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Testicular hypoplasia in a bull with XX/XY chimerism.
Cornell Vet. 1981 Oct; 71(4):376-82.CV

Abstract

A 4-year-old 1/2 Hereford X Bos indicus bull displayed XX/XY chimerism associated with arrested spermatogenesis. Phenotypic examination revealed underdeveloped dorsal neck muscles, a non-pendulous scrotum, testes firm in consistency and a scrotal circumference measurement of 27 cm. On rectal palpation, small seminal vesicles were present and only azoospermic seminal fluid was collected at 3 monthly electroejaculations. Chromosome analysis on 2 monthly batches of leukocyte cultures showed a mean chimeric ratio of 80% of XX:20% XY cells. Cells cultured from skin were all male. Histopathological examination of both testes revealed reduction in size and number of tubules, marked hypoplastic germinal epithelium showing only spermatogonia and a well defined interstitium with large quantities of collagen. The small size of the testes and histological changes were suggestive of a testicular hypoplasia.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Case Reports
Journal Article

Language

eng

PubMed ID

7318440

Citation

Bongso, T A., et al. "Testicular Hypoplasia in a Bull With XX/XY Chimerism." The Cornell Veterinarian, vol. 71, no. 4, 1981, pp. 376-82.
Bongso TA, Jainudeen MR, Lee JY. Testicular hypoplasia in a bull with XX/XY chimerism. Cornell Vet. 1981;71(4):376-82.
Bongso, T. A., Jainudeen, M. R., & Lee, J. Y. (1981). Testicular hypoplasia in a bull with XX/XY chimerism. The Cornell Veterinarian, 71(4), 376-82.
Bongso TA, Jainudeen MR, Lee JY. Testicular Hypoplasia in a Bull With XX/XY Chimerism. Cornell Vet. 1981;71(4):376-82. PubMed PMID: 7318440.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Testicular hypoplasia in a bull with XX/XY chimerism. AU - Bongso,T A, AU - Jainudeen,M R, AU - Lee,J Y, PY - 1981/10/1/pubmed PY - 1981/10/1/medline PY - 1981/10/1/entrez SP - 376 EP - 82 JF - The Cornell veterinarian JO - Cornell Vet VL - 71 IS - 4 N2 - A 4-year-old 1/2 Hereford X Bos indicus bull displayed XX/XY chimerism associated with arrested spermatogenesis. Phenotypic examination revealed underdeveloped dorsal neck muscles, a non-pendulous scrotum, testes firm in consistency and a scrotal circumference measurement of 27 cm. On rectal palpation, small seminal vesicles were present and only azoospermic seminal fluid was collected at 3 monthly electroejaculations. Chromosome analysis on 2 monthly batches of leukocyte cultures showed a mean chimeric ratio of 80% of XX:20% XY cells. Cells cultured from skin were all male. Histopathological examination of both testes revealed reduction in size and number of tubules, marked hypoplastic germinal epithelium showing only spermatogonia and a well defined interstitium with large quantities of collagen. The small size of the testes and histological changes were suggestive of a testicular hypoplasia. SN - 0010-8901 UR - https://www.unboundmedicine.com/medline/citation/7318440/Testicular_hypoplasia_in_a_bull_with_XX/XY_chimerism_ L2 - http://hdl.handle.net/2027/uc1.b4179407?urlappend=;seq=384 DB - PRIME DP - Unbound Medicine ER -