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Published on: December 12, 2025
Clinical and pathological features of ascending testis
Tatsuyuki Yoshida1, Koichi Ohno, Yoshiki Morotomi
1Department of Cardiovascular Surgery, Osaka City University, Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan. a102103@mail.goo.ne.jp
Osaka City Medical Journal
|January 22, 2010
Summary
Ascending Testis (AT) is a rare condition affecting 2.2% of Congenital Undescended Testis (CUDT) cases. Early orchidopexy is recommended due to histological damage similar to CUDT.
Area of Science:
- Pediatric Surgery
- Urology
- Developmental Biology
Background:
- Ascending Testis (AT) presents controversial clinical features and surgical principles.
- This study focuses on AT cases meeting specific treatment guidelines.
Purpose of the Study:
- To investigate the clinical features and surgical principles of Ascending Testis (AT).
- To determine the prevalence of AT among Congenital Undescended Testis (CUDT) cases.
- To compare testicular parameters between AT and CUDT patients.
Main Methods:
- Retrospective review of 12 AT and 530 CUDT patient medical charts.
- Analysis of AT prevalence, laterality, associated disorders, and clinical course.
- Comparison of testicular volume (TV), mean tubular diameter (MTD), and testicular fertility index (TFI).
Main Results:
- AT constitutes 2.2% of CUDT cases, with a higher incidence of left-sided and bilateral occurrences.
- 8 out of 12 AT patients had associated disorders.
- No significant differences in TV, MTD, or TFI were observed between the AT and CUDT groups.
Conclusions:
- Ascending Testis is rare, predominantly left-sided, and often associated with other disorders.
- Histological damage in AT is comparable to CUDT.
- Immediate orchidopexy is advised upon diagnosis for Ascending Testis.
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