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Odontotrichomelic syndrome
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Odontotrichomelic syndrome

Contributors: Regina Parker, Susan Burgin MD
Other Resources UpToDate PubMed

Synopsis

The ectodermal dysplasias are a group of disorders characterized by anomalies of the epidermis and its appendages, such as the hair, teeth, nails, and sweat glands.

Odontotrichomelic syndrome (OS) is an extremely rare type of ectodermal dysplasia with associated severe deformities of all 4 extremities. Fewer than 5 cases have been reported to date. Clinical findings include variable aplasia of the long bones of the extremities and digits, and of the patella, onychodysplasia, deformed auricles, hypotrichosis, abnormal dentition, hypoplastic or aplastic nipples and areolae, and nasolacrimal duct atresia. Other features include hypogonadism, thyroid enlargement and dysfunction, and intellectual disability. ECG and electroencephalogram (EEG) abnormalities as well as elevated levels of tyrosine and/or tryptophan in the urine have also been reported.

OS is thought to demonstrate an autosomal recessive mode of inheritance.

For more information, see OMIM.

Codes

ICD10CM:
Q89.8 – Other specified congenital malformations

SNOMEDCT:
239028001 – Odontotrichomelic syndrome

Look For

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Diagnostic Pearls

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Differential Diagnosis & Pitfalls

  • Roberts syndrome – autosomal recessive; characterized by symmetric reduction malformations of the extremities (hypomelia) and craniofacial malformations

Best Tests

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Management Pearls

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Therapy

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References

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Last Reviewed:07/14/2020
Last Updated:07/27/2020
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Odontotrichomelic syndrome
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Odontotrichomelic syndrome
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