Unilateral testicular mastocytoma in a Peruvian Paso stallion

James A. Brown, M. A. O'Brien, A. D.J. Hodder, T. Peterson, A. Claes, Irwin Liu, B. A. Ball

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A 12-year-old Peruvian Paso stallion was examined for scrotal swelling and unilateral testicular enlargement of 4-6 weeks duration. Physical examination and ultrasonography of the scrotum revealed an enlarged, nonpainful right testis with a well encapsulated mass at the cranial-medial aspect containing echodense flocculent material. Unilateral castration was performed and the testis, spermatic cord and vaginal tunic were submitted for histological examination, which revealed a mastocytoma with accompanying evidence of malignancy. Short-term follow-up examination did not reveal any evidence of abdominal metastasis and the stallion has since successfully achieved pregnancy in a small number of mares. Although considered rare, mast cell neoplasia should be considered as a differential diagnosis when unilateral testicular enlargement is encountered.

Original languageEnglish (US)
Pages (from-to)172-175
Number of pages4
JournalEquine Veterinary Education
Volume20
Issue number4
DOIs
StatePublished - Apr 1 2008

Fingerprint

Mastocytoma
stallions
Testis
testes
spermatic cord
Spermatic Cord
scrotum
Scrotum
Castration
mast cells
castration
Mast Cells
metastasis
ultrasonography
clinical examination
mares
Physical Examination
Ultrasonography
Neoplasms
Differential Diagnosis

Keywords

  • Horse
  • Mastocytoma
  • Neoplasia
  • Stallion
  • Testis

ASJC Scopus subject areas

  • Equine

Cite this

Brown, J. A., O'Brien, M. A., Hodder, A. D. J., Peterson, T., Claes, A., Liu, I., & Ball, B. A. (2008). Unilateral testicular mastocytoma in a Peruvian Paso stallion. Equine Veterinary Education, 20(4), 172-175. https://doi.org/10.2746/095777308X291741

Unilateral testicular mastocytoma in a Peruvian Paso stallion. / Brown, James A.; O'Brien, M. A.; Hodder, A. D.J.; Peterson, T.; Claes, A.; Liu, Irwin; Ball, B. A.

In: Equine Veterinary Education, Vol. 20, No. 4, 01.04.2008, p. 172-175.

Research output: Contribution to journalArticle

Brown, JA, O'Brien, MA, Hodder, ADJ, Peterson, T, Claes, A, Liu, I & Ball, BA 2008, 'Unilateral testicular mastocytoma in a Peruvian Paso stallion', Equine Veterinary Education, vol. 20, no. 4, pp. 172-175. https://doi.org/10.2746/095777308X291741
Brown JA, O'Brien MA, Hodder ADJ, Peterson T, Claes A, Liu I et al. Unilateral testicular mastocytoma in a Peruvian Paso stallion. Equine Veterinary Education. 2008 Apr 1;20(4):172-175. https://doi.org/10.2746/095777308X291741
Brown, James A. ; O'Brien, M. A. ; Hodder, A. D.J. ; Peterson, T. ; Claes, A. ; Liu, Irwin ; Ball, B. A. / Unilateral testicular mastocytoma in a Peruvian Paso stallion. In: Equine Veterinary Education. 2008 ; Vol. 20, No. 4. pp. 172-175.
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