Abstract | AIM: Congenital monorchism is considered a condition in which an initially normal testis has existed but subsequently atrophied and disappeared due to a third trimester catastrophe (presumably torsion). Since inhibin B concentrations appear related to Sertoli and germ cells number, we evaluated pre- and postoperative inhibin B of boys with congenital monorchism to determine whether the well-known hypertrophy of the contralateral testis was reflected in inhibin B concentrations. MATERIALS AND METHODS: Twenty-seven boys consecutively diagnosed with congenital monorchism (median age 12 months) underwent follow-up with reproductive hormones 1 year postoperatively (median age 25 months). The results were compared with inhibin B of 225 boys with congenital nonsyndromic unilateral cryptorchidism, by converting values to multiple of the median (MoM) for age in normal boys. RESULTS: Ten boys (37%) had blind-ending vessels and ductus deferens (vanished testis) and the remaining (63%) had testicular remnants. At the time of diagnostic procedure, monorchid boys did not have significantly lower inhibin B (median 114, range 20-208) than unilateral cryptorchid boys (136, 47-393) (p = 0.27). During follow-up, MoM values of inhibin B increased in monorchid boys (median 0.59 to 0.98) and in unilateral cryptorchid boys (0.69 to 0.89) (both p < 0.0001). Compared with the concentration at surgery, an additional 44% monorchid boys had inhibin B MoM values higher than 1.0, whereas only additional 23% of unilateral cryptorchid boys exhibited such values (p = 0.04). CONCLUSION: Generally, inhibin B MoM values were normalized during follow-up in boys with congenital monorchism, reflecting compensatory hypertrophy within the first 2.5 years of life. The compensatory capacity to increase was better in monorchism than in unilateral cryptorchidism.
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Authors | Simone Hildorf, Erik Clasen-Linde, Dina Cortes, Magdalena Fossum, Jorgen Thorup |
Journal | European journal of pediatric surgery : official journal of Austrian Association of Pediatric Surgery ... [et al] = Zeitschrift fur Kinderchirurgie
(Eur J Pediatr Surg)
Vol. 32
Issue 1
Pg. 34-41
(Feb 2022)
ISSN: 1439-359X [Electronic] United States |
PMID | 34847577
(Publication Type: Journal Article)
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Copyright | Thieme. All rights reserved. |
Chemical References |
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Topics |
- Child, Preschool
- Cryptorchidism
(diagnosis, surgery)
- Humans
- Hypertrophy
- Infant
- Inhibins
- Male
- Testis
(surgery)
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