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12q14 microdeletion syndrome
2 associated genes
38 connected diseases
32 signs/symptoms
Disease Type of connection
Buschke-Ollendorff syndrome
Dedifferentiated liposarcoma
Isolated osteopoikilosis
Melorheostosis with osteopoikilosis
Well-differentiated liposarcoma
Heritable pulmonary arterial hypertension
Aneurysm - osteoarthritis syndrome
Familial thoracic aortic aneurysm and aortic dissection
Familial retinoblastoma
Monosomy 13q14
Unilateral retinoblastoma
Anaplastic ependymoma
Acute myeloblastic leukemia with maturation
Acute myeloblastic leukemia without maturation
Acute myelomonocytic leukemia
Acute promyelocytic leukemia
Atypical Werner syndrome
Autosomal codominant severe lipodystrophic laminopathy
Autosomal dominant Emery-Dreifuss muscular dystrophy
Autosomal dominant limb-girdle muscular dystrophy type 1B
Autosomal recessive Emery-Dreifuss muscular dystrophy
Charcot-Marie-Tooth disease type 2B1
Congenital muscular dystrophy due to LMNA mutation
Dilated cardiomyopathy - hypergonadotropic hypogonadism
Familial dilated cardiomyopathy with conduction defect due to LMNA mutation
Familial isolated arrhythmogenic ventricular dysplasia, biventricular form
Familial isolated arrhythmogenic ventricular dysplasia, left dominant form
Familial isolated arrhythmogenic ventricular dysplasia, right dominant form
Familial partial lipodystrophy, Dunnigan type
Familial partial lipodystrophy, Köbberling type
Heart-hand syndrome, Slovenian type
Hutchinson-Gilford progeria syndrome
LMNA-related cardiocutaneous progeria syndrome
Laminopathy type Decaudain-Vigouroux
Left ventricular noncompaction
Lethal restrictive dermopathy
Mandibuloacral dysplasia with type A lipodystrophy
Progeria-associated arthropathy
Synonym(s):
- Del(12)(q14)
- Deletion 12q14
- Monosomy 12q14
- Osteopoikilosis - short stature - intellectual deficit
Classification (Orphanet):
- Rare bone disease
- Rare developmental defect during embryogenesis
- Rare genetic disease
- Rare neurologic disease
Classification (ICD10):
- Congenital malformations, deformations and chromosomal abnormalities -
Epidemiological data:
Class of prevalence: <1 / 1 000 000
Average age onset: childhood
Average age of death: -
Type of inheritance: unknown
External references:
No OMIM references
No MeSH references
Gene symbol UniProt reference OMIM reference
HMGA2 P52926600698
LEMD3 Q9Y2U8607844
Very frequent
- Failure to thrive / difficulties for feeding in infancy / growth delay
- Intellectual deficit / mental / psychomotor retardation / learning disability
- Intrauterine growth retardation
- Short stature / dwarfism / nanism
- Speech troubles / aphasia / dysphasia / echolalia / mutism / logorrhea / dysprosodia

Frequent
- Abnormal pigmentary skin changes / skin pigmentation anomalies
- Dysostosis / chondrodysplasia / osteodysplasia / osteochondrosis / skeletal dysplasia
- Tremor

Occasional
- Agenesis / hypoplasia / aplasia of kidneys
- Anodontia / oligodontia / hypodontia
- Arnold-Chiari anomaly
- Asplenia / polysplenia / spleen lobulation / accessory spleen
- Broad nose / nasal bridge
- Clinodactyly of fifth finger
- Deepset eyes / enophthalmos
- Diabetes mellitus
- Downturned mouth
- Ectopic / horseshoe / fused kidneys
- Frontal bossing / prominent forehead
- High nasal bridge
- Hypotonia
- Intestinal / gut / bowel malrotation
- Micrognathia / retrognathia / micrognathism / retrognathism
- Muscle hypotrophy / atrophy / dystrophy / agenesis / amyotrophy
- Scoliosis
- Small / triangular nares / nostrils
- Subcutaneous nodules / lipomas / tumefaction / swelling
- Synophris / synophrys
- Syringomelia
- Thick / bushy eyebrows
- Thin / retracted lips
- Triangular face