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Spondyloepiphyseal dysplasia tarda, autosomal dominant

MedGen UID:
355785
Concept ID:
C1866717
Disease or Syndrome
Synonym: Spondyloepiphyseal Dysplasia Tarda, Autosomal Dominant
 
Monarch Initiative: MONDO:0008474
OMIM®: 184100

Definition

Autosomal domiant spondyloepiphyseal dysplasia tarda (autosomal dominant SEDT) is an inherited condition that affects bone growth. Signs and symptoms are generally physically apparent by puberty; however, abnormalities may be seen on X-ray at an earlier age. Affected people may have skeletal abnormalities, short stature (with a short neck and trunk, specifically), scoliosis, kyphosis, lumbar hyperlordosis (exaggerated curvature of the lower back), and early-onset progressive osteoarthritis of the hips and knees. Some cases of autosomal dominant SEDT may be caused by changes (mutations) in the COL2A1 gene. As the name suggests, the condition is inherited in an autosomal dominant manner. Treatment is based on the signs and symptoms present in each person and may include surgery and pain management strategies. [from MONDO]

Clinical features

From HPO
Knee pain
MedGen UID:
65421
Concept ID:
C0231749
Sign or Symptom
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the knee.
Hip pain
MedGen UID:
1643075
Concept ID:
C4551516
Sign or Symptom
An unpleasant sensation characterized by physical discomfort (such as pricking, throbbing, or aching) localized to the hip.
Arthritis
MedGen UID:
2043
Concept ID:
C0003864
Disease or Syndrome
Inflammation of a joint.
Spondyloepiphyseal dysplasia
MedGen UID:
20916
Concept ID:
C0038015
Finding
A disorder of bone growth affecting the vertebrae and the ends of the long bones (epiphyses).
Pectus carinatum
MedGen UID:
57643
Concept ID:
C0158731
Finding
A deformity of the chest caused by overgrowth of the ribs and characterized by protrusion of the sternum.
Barrel-shaped chest
MedGen UID:
120497
Concept ID:
C0264172
Finding
A rounded, bulging chest that resembles the shape of a barrel. That is, there is an increased anteroposterior diameter and usually some degree of kyphosis.
Kyphoscoliosis
MedGen UID:
154361
Concept ID:
C0575158
Anatomical Abnormality
An abnormal curvature of the spine in both a coronal (lateral) and sagittal (back-to-front) plane.
Lumbar hyperlordosis
MedGen UID:
263149
Concept ID:
C1184923
Finding
An abnormal accentuation of the inward curvature of the spine in the lumbar region.
Legg-Calve-Perthes disease
MedGen UID:
730669
Concept ID:
C1442965
Disease or Syndrome
Legg-Calve-Perthes disease (LCPD) is characterized by loss of circulation to the femoral head, resulting in avascular necrosis in a growing child. Clinical pictures of the disease vary, depending on the phase of disease progression through ischemia, revascularization, fracture and collapse, and repair and remodeling of the bone. The disease occurs more frequently in boys, and most patients tend to be shorter than their peers. Both familial and isolated cases of LCPD have been reported (summary by Chen et al., 2004).
Irregular vertebral endplates
MedGen UID:
331233
Concept ID:
C1842153
Finding
An irregular surface of the vertebral end plates, which are normally relatively smooth.
Platyspondyly
MedGen UID:
335010
Concept ID:
C1844704
Finding
A flattened vertebral body shape with reduced distance between the vertebral endplates.
Odontoid hypoplasia
MedGen UID:
339524
Concept ID:
C1846439
Finding
The odontoid process, or dens, is a bony projection from the axis (C2) upward into the ring of the atlas (C1) at the top of the spine. During embryogenesis, the body of the odontoid derives from the centrum of the atlas and separates from the atlas, fusing with the superior portion of the axis. If the odontoid is hypoplastic or absent, the attachments for the apical and alar ligaments are missing, allowing for excessive rotation of the atlas, craniocervical instability, and possibly cord compression (summary by Stevens et al., 2009).
Cervical subluxation
MedGen UID:
375973
Concept ID:
C1846798
Finding
A partial dislocation of one or more intervertebral joints in the cervical vertebral column.
Malar flattening
MedGen UID:
347616
Concept ID:
C1858085
Finding
Underdevelopment of the malar prominence of the jugal bone (zygomatic bone in mammals), appreciated in profile, frontal view, and/or by palpation.
Childhood-onset short-trunk short stature
MedGen UID:
460184
Concept ID:
C3148833
Finding
A type of disproportionate short stature characterized by a short trunk but a average-sized limbs with onset in childhood.
Short neck
MedGen UID:
99267
Concept ID:
C0521525
Finding
Diminished length of the neck.

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