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Titolo:
ANALYSIS OF TESTICULAR MIGRATION DURING THE FETAL PERIOD IN HUMANS
Autore:
SAMPAIO FJB; FAVORITO LA;
Indirizzi:
CAIXA POSTAL 46 503 BR-20562970 RIO JANEIRO RJ BRAZIL STATE UNIV RIO DE JANEIRO,UROGENITAL RES UNIT RIO JANEIRO BRAZIL
Titolo Testata:
The Journal of urology
fascicolo: 2, volume: 159, anno: 1998,
pagine: 540 - 542
SICI:
0022-5347(1998)159:2<540:AOTMDT>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOOT LENGTH; EPIDIDYMAL ANOMALIES; 2ND TRIMESTER; KIDNEY VOLUME; DESCENT; AGE; CRYPTORCHIDISM; MALDESCENT; HYDROCELE; GESTATION;
Keywords:
TESTIS; FETUS; ANATOMY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
25
Recensione:
Indirizzi per estratti:
Citazione:
F.J.B. Sampaio e L.A. Favorito, "ANALYSIS OF TESTICULAR MIGRATION DURING THE FETAL PERIOD IN HUMANS", The Journal of urology, 159(2), 1998, pp. 540-542

Abstract

Purpose: We present an analysis concerning the testicular migration and its position correlated to body weight, crown-romp length and gestational age during the fetal period in humans without congenital abnormalities. Materials and Methods: We studied bilaterally 142 testes taken from 71 fresh human fetuses between 10 and 35 weeks after conception. The fetuses were also evaluated in regard to crown-rump length and body weight. The position of the testes was correlated to the fetal parameters. Results: In 37 fetuses (74 testes) at 10 to 23 weeks after conception only 7 testes (9.45%) had migrated from the abdomen and were situated in the inguinal canal, in 19 fetuses (38 testes) at 24 to 26 weeks after conception 22 testes (57.9%) had migrated from the abdomenand in 9 fetuses (18 testes) at 27 to 29 weeks after conception only 3 testes (16.7%) had not descended to the scrotum. The testes had not descended into the scrotum in any fetus weighing 990 gm. or less and with a crown-rump length of 24.5 cm. or less. On the other hand, in allfetuses weighing more than 1,220 gm. and with a crown-rump length of more than 27.5 cm. the testis was in the scrotum. Conclusions: Until 23 weeks after conception the majority of testes remain in the abdomen. The more intense migration of the testes through the inguinal canal occurred between 21 and 25 weeks after conception. After 30 weeks afterconception all testes were descended to the scrotum in all fetuses.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 31/03/20 alle ore 05:14:07