Kallmann syndrome is a rare genetic disorder marked by hypogonadotropic hypogonadism (HH) and anosmia, affecting 1 in 50,000 females. It is due to a defect of gonadotropin-releasing hormone (GnRH)-secreting neurons migration from the nasal olfactory epithelium to the basal hypothalamus. Non-reproductive, non-olfactory symptoms can also be present, depending on the genetic form of disease. The management includes hormone replacement therapy and fertility treatment. We report a case of Kallmann syndrome in an 18-year girl who presented with primary amenorrhea with poor, secondary sexual characteristics' development, poor sense of smell and syndactyly. The plasma levels of luteinising hormone, follicle stimulating hormone, and estradiol were very low, while chromosome analysis showed 46, XX karyotype. Pelvic MRI confirmed the presence of uterus and ovaries. MRI of brain was normal. Treatment was started with cyclic conjugated estrogen and progestin with good response. She is now on regular follow-up to monitor treatment.
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http://dx.doi.org/10.29271/jcpsp.2019.12.S101 | DOI Listing |
Spec Care Dentist
January 2025
Department of Oral and Maxillofacial Pathology, School of Dentistry, Universidade de Pernambuco, Recife, Pernambuco, Brazil.
Aims: Kallmann syndrome (KS) is a rare genetic disorder characterized by congenital hypogonadotropic hypogonadism and varied clinical features. Despite its recognition, the oral and maxillofacial manifestations remain poorly understood. This study synthesized clinical aspects and management of KS-related oral and maxillofacial alterations.
View Article and Find Full Text PDFIntroduction And Objectives: Isolated hypogonadotropic hypogonadism (IHH) may be associated with pituitary gland and olfactory system disorders. We aimed to correlate findings of magnetic resonance imaging (MRI) of the pituitary gland and olfactory system in IHH patients with the patients' olfactory phenotype.
Patients And Methods: The present research was a single-center retrospective case-control study.
J Pediatr Endocrinol Metab
December 2024
Department of Pediatrics, Division of Endocrinology and Diabetes/The Ohio State University/Nationwide Children's Hospital, Columbus, OH, USA.
Background: Kallmann syndrome (KS) is a rare genetic disorder marked by hypogonadotropic hypogonadism and either anosmia or hyposmia. It exhibits genetic heterogeneity, with mutations identified in only 30 % of cases, involving various genes such as KAL1, FGFR1, FGF8, CHD7, and SOX10. Here, we present a case of gonadotropin deficiency associated with KS, observed in both a mother and her daughter, the latter conceived through assisted reproductive technology using the mother's ovum.
View Article and Find Full Text PDFJ Clin Endocrinol Metab
December 2024
Centre for Endocrinology, William Harvey Research Institute, Queen Mary University of London, London, UK.
Context: Congenital hypogonadotropic hypogonadism (CHH) is defined as an isolated deficiency of gonadotropin hormones. Mini-puberty, a transient postnatal activation of the hypothalamic-pituitary-gonadal axis in healthy infants, provides a window of opportunity to diagnose and treat CHH. Currently, in male infants with CHH, testosterone is used to increase phallus size.
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