Molecular syndromology · 2022
A Boy with Sandestig-Stefanova Syndrome and Genital Abnormalities.
Клинический случайСтатьяНазвание и аннотация: Перевод в очереди
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Korulmaz Ali, Başer Burak, Alakaya Mehmet, Arslanköylü Ali Ertuğ
Аннотация
INTRODUCTION: Sandestig-Stefanova syndrome is an autosomal recessive developmental syndrome characterized by microcephaly, trigonocephaly, congenital cataracts, microphthalmia, facial findings, camptodactyly, periventricular white matter loss, thin corpus callosum, delayed myelination, and poor prognosis. This syndrome is caused by biallelic loss-of-function mutations in the NUP188 gene.
CASE PRESENTATION: In the physical examination of our patient, whose mother and father were third-degree relatives, hypotonia, bilateral congenital cataracts, ambiguous genitalia, hypospadias, undescended testis, and facial dysmorphic findings (hypertelorism, high palate, micrognathia, microphthalmia, low-set ears) were detected.
DISCUSSION: In our patient, a homozygous c.1087C>T (p.Gln363Ter) variant was detected in exon 11 of the NUP188 (NM_015354.3) gene. The mother and father were found to be heterozygous carriers of this variant. All patients with the diagnosis of Sandestig-Stevanova syndrome reported in the literature are female. Our patient is the first male patient reported with this syndrome. In addition, immunodeficiency, congenital hypothyroidism, biotinidase deficiency, undescended testis, hypospadias, and ambiguous genitalia are defined for the first time in this syndrome. Our patient is the first case of Sandestig-Stefanova syndrome reported from Turkey. In this study, Sandestig-Stefanova syndrome with a novel pathogenic NUP188 gene variant is presented.
CASE PRESENTATION: In the physical examination of our patient, whose mother and father were third-degree relatives, hypotonia, bilateral congenital cataracts, ambiguous genitalia, hypospadias, undescended testis, and facial dysmorphic findings (hypertelorism, high palate, micrognathia, microphthalmia, low-set ears) were detected.
DISCUSSION: In our patient, a homozygous c.1087C>T (p.Gln363Ter) variant was detected in exon 11 of the NUP188 (NM_015354.3) gene. The mother and father were found to be heterozygous carriers of this variant. All patients with the diagnosis of Sandestig-Stevanova syndrome reported in the literature are female. Our patient is the first male patient reported with this syndrome. In addition, immunodeficiency, congenital hypothyroidism, biotinidase deficiency, undescended testis, hypospadias, and ambiguous genitalia are defined for the first time in this syndrome. Our patient is the first case of Sandestig-Stefanova syndrome reported from Turkey. In this study, Sandestig-Stefanova syndrome with a novel pathogenic NUP188 gene variant is presented.