From HPO
Hydrocephalus- MedGen UID:
- 9335
- •Concept ID:
- C0020255
- •
- Disease or Syndrome
Hydrocephalus is an active distension of the ventricular system of the brain resulting from inadequate passage of CSF from its point of production within the cerebral ventricles to its point of absorption into the systemic circulation.
Craniosynostosis syndrome- MedGen UID:
- 1163
- •Concept ID:
- C0010278
- •
- Disease or Syndrome
Craniosynostosis refers to the premature closure of the cranial sutures. Primary craniosynostosis refers to the closure of one or more sutures due to abnormalities in skull development, and secondary craniosynostosis results from failure of brain growth.
Brachycephaly- MedGen UID:
- 113165
- •Concept ID:
- C0221356
- •
- Congenital Abnormality
An abnormality of skull shape characterized by a decreased anterior-posterior diameter. That is, a cephalic index greater than 81%. Alternatively, an apparently shortened anteroposterior dimension (length) of the head compared to width.
Choanal atresia- MedGen UID:
- 3395
- •Concept ID:
- C0008297
- •
- Congenital Abnormality
Absence or abnormal closure of the choana (the posterior nasal aperture). Most embryologists believe that posterior choanal atresia results from a failure of rupture between the 35th and 38th day of fetal life of the partition which separates the bucconasal or buccopharyngeal membranes. The resultant choanal atresia may be unilateral or bilateral, bony or membranous, complete or incomplete. In over 90 per cent of cases the obstruction is bony, while in the remainder it is membranous. The bony type of atresia is commonly located 1-2 mm. anterior to the posterior edge of the hard palate, and the osseous septum varies in thickness from 1 to 10 mm. In the membranous form of choanal atresia the obstruction usually occurs further posteriorly. In approximately one third of cases the atresia is bilateral.
Midface retrusion- MedGen UID:
- 339938
- •Concept ID:
- C1853242
- •
- Anatomical Abnormality
Posterior positions and/or vertical shortening of the infraorbital and perialar regions, or increased concavity of the face and/or reduced nasolabial angle.
Acanthosis nigricans- MedGen UID:
- 54
- •Concept ID:
- C0000889
- •
- Disease or Syndrome
A dermatosis characterized by thickened, hyperpigmented plaques, typically on the intertriginous surfaces and neck.
Melanocytic nevus- MedGen UID:
- 14364
- •Concept ID:
- C0027962
- •
- Neoplastic Process
A oval and round, colored (usually medium-to dark brown, reddish brown, or flesh colored) lesion. Typically, a melanocytic nevus is less than 6 mm in diameter, but may be much smaller or larger.
Proptosis- MedGen UID:
- 41917
- •Concept ID:
- C0015300
- •
- Disease or Syndrome
An eye that is protruding anterior to the plane of the face to a greater extent than is typical.
Hypertelorism- MedGen UID:
- 9373
- •Concept ID:
- C0020534
- •
- Finding
Although hypertelorism means an excessive distance between any paired organs (e.g., the nipples), the use of the word has come to be confined to ocular hypertelorism. Hypertelorism occurs as an isolated feature and is also a feature of many syndromes, e.g., Opitz G syndrome (see 300000), Greig cephalopolysyndactyly (175700), and Noonan syndrome (163950) (summary by Cohen et al., 1995).
- Abnormality of head or neck
- Abnormality of the eye
- Abnormality of the integument
- Abnormality of the musculoskeletal system
- Abnormality of the nervous system