" /> Brachyolmia type 4 with mild epiphyseal and metaphyseal changes - CISMeF





Preferred Label : Brachyolmia type 4 with mild epiphyseal and metaphyseal changes;

Symbol : BCYM4;

CISMeF acronym : BCYM4;

Type : Phenotype, molecular basis known;

Alternative titles and symbols : Spondylodysplasia and premature pubarche; Semd, pakistani type; Spondyloepimetaphyseal dysplasia, pakistani type;

Description : This form of brachyolmia, here designated brachyolmia type 4, is characterized by short-trunk stature with normal intelligence and facies. The radiographic features include rectangular vertebral bodies with irregular endplates and narrow intervertebral discs, precocious calcification of rib cartilages, short femoral neck, mildly shortened metacarpals, and mild epiphyseal and metaphyseal changes of the tubular bones (summary by Miyake et al., 2012).;

Inheritance : Autosomal recessive;

Molecular basis : Caused by mutation in the 3-prime-phosphoadenosine 5-prime-phosphosulfate synthase 2 gene (PAPSS2, 603005.0001);

Laboratory abnormalities : Elevated androstenedione and testosterone; DHEA sulfotransferase below limit of detection; Dehydroepiandrosterone (DHEA) at upper level of normal range;

Prefixed ID : #612847;

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03/05/2025


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