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Table 2 Frequent dysmorphic signs and associated congenital anomalies previously described in the 12p deletion syndrome

From: 12p deletion spectrum syndrome: a new case report reinforces the evidence regarding the potential relationship to autism spectrum disorder and related developmental impairments

Head, face and neck

Thorax and abdomen

Genitals

Miscellaneous

Stenosis of the sagittal sutura

Broad and webbed neck

Facial asymmetry/oval shape

Arched eyebrows

Down slanted palpebral fissures

Short Palpebral fissures

Almond shape palpebral fissures

Epicanthic folds

Sclerocornea

Eyelid coloboma

Large, low set and hyperplastic ears, posteriorly rotated ears Microtia/anotia

Large and flat nasal bridge

Long philtrum

Everted vermillion of the lowe lip

Cleft lip and palate

Hypoplastic mandible

Micrognathia

Broad chin

Hypoplastic teeth and enamel

Hyperplastic gengiva

Protunding tongue

Asymmetric thorax

Wide-set mamillae

Hypoplastic lungs

Atrial septal defect

Low set umbilicus

Multicystic dysplastic Kidneys

Vertebral anomalies

Extremities

Short upper arms

Cubitus valgus

Short hands Brachymetaphalangy

Clinodactyly/camptodactyly

Squared firngertips

Broad nails

Broad thumbs

Short metatarsal bones

Big overlapping toes with hypoplastic nails

Transverse creases

Cryptorchidism

Hypoplasia of external genitalia

Neurological

Microcephaly

Brachycephaly

Optical nerve atrophy

Sensorineural hearing loss

Spasticity

Presence of Babinsky sign

Increased deep tendon reflexes

Epilepsy

Muscle atrophy

Short stature

Low body weight

Inguinal hernia

Osteogenesis imperfecta

Stillborn

Turner like stigmata

Decreased LDHB activity

Sacro-coccygeal dimple

  1. LDHB Lactic Dehydrogenase B
  2. Ref. [14, 34, 38, 39, 4144, 47, 48]