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MedGen

National Center for Biotechnology Information

Search results

Items: 6

Select item 8672571.

Delayed pneumatization of the mastoid process

An abnormally reduced degree of pneumatization (i.e., formation of air cells) in the mastoid process with respect to age-dependent norms. [from HPO]

MedGen UID:: 867257
•Concept ID:: C4021617
•: Finding

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 8674512.

Advanced pneumatization of the mastoid process

An abnormally advanced degree of pneumatization (i.e., formation of air cells) in the mastoid process with respect to age-dependent norms. [from HPO]

MedGen UID:: 867451
•Concept ID:: C4021828
•: Finding

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 74803.

Mastoiditis

Inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system of the mastoid process. [from NCI]

MedGen UID:: 7480
•Concept ID:: C0024904
•: Disease or Syndrome

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 30434.

Cholesteatoma

Cholesteatoma is a benign but potentially destructive growth consisting of keratinizing epithelium located in the middle ear and/or mastoid process. In cholesteatoma, a skin cyst grows into the middle ear and mastoid. The cyst is not cancerous but can erode tissue and cause destruction of the ear. [from HPO]

MedGen UID:: 3043
•Concept ID:: C0008373
•: Disease or Syndrome

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 8667235.

Absent mastoid

A developmental anomaly in which the mastoid process fails to form and is thus found to be congenitally absent. [from HPO]

MedGen UID:: 866723
•Concept ID:: C4021070
•: Congenital Abnormality

GTR
ClinVar
Genes
OMIM
GeneReviews

Select item 8713766.

Abnormal mastoid morphology

An abnormality of the mastoid process, which is the conical prominence projecting from the undersurface of the mastoid portion of the temporal bone. [from HPO]