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The morphology of abdominal and inguinal cryptorchid testes in stallions: a light and electron microscopic study.
Int J Fertil 1991 Jan-Feb; 36(1):57-64IJ

Abstract

Eleven unilateral cryptorchid stallions, two to three years old, were castrated at Louisiana State University Veterinary Teaching Hospital. Five of these cryptorchid cases were abdominal and the rest were inguinal. This study was initiated to document the differences between the abdominal and inguinal equine cryptorchid testes. Specimens were obtained from the abepididymal side of each cryptorchid testes and processed for light and electron microscopic study. The cryptorchid testes were smaller than the scrotal testes, with the abdominal testes being one-fourth the size of the scrotal testes. Two of the abdominal testes had cysts filled with a straw-colored fluid. The seminiferous tubules of the abdominal testes were larger than those in the inguinal testes. The epithelial linings of the seminiferous tubules of the abdominal testes were vacuolated and did not contain more than two layers of undifferentiated cells. The interstitial collagen fibers of the abdominal testes were coarse and more abundant than those of the inguinal testes. The seminiferous tubules of the inguinal testes were smaller and contained many layers of epithelial cells at different stages of embryological differentiation, with scattered primordial germ cells. The necrotic, degenerative changes of the epithelial cells of the abdominal testes were distinct, while the inguinal testes had healthy cells at embryological arrest.

Authors+Show Affiliations

Department of Veterinary Anatomy and Fine Structure, School of Veterinary Medicine, Louisiana State University, Baton Rouge.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

1672678

Citation

al-Bagdadi, F, et al. "The Morphology of Abdominal and Inguinal Cryptorchid Testes in Stallions: a Light and Electron Microscopic Study." International Journal of Fertility, vol. 36, no. 1, 1991, pp. 57-64.
al-Bagdadi F, Hoyt P, Karns P, et al. The morphology of abdominal and inguinal cryptorchid testes in stallions: a light and electron microscopic study. Int J Fertil. 1991;36(1):57-64.
al-Bagdadi, F., Hoyt, P., Karns, P., Martin, G., Memon, M., McClure, R., ... Shoemaker, S. (1991). The morphology of abdominal and inguinal cryptorchid testes in stallions: a light and electron microscopic study. International Journal of Fertility, 36(1), pp. 57-64.
al-Bagdadi F, et al. The Morphology of Abdominal and Inguinal Cryptorchid Testes in Stallions: a Light and Electron Microscopic Study. Int J Fertil. 1991;36(1):57-64. PubMed PMID: 1672678.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The morphology of abdominal and inguinal cryptorchid testes in stallions: a light and electron microscopic study. AU - al-Bagdadi,F, AU - Hoyt,P, AU - Karns,P, AU - Martin,G, AU - Memon,M, AU - McClure,R, AU - McCoy,D, AU - Shoemaker,S, PY - 1991/1/1/pubmed PY - 1991/1/1/medline PY - 1991/1/1/entrez SP - 57 EP - 64 JF - International journal of fertility JO - Int. J. Fertil. VL - 36 IS - 1 N2 - Eleven unilateral cryptorchid stallions, two to three years old, were castrated at Louisiana State University Veterinary Teaching Hospital. Five of these cryptorchid cases were abdominal and the rest were inguinal. This study was initiated to document the differences between the abdominal and inguinal equine cryptorchid testes. Specimens were obtained from the abepididymal side of each cryptorchid testes and processed for light and electron microscopic study. The cryptorchid testes were smaller than the scrotal testes, with the abdominal testes being one-fourth the size of the scrotal testes. Two of the abdominal testes had cysts filled with a straw-colored fluid. The seminiferous tubules of the abdominal testes were larger than those in the inguinal testes. The epithelial linings of the seminiferous tubules of the abdominal testes were vacuolated and did not contain more than two layers of undifferentiated cells. The interstitial collagen fibers of the abdominal testes were coarse and more abundant than those of the inguinal testes. The seminiferous tubules of the inguinal testes were smaller and contained many layers of epithelial cells at different stages of embryological differentiation, with scattered primordial germ cells. The necrotic, degenerative changes of the epithelial cells of the abdominal testes were distinct, while the inguinal testes had healthy cells at embryological arrest. SN - 0020-725X UR - https://www.unboundmedicine.com/medline/citation/1672678/The_morphology_of_abdominal_and_inguinal_cryptorchid_testes_in_stallions:_a_light_and_electron_microscopic_study_ DB - PRIME DP - Unbound Medicine ER -