Pinna abnormalities and low-set ears

Considerations:
The pinna or auricle forms (during fetal development ) at a time when many other critical organs are forming (such as the kidneys). Abnormalities in the shape or positioning of the pinna may be an indication that there are other associated abnormalities present.

Common abnormalities include abnormal folds in the pinna, prominence of the ears, low-set positioning, and absence of the pinna.

Many children are born with ears that stick out (protruding ears). Although people may comment on the ear shape, and other children may call the child names, this condition is a variation of normal and is not associated with other disorders. However, low-set ears, absent pinna, and abnormal folds CAN be associated with various conditions.

Common Causes:
The following conditions include both low-set and malformed ears.

Note: There may be other causes of abnormal ear shapes. This list is not all inclusive, and the causes are not presented in order of likelihood. The causes of this symptom can include unlikely diseases and medications. Furthermore, the causes may vary based on age and gender of the affected person, as well as on the specific characteristics of the symptom such as quality and associated complaints. Use the Symptom Analysis option to explore the possible explanations for pinna abnormalities and low-set ears, occurring alone or in combination with other problems.

Home Care:

  • Call your health care provider.



Call Your Healthcare Provider If:
(This condition is usually found during the first well baby exam.)

  • you notice abnormally shaped or positioned ears.
  • there are any other symptoms also present.



What to Expect:
The medical history will be obtained and a physical examination performed.

Medical history questions documenting your symptom in detail may include:

  • What is the abnormality (low set, unusual position, etc.)?
  • Were any other abnormalities also present?
  • Is there any family history of having abnormal-shaped ears?
  • Is there a family history of any of the disorders associated with pinna abnormalities and low set ears?

Physical examination:
An infant with pinna abnormalities should be examined to determine if other abnormalities are present. Examination for any mental development changes may be performed as the child grows. Diagnostic tests that may be performed include a chromosome analysis .

Intervention:
No treatment is needed for pinna abnormalities, as they do not affect the hearing. However, sometimes cosmetic surgery is recommended.

After seeing your health care provider:
You may want to add a diagnosis related to pinna abnormalities or low-set ears to your personal medical record.


This is an illustration of the outside of the ear showing normal landmarks and several abnormal features including: earlobe creases, a preauricular pit, and a preauricular tag.