title: [Malignant infantile osteopetrosis revealed by choanal atresia: A case report].
abstract: Malignant infantile osteopetrosis is a rare genetic disease characterized by increased bone density due to osteoclastic dysfunction. We report on the case of a 3-month-old girl who was referred to our hospital by the ENT department for severe anemia in the context of bilateral choanal atresia. Clinical examination showed failure to thrive, anemia, respiratory distress, bilateral choanal atresia, and chest deformation. The abdomen was soft with large hepatosplenomegaly. We noted a lack of eye tracking, no optical-visual reflexes, and left nerve facial paralysis. The blood count showed normocytic normochromic anemia with severe thrombocytopenia. The infectious work-up and blood smears were negative. The skeleton X-ray showed diffuse bone densification of the skull, long bones, pelvis, vertebrae, and ribs. The facial bone CT confirmed membranous choanal atresia. The molecular biology search for the TCIRG1 gene mutation was not available. The patient had supportive treatment (transfusion, oral steroid, vitamin D, oxygen, nutrition). Bone marrow transplantation was indicated but not available. She died at 6 months in a context of severe anemia and bleeding. Malignant infantile osteopetrosis is rare and symptoms are nonspecific. Diagnosis should be considered in young infants presenting refractory anemia, particularly in the context of choanal atresia. Bone marrow transplantation remains the only curative treatment.
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal. Electronic address: docteuridy@hotmail.com.
authors.forename: I D
authors.initials: ID
authors.lastname: Ba
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: A
authors.initials: A
authors.lastname: Ba
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: A
authors.initials: A
authors.lastname: Thiongane
authors.affiliation: Service de radiologie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: A
authors.initials: A
authors.lastname: Ly/Ba
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: M
authors.initials: M
authors.lastname: Ba
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: M
authors.initials: M
authors.lastname: Fattah
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: P M
authors.initials: PM
authors.lastname: Faye
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: D F
authors.initials: DF
authors.lastname: Cissé
authors.affiliation: Service de pédiatrie, centre hospitalier national d'enfants Albert-Royer, Dakar, Sénégal.
authors.forename: F N
authors.initials: FN
authors.lastname: Diouf
mesh_terms: D000740:Anemia / Q000209:etiology / Q000628:therapy; D001803:Blood Transfusion / Q000379:methods; D050071:Bone Density Conservation Agents; D002754:Choanal Atresia / Q000175:diagnosis* / Q000209:etiology*; D005158:Facial Paralysis / Q000209:etiology; D017809:Fatal Outcome; D005260:Female; D005938:Glucocorticoids / Q000627:therapeutic use; D006470:Hemorrhage / Q000209:etiology; D006529:Hepatomegaly / Q000209:etiology; D006801:Humans; D006931:Hyperbaric Oxygenation / Q000379:methods; D007223:Infant; D010022:Osteopetrosis / Q000150:complications* / Q000175:diagnosis* / Q000235:genetics / Q000628:therapy; D013163:Splenomegaly / Q000209:etiology; D013921:Thrombocytopenia / Q000209:etiology / Q000628:therapy; D014807:Vitamin D / Q000627:therapeutic use
chemical_list: D050071:Bone Density Conservation Agents; D005938:Glucocorticoids; D014807:Vitamin D