CC BY 4.0 · Glob Med Genet 2024; 11(03): 220-224
DOI: 10.1055/s-0044-1788060
Case Report

46 XX Ovotesticular Disorder of Sex Development with Gonadotropin-Releasing Hormone Receptor, Autosomal Recessive Heterozygous Missense Mutation and Autosomal Dominant Heterozygous Missense Mutation of the PROKR2 Gene: A Case Report

Francesca Peranzoni
1   Department of Pediatric Surgery, Lausanne University Hospital, Lausanne, Switzerland
,
Roberto De Castro
2   Thien Nhan and Friends Association, Italy
,
Emilio Merlini
3   Department of Pediatric Surgery, Hospital of Alexandria, Italy
,
Yen Le Nguyen
4   Department of Pediatric Urology, Vietnam National Hospital of Pediatric 2, Ho Chi Minh City, Vietnam
› Author Affiliations

Abstract

True hermaphroditism is a disorder of sex development (DSD), accounting for less than 5% of all DSD cases, defined by the simultaneous presence of testicular tissue and ovarian tissue in the same individual. In the reported case, the patient presented two genetic mutations involved in the pathogenic pathway of the DSD condition associated with the clinical features of Kallmann syndrome (KS), a developmental disease that associates hypogonadotropic hypogonadism (HH), due to gonadotropin-releasing hormone deficiency, and anosmia, related to the absence or hypoplasia of the olfactory bulbs. Given the variable degree of hyposmia in KS, the distinction between KS and normosmic idiopathic HH is currently unclear, especially as HH patients do not always undergo detailed olfactory testing. This syndrome is very rare, with an estimated prevalence of 1:80,000 in males and 1:40,000 in females.

This is the only case report concerning a patient with 46 XX true hermaphroditism affected by HH and digenic inheritance of Kallmann syndrome.

Patient Consent

The family of the patient gave written informed consent to publish this article.




Publication History

Article published online:
09 July 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution License, permitting unrestricted use, distribution, and reproduction so long as the original work is properly cited. (https://creativecommons.org/licenses/by/4.0/)

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