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Spondyloepimetaphyseal dysplasia

MedGen UID:
609408
Concept ID:
C0432211
Disease or Syndrome
Synonyms: SEMD; spondylo-epi-(meta)-physeal dysplasia; Spondyloepimetaphyseal disorder; spondyloepimetaphyseal dysplasia
SNOMED CT: Spondyloepimetaphyseal dysplasia (254062008); Spondyloepimetaphyseal disorder (254062008)
 
HPO: HP:0002651
Monarch Initiative: MONDO:0100510

Definition

An osteochondrodysplasia that results in abnormalities of bone growth in the vertebral column, epiphysis, and metaphysis. [from MONDO]

Term Hierarchy

CClinical test,  RResearch test,  OOMIM,  GGeneReviews,  VClinVar  
  • CROGVSpondyloepimetaphyseal dysplasia

Conditions with this feature

Autosomal recessive spondyloepimetaphyseal dysplasia
MedGen UID:
98476
Concept ID:
C0432213
Disease or Syndrome
Syndrome with characteristics of disproportionate short-trunked short stature, pectus carinatum, short arms, short and broad hands, short metatarsals, flat and broad feet, coxa vara, genu valgum, osteoarthritis, arthrosis and moderate-to-serious gait impairment. The syndrome has been described among Venezuelan Indians of the Yukpa (Irapa) tribe and three siblings from a Mexican mestizo family. Autosomal recessive inheritance has been suggested, but the causative gene has not yet been identified.
Spondyloepimetaphyseal dysplasia, Strudwick type
MedGen UID:
147134
Concept ID:
C0700635
Finding
The Strudwick type of spondyloepimetaphyseal dysplasia (SEMD) is characterized by disproportionate short stature, pectus carinatum, and scoliosis, as well as dappled metaphyses (summary by Tiller et al., 1995).
Sponastrime dysplasia
MedGen UID:
266247
Concept ID:
C1300260
Disease or Syndrome
Sponastrime dysplasia is an autosomal recessive spondyloepimetaphyseal dysplasia (SEMD) named for characteristic clinical and radiographic findings, including spine (spondylar) abnormalities, midface hypoplasia with a depressed nasal bridge, and striation of the metaphyses. Additional features include disproportionate short stature with exaggerated lumbar lordosis, scoliosis, coxa vara, limited elbow extension, small dysplastic epiphyses, childhood cataracts, short dental roots, and hypogammaglobulinemia. Radiographically, the abnormalities of the lumbar vertebral bodies are suggested to be the most specific finding because the characteristic metaphyseal striations may not be apparent at young ages. Striking clinical variability in presentation, severity, and associated features has been observed (summary by Burrage et al., 2019).
Spondyloepimetaphyseal dysplasia, matrilin-3 type
MedGen UID:
325181
Concept ID:
C1837481
Disease or Syndrome
The Borochowitz-Cormier-Daire type of spondyloepimetaphyseal dysplasia (SEMDBCD) is a rare type of autosomal recessive short-limb short-trunk dwarfism. Affected individuals have significant short stature with pronounced leg bowing, lumbar lordosis, and a waddling gait (summary by Borochowitz et al., 2004 and Shyamasundar et al., 2020).
Spondyloepimetaphyseal dysplasia, Bieganski type
MedGen UID:
335350
Concept ID:
C1846148
Disease or Syndrome
X-linked spondyloepimetaphyseal dysplasia with hypomyelinating leukodystrophy (SEMDHL) is an X-linked recessive developmental disorder characterized by slowly progressive skeletal and neurologic abnormalities, including short stature, large and deformed joints, significant motor impairment, visual defects, and sometimes cognitive deficits. Affected individuals typically have normal early development in the first year or so of life, followed by development regression and the development of symptoms. Brain imaging shows white matter abnormalities consistent with hypomyelinating leukodystrophy (summary by Miyake et al., 2017).
X-linked spondyloepimetaphyseal dysplasia
MedGen UID:
376281
Concept ID:
C1848097
Disease or Syndrome
X-linked spondyloepimetaphyseal dysplasia (SEMDX) is characterized by anomalies of the spine and the epiphyses and metaphyses of the long bones, resulting in short stature and osteoarthritic changes of the joints. Patients with SEMDX show rhizomelic shortening of the limbs and short limb-to-trunk ratio, significant bowing of the legs, waddling gait with lumbar lordosis, and brachydactyly (Cho et al., 2016).
Spondyloepimetaphyseal dysplasia-short limb-abnormal calcification syndrome
MedGen UID:
338595
Concept ID:
C1849011
Disease or Syndrome
Spondylometaepiphyseal dysplasia, short limb-hand type is an autosomal recessive disorder with clinical and radiologic features of disproportionate short stature, platyspondyly, abnormal epiphyses and metaphyses, shortening of the lower and upper limbs, short and broad fingers, and premature calcifications. The disorder is progressive with respect to the severity of the bowing of the lower limbs and the appearance of calcifications, with some patients being wheelchair-bound from age 11 years (Bargal et al., 2009).
Spondyloepimetaphyseal dysplasia with multiple dislocations
MedGen UID:
350960
Concept ID:
C1863732
Disease or Syndrome
Spondyloepimetaphyseal dysplasia with joint laxity type 2 (SEMDJL2) is characterized by short stature, distinctive midface retrusion, progressive knee malalignment (genu valgum and/or varum), generalized ligamentous laxity, and mild spinal deformity. Intellectual development is not impaired. Radiographic characteristics include significantly retarded epiphyseal ossification that evolves into epiphyseal dysplasia and precocious osteoarthritis, metaphyseal irregularities and vertical striations, constricted femoral neck, slender metacarpals and metatarsals, and mild thoracolumbar kyphosis or scoliosis with normal or mild platyspondyly (summary by Min et al., 2011). For a discussion of genetic heterogeneity of SEMD with joint laxity, see SEMDJL1 (271640).
Spondyloepimetaphyseal dysplasia, Genevieve type
MedGen UID:
355314
Concept ID:
C1864872
Disease or Syndrome
Spondyloepiphyseal dysplasia of the Genevieve type (SEMDG) is characterized by infantile-onset severe developmental delay and skeletal dysplasia, including short stature, premature carpal ossification, platyspondyly, longitudinal metaphyseal striations, and small epiphyses (summary by van Karnebeek et al., 2016).
Spondyloepimetaphyseal dysplasia, Shohat type
MedGen UID:
400703
Concept ID:
C1865185
Disease or Syndrome
Shohat-type spondyloepimetaphyseal dysplasia (SEMDSH) is a chondrodysplasia characterized by vertebral, epiphyseal, and metaphyseal abnormalities, including scoliosis with vertebral compression fractures, flattened vertebral bodies, and hypomineralization of long bones. Affected individuals may exhibit a small trunk, short neck, small limbs, joint laxity, bowlegs, and/or abdominal distention with hepatosplenomegaly (summary by Egunsola et al., 2017).
Spondyloepimetaphyseal dysplasia, Missouri type
MedGen UID:
355563
Concept ID:
C1865832
Disease or Syndrome
Disorder with manifestations of moderate-to-severe metaphyseal changes, mild epiphyseal involvement, rhizomelic shortening of the lower limbs with bowing of the femora and/or tibiae, coxa vara, genu varum and pear-shaped vertebrae in childhood. The syndrome has been described in a large Missouri (US) kindred with 14 affected members in 4 generations. Though some spontaneous improvement of the skeletal defects may occur in adolescence, the affected individuals remained shorter than their age-matched unaffected siblings. Predisposition deformities to osteoarthritis have been noted. This condition is caused by mutation in the MMP13 gene (locus 11q22.3) and transmitted in an autosomal dominant manner.
Spondyloepimetaphyseal dysplasia, PAPSS2 type
MedGen UID:
411234
Concept ID:
C2748515
Congenital Abnormality
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).
Spondyloepimetaphyseal dysplasia, aggrecan type
MedGen UID:
411237
Concept ID:
C2748544
Disease or Syndrome
A new form of skeletal dysplasia with manifestations of severe short stature, facial dysmorphism and characteristic radiographic findings. To date, three cases have been described, all originating from the same family. The disease results from a missense mutation affecting the C-type lectin domain of aggrecan (AGC1 gene; chromosome 15) which regulates endochondral ossification. Transmission is autosomal recessive.
Cataract-growth hormone deficiency-sensory neuropathy-sensorineural hearing loss-skeletal dysplasia syndrome
MedGen UID:
863379
Concept ID:
C4014942
Disease or Syndrome
CAGSSS, which comprises cataracts, growth hormone deficiency, sensory neuropathy, sensorineural hearing loss, and skeletal dysplasia, is an autosomal recessive multisystemic disorder with a highly variable phenotypic spectrum. Not all of these features are always present, and almost all the features may present at different times and/or become more apparent with age. The skeletal features are consistent with spondyloepimetaphyseal dysplasia (SEMD) (summary by Vona et al., 2018). One family had a distinctive presentation with infantile-onset intractable seizures and cortical abnormalities reminiscent of Leigh syndrome (see 256000). The correlation between genotype and phenotype remains unclear, but since the IARS2 gene is involved in mitochondrial function, heterogeneous manifestations can be expected (Takezawa et al., 2018).
Spondyloepimetaphyseal dysplasia with joint laxity, type 1, with or without fractures
MedGen UID:
865814
Concept ID:
C4017377
Disease or Syndrome
Any spondyloepimetaphyseal dysplasia with joint laxity in which the cause of the disease is a mutation in the B3GALT6 gene.
Spondyloepimetaphyseal dysplasia with joint laxity, type 3
MedGen UID:
1677378
Concept ID:
C5193073
Disease or Syndrome
Spondyloepimetaphyseal dysplasia with joint laxity-3 (SEMDJL3) is characterized by multiple joint dislocations at birth, severe joint laxity, scoliosis, gracile metacarpals and metatarsals, delayed bone age, and poorly ossified carpal and tarsal bones (Girisha et al., 2016). For a discussion of genetic heterogeneity of SEMD with joint laxity, see SEMDJL1 (271640).

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Recent clinical studies

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