoul, KOREA (REPUBLIC OF)
PURPOSE
Compensatory hypertrophy of contralateral testes (CHCT) can be observed in unilateral cryptorchidism especially in case
of atrophied testis. It is a predictive factor for the existence of viable affected testis in non-palpable testis patients.
However, during infant period, there is fluctuation of testicular size by the effect of mini-puberty. We performed
prospective analysis whether the CHCT also exists in this period and, whether the predictable hypertrophy is obscured
by mini-puberty.
MATERIAL AND METHODS
Total 80 testes at their age of 6-18 months were divided into 3 groups; contralateral 23 testes of atrophied testes
(Group1), 23 contralateral testes of undescended testes (Group 2), and 34 testes of 17 normal children (Group 3). The
testicular size measured with ultrasonography was compared among groups. We also evaluated the variation of
testicular size with age, by subdividing each group with 6-10, 10-14, and 14-18 months.
RESULTS
In all three periods, the length and volume of Group 1 were greater than that of Group 2; In each group, the difference
was statistically significant, except the volume difference in the 10-14 months age group. In terms of infantile testicular
size change with time, there were no variation in length or volume with age, in Group 1 and 2. However, fluctuations of
length and volume were observed in Group 3; the greatest values were found during 6-10 months in both length
(p=0.014) and volume (p=0.066).
CONCLUSIONS
This prospective study showed that the CHCT is valuable factor predicting non-viable testis, even in mini-puberty period.
The effect of mini-puberty was observed not in atrophied or undescended testes, but only in normal testes.