Sandrine Marlin1, Sandra Chantot-Bastaraud, Albert David, Natalie Loundon, Laurence Jonard, Marie-France Portnoï, Crystel Bonnet, Malek Louha, Souad Gherbi, Eréa Noël Garabedian, Remy Couderc, Françoise Denoyelle. 1. *Centre de référence des surdités génétiques, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris; †Service de Génétique médicale, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris; ‡INSERM UMRS1120; §Département de génétique et d'embryologie médicales, INSERM U933, Hôpital Armand Trousseau, Assistance Publique Hôpitaux de Paris, Paris; ∥Département de génétique clinique, CHU de Nantes; ¶Service d'ORL pédiatrique, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris; #Laboratoire de Génétique moléculaire, Hôpital Necker-Enfants Malades, Assistance Publique Hôpitaux de Paris; **Institut de la Vision; ††UPMC, Université Pierre et Marie Curie, Paris 6; and ‡‡Laboratoire de biochimie et biologie moléculaire, Hôpital Trousseau, Assistance Publique Hôpitaux de Paris, Paris, France.
Abstract
OBJECTIVES: Kallmann syndrome (KS) usually combines an anosmia and a hypogonadotrophic hypogonadism. Hearing impairment was described in a few cases of KS. Our objective is to describe an unusual presentation of KS in 2 cases and to explore the pattern of inheritance in this family. PATIENTS: Two brothers presented with a sensorineural hearing impairment associated with cryptorchidism and abnormal movements. RESULTS: Genome-wide array analysis identified a large deletion of KAL1 in both patients confirming the diagnosis of Kallmann syndrome. The absence of familial history has been explained by a somatic mosaicism identified in their mother. CONCLUSION: The description of a hearing defect in 2 brothers with Kallmann syndrome allows asserting that deafness is part of the clinical features of this disease and must lead the physician to monitor the hearing function of Kallmann patients.
OBJECTIVES:Kallmann syndrome (KS) usually combines an anosmia and a hypogonadotrophic hypogonadism. Hearing impairment was described in a few cases of KS. Our objective is to describe an unusual presentation of KS in 2 cases and to explore the pattern of inheritance in this family. PATIENTS: Two brothers presented with a sensorineural hearing impairment associated with cryptorchidism and abnormal movements. RESULTS: Genome-wide array analysis identified a large deletion of KAL1 in both patients confirming the diagnosis of Kallmann syndrome. The absence of familial history has been explained by a somatic mosaicism identified in their mother. CONCLUSION: The description of a hearing defect in 2 brothers with Kallmann syndrome allows asserting that deafness is part of the clinical features of this disease and must lead the physician to monitor the hearing function of Kallmann patients.
Authors: Maria I Stamou; Harrison Brand; Mei Wang; Isaac Wong; Margaret F Lippincott; Lacey Plummer; William F Crowley; Michael Talkowski; Stephanie Seminara; Ravikumar Balasubramanian Journal: J Clin Endocrinol Metab Date: 2022-07-14 Impact factor: 6.134