What Is Your Diagnosis? Testicular tumor in a horse

Leidinger, E.; Springler, G.; Furman, Erika; Wallner, A.

doi:10.1111/vcp.12577

Cited by 1 publication

(4 citation statements)

References 6 publications

(19 reference statements)

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“…The age of appearance of seminoma can range from 7 [ 7 , 8 ] to 22 years [ 6 ], and both retained [ 12 ] and descended testicles can be affected [ 8 ]. More frequently, this gonadal tumor is reported to be unilateral [ 10 ], although bilateral cases have been described [ 9 ].…”

Section: Discussionmentioning

confidence: 99%

“…The clinical finding of an enlarged non-painful testis should be differentiated from other non-painful lesions, such as hydrocele and hematocele [ 15 ], or other testicular neoplasms, such as sertolioma or leydigoma [ 2 ]. On the other hand, some papers report a preventive hemicastration in the absence of a confirmed diagnosis, to allow gross and microscopic analysis after the removal of the mass [ 7 , 8 , 14 ].…”

Section: Discussionmentioning

confidence: 99%

“…This type of germinal tumor affects horses of 11–22 years [ 6 ], but it is also reported in younger animals [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

“…Although the literature includes many cases of seminoma affecting cryptorchid horses [ 9 , 10 , 11 , 12 ], the neoplasm can also affect descended testes [ 7 , 8 , 13 , 14 , 15 ]; in human medicine, cryptorchidism is found to increase chances of developing seminoma [ 3 ]. Indeed, a correlation between cryptorchidism and the onset of neoplasia has not been proven for horses [ 5 ].…”

Section: Introductionmentioning

confidence: 99%

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Ultrasound Examination of Unilateral Seminoma in a Salernitano Stallion

Giangaspero

Bucci

Signore

et al. 2022

Animals

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An 18-year-old Salernitano stallion developed a progressive enlargement of the left testicle over eight months. An ultrasound evaluation was performed, along with a hormonal profile. A histopathological evaluation of the testis was performed after unilateral orchiectomy. On B-mode ultrasound examination, testicular parenchyma was characterized by the loss of internal structure, with the presence of multiple coalescing, nodular, well-defined and heterogeneous lesions with capsule deformity, appearing with an irregular profile. On dissection, the testicular parenchyma bulged over the cut section, confirming the increase in size. Microscopically, the lesion consisted mainly of large, densely packed, polygonal-to-round-shaped neoplastic cells. Mitotic figures were plentiful and frequently atypical; further microscopic features included apoptosis and necrosis. At immunohistochemistry, the entire neoplasm showed strong and diffuse immunolabeling for vimentin, while CD117-specific immunoreactivity was only observed in scattered clusters of neoplastic cells. Based on the gross, microscopic and IHC findings, a diagnosis of diffuse seminoma was made. Three months later, a follow-up examination showed no evidence of recurrence and the preservation of reproductive abilities. The case presented shows an unusual ultrasonographic pattern for seminoma and the basis of the correlation between the characteristics of the sonoelastographic examination and histological diagnosis.

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