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<p>A 7-month-old, 20-kg male mixed-breed dog with a history of right retained testis was presented to the hospital. Over the past three days, he developed swelling for two days and then hardening in the scrotum, which only included the left testis. Hematological and biochemical analyses revealed mild anemia and elevated urea levels. Ultrasonography examination revealed the left testis to be mildly enlarged, heterogeneous, with abnormal mediastinum, and with an insufficient Doppler signal. On surgical exploration, the left testis was necrotic, dark in color, and twisted clockwise. A left orchiectomy and right cryptorchidectomy were performed. The left testicle showed widespread hemorrhage, vessel dilation, fibrosis, and necrosis, whereas the right testicle lacked spermatogenesis but contained normal Sertoli cells. The dog experienced no post-operative complications and was brought back for a 2.5-month follow-up in good health. This study highlights the rare unilateral right-sided cryptorchidism and intrascrotal torsion of the left testis in a young dog.</p>

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Right-sided cryptorchidism and contralateral intrascrotal testicular torsion in a young dog: a rare case report

  • 期刊论文

  • 发表日期：

    2025年6月21日

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  • Saeed Farzad-Mohajeri,
  • Ramina Khodadadian,
  • Hamidreza Moosavian,
  • Alireza Vajhi,
  • Maryam Mahdipour,
  • Mohamad Amin Saeedi

摘要

A 7-month-old, 20-kg male mixed-breed dog with a history of right retained testis was presented to the hospital. Over the past three days, he developed swelling for two days and then hardening in the scrotum, which only included the left testis. Hematological and biochemical analyses revealed mild anemia and elevated urea levels. Ultrasonography examination revealed the left testis to be mildly enlarged, heterogeneous, with abnormal mediastinum, and with an insufficient Doppler signal. On surgical exploration, the left testis was necrotic, dark in color, and twisted clockwise. A left orchiectomy and right cryptorchidectomy were performed. The left testicle showed widespread hemorrhage, vessel dilation, fibrosis, and necrosis, whereas the right testicle lacked spermatogenesis but contained normal Sertoli cells. The dog experienced no post-operative complications and was brought back for a 2.5-month follow-up in good health. This study highlights the rare unilateral right-sided cryptorchidism and intrascrotal torsion of the left testis in a young dog.