Authors: Black, L.D.¹; Nudell, D.M.¹; Cha, I.²; Cherry, A.M.³

Source: Human Reproduction, Volume 15, Number 2, February 2000 , pp. 449-451(3)

Publisher: Oxford University Press

Abstract:

A 40 year old healthy Chinese male with primary infertility was seen in a university male infertility and genetic counselling clinic. He presented with congenital bilateral absence of the vas deferens (CBAVD) and the finding of testis atrophy. Fine needle aspiration mapping of the testis identified and localized sperm production within the testicles for in-vitro fertilization (IVF) and intracytoplasmic sperm injection (ICSI). Careful evaluation of testicular cytology revealed late maturation arrest of spermatogenesis. Cystic fibrosis gene mutation analysis revealed heterozygosity for the 5T variant within the polypyrimidine tract of intron 8. Cytogenetic analysis revealed a pericentric inversion of chromosome 6 with break points at p12 and q21 [46,XY,inv(6)(p12q21)]. This case illustrates that spermatogenesis is not necessarily normal with congenital bilateral absence of the vas deferens. Compound genetic defects may coexist and underlie male infertility.

Keywords: azoospermia; CBAVD; cytogenetic inversion; infertility

Document Type: Research article

Affiliations: 1: Department of Urology, 2: Department of Pathology, University of California San Francisco, 2330 Post Street, 6th Floor, San Francisco, CA 94115–1695 and 3: Department of Clinical Cytogenetics, Stanford University Medical Center, Stanford, California, USA

Publication date: 2000-02-01

More about this publication?

• Human Reproduction features full-length, peer-reviewed papers reporting original research, clinical case histories, as well as opinions and debates on topical issues. Papers published cover the scientific and medical aspects of reproductive physiology and pathology, endocrinology, andrology, gonad function, gametogenesis, fertilization, embryo development, implantation, pregnancy, genetics, genetic diagnosis, oncology, infectious disease, surgery, contraception, infertility treatment, psychology, ethics and social issues. The highest scientific and editorial standard is maintained throughout the journal along with a rapid rate of publication.

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• In this Subject: Anatomy & Physiology ,  Obstetrics & Gynecology
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