Manitoba oculotrichoanal syndrome
Dernière mise à jour 18 Aug 2020
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Manitoba oculotrichoanal syndrome is a condition involving several characteristic physical features, particularly affecting the eyes (oculo-), hair (tricho-), and anus (-anal).
Description
Manitoba oculotrichoanal syndrome is a condition involving several characteristic physical features, particularly affecting the eyes (oculo-), hair (tricho-), and anus (-anal).
People with Manitoba oculotrichoanal syndrome have widely spaced eyes (hypertelorism). They may also have other eye abnormalities including small eyes (microphthalmia), a notched or partially absent upper eyelid (upper eyelid coloboma), eyelids that are attached to the front surface of the eye (corneopalpebral synechiae), or eyes that are completely covered by skin and usually malformed (cryptophthalmos). These abnormalities may affect one or both eyes.
Individuals with Manitoba oculotrichoanal syndrome usually have abnormalities of the front hairline, such as hair growth extending from the temple to the eye on one or both sides of the face. One or both eyebrows may be completely or partially missing. Most people with this disorder also have a wide nose with a notched tip; in some cases this notch extends up from the tip so that the nose appears to be divided into two halves (bifid nose).
About 20 percent of people with Manitoba oculotrichoanal syndrome have defects in the abdominal wall, such as a soft out-pouching around the belly-button (an umbilical hernia) or an opening in the wall of the abdomen (an omphalocele) that allows the abdominal organs to protrude through the navel. Another characteristic feature of Manitoba oculotrichoanal syndrome is a narrow anus (anal stenosis) or an anal opening farther forward than usual. Umbilical wall defects or anal malformations may require surgical correction. Some affected individuals also have malformations of the kidneys.
The severity of the features of Manitoba oculotrichoanal syndrome may vary even within the same family. With appropriate treatment, affected individuals generally have normal growth and development, intelligence, and life expectancy.
Inheritance patterns
The source lists the following possible inheritance patterns: Autosomal recessive. More than one pattern can apply in different cases.
Related genes
Other names
Marles Greenberg Persaud syndrome
Marles syndrome
Marles-Greenberg-Persaud syndrome
MOTA
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Lectures complémentaires et références
- Manitoba oculotrichoanal syndrome; MedlinePlus, National Library of Medicine.
- Li C, Marles SL, Greenberg CR, Chodirker BN, van de Kamp J, Slavotinek A, Chudley AE. Manitoba Oculotrichoanal (MOTA) syndrome: report of eight new cases. Am J Med Genet A. 2007 Apr 15;143A(8):853-7. doi: 10.1002/ajmg.a.31446.
- Li C, Slavotinek A. FREM1 Autosomal Recessive Disorders. 2008 Jul 9 [updated 2025 May 1]. In: Adam MP, Bick S, Mirzaa GM, Wallace SE, Amemiya A, editors. GeneReviews(R) [Internet]. Seattle (WA): University of Washington, Seattle; 1993-2026. Available from http://www.ncbi.nlm.nih.gov/books/NBK1728/
- Marles SL, Greenberg CR, Persaud TV, Shuckett EP, Chudley AE. New familial syndrome of unilateral upper eyelid coloboma, aberrant anterior hairline pattern, and anal anomalies in Manitoba Indians. Am J Med Genet. 1992 Apr 1;42(6):793-9. doi: 10.1002/ajmg.1320420609.
- Slavotinek AM, Baranzini SE, Schanze D, Labelle-Dumais C, Short KM, Chao R, Yahyavi M, Bijlsma EK, Chu C, Musone S, Wheatley A, Kwok PY, Marles S, Fryns JP, Maga AM, Hassan MG, Gould DB, Madireddy L, Li C, Cox TC, Smyth I, Chudley AE, Zenker M. Manitoba-oculo-tricho-anal (MOTA) syndrome is caused by mutations in FREM1. J Med Genet. 2011 Jun;48(6):375-82. doi: 10.1136/jmg.2011.089631. Epub 2011 Apr 20.
- Yeung A, Amor D, Savarirayan R. Familial upper eyelid coloboma with ipsilateral anterior hairline abnormality: two new reports of MOTA syndrome. Am J Med Genet A. 2009 Feb 15;149A(4):767-9. doi: 10.1002/ajmg.a.32743.
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