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← Older revision		Revision as of 06:18, 4 April 2025
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			{{Infobox medical condition
			\| name = Monosomy 9p
			\| synonyms = 9p deletion syndrome, Alfi's syndrome
			\| field = [[Medical genetics]]
			\| symptoms = [[Developmental delay]], [[intellectual disability]], [[congenital heart defects]], [[craniofacial abnormalities]]
			\| onset = [[Congenital disorder\|Congenital]]
			\| duration = [[Lifelong]]
			\| causes = [[Chromosomal deletion]]
			\| risks = [[Parental chromosomal rearrangements]]
			\| diagnosis = [[Karyotype]], [[chromosomal microarray]]
			\| differential = [[Trisomy 9p]], [[Wolf-Hirschhorn syndrome]]
			\| treatment = [[Supportive care]], [[early intervention]], [[special education]]
			\| frequency = 1 in 50,000 births
			}}
	'''Monosomy 9p''' is a rare chromosomal disorder where a portion of the 9th chromosome is missing. This condition is characterized by mental retardation, growth deficiencies, distinctive facial features, and other physical abnormalities.		'''Monosomy 9p''' is a rare chromosomal disorder where a portion of the 9th chromosome is missing. This condition is characterized by mental retardation, growth deficiencies, distinctive facial features, and other physical abnormalities.

	== Symptoms and Signs ==		== Symptoms and Signs ==
	The symptoms of Monosomy 9p can vary greatly from one person to another. Some common symptoms include:		The symptoms of Monosomy 9p can vary greatly from one person to another. Some common symptoms include:
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	* Distinctive facial features such as a broad nasal bridge, low-set ears, and a thin upper lip		* Distinctive facial features such as a broad nasal bridge, low-set ears, and a thin upper lip
	* Other physical abnormalities such as heart defects, kidney abnormalities, and skeletal anomalies		* Other physical abnormalities such as heart defects, kidney abnormalities, and skeletal anomalies

	== Causes ==		== Causes ==
	Monosomy 9p is caused by a deletion of genetic material from the short arm (p) of chromosome 9. The size and location of the deletion can vary, and this can influence the severity and type of symptoms a person experiences.		Monosomy 9p is caused by a deletion of genetic material from the short arm (p) of chromosome 9. The size and location of the deletion can vary, and this can influence the severity and type of symptoms a person experiences.

	== Diagnosis ==		== Diagnosis ==
	Diagnosis of Monosomy 9p is typically made through a [[genetic test]] known as a karyotype. This test involves examining the chromosomes in a sample of blood or other body tissues.		Diagnosis of Monosomy 9p is typically made through a [[genetic test]] known as a karyotype. This test involves examining the chromosomes in a sample of blood or other body tissues.

	== Treatment ==		== Treatment ==
	There is currently no cure for Monosomy 9p. Treatment is symptomatic and supportive, and may include physical therapy, special education, and other medical interventions as needed.		There is currently no cure for Monosomy 9p. Treatment is symptomatic and supportive, and may include physical therapy, special education, and other medical interventions as needed.

	== Prognosis ==		== Prognosis ==
	The prognosis for individuals with Monosomy 9p varies depending on the size and location of the chromosomal deletion, as well as the specific symptoms and complications that are present.		The prognosis for individuals with Monosomy 9p varies depending on the size and location of the chromosomal deletion, as well as the specific symptoms and complications that are present.

	== See also ==		== See also ==
	* [[Chromosome 9]]		* [[Chromosome 9]]
	* [[Chromosomal deletion]]		* [[Chromosomal deletion]]
	* [[Genetic disorders]]		* [[Genetic disorders]]

	[[Category:Genetic disorders]]		[[Category:Genetic disorders]]
	[[Category:Rare diseases]]		[[Category:Rare diseases]]
	[[Category:Chromosomal abnormalities]]		[[Category:Chromosomal abnormalities]]

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2024-02-24T18:28:23Z

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'''Monosomy 9p''' is a rare chromosomal disorder where a portion of the 9th chromosome is missing. This condition is characterized by mental retardation, growth deficiencies, distinctive facial features, and other physical abnormalities.

== Symptoms and Signs ==
The symptoms of Monosomy 9p can vary greatly from one person to another. Some common symptoms include:
* [[Mental retardation]]
* [[Growth deficiencies]]
* Distinctive facial features such as a broad nasal bridge, low-set ears, and a thin upper lip
* Other physical abnormalities such as heart defects, kidney abnormalities, and skeletal anomalies

== Causes ==
Monosomy 9p is caused by a deletion of genetic material from the short arm (p) of chromosome 9. The size and location of the deletion can vary, and this can influence the severity and type of symptoms a person experiences.

== Diagnosis ==
Diagnosis of Monosomy 9p is typically made through a [[genetic test]] known as a karyotype. This test involves examining the chromosomes in a sample of blood or other body tissues.

== Treatment ==
There is currently no cure for Monosomy 9p. Treatment is symptomatic and supportive, and may include physical therapy, special education, and other medical interventions as needed.

== Prognosis ==
The prognosis for individuals with Monosomy 9p varies depending on the size and location of the chromosomal deletion, as well as the specific symptoms and complications that are present.

== See also ==
* [[Chromosome 9]]
* [[Chromosomal deletion]]
* [[Genetic disorders]]

[[Category:Genetic disorders]]
[[Category:Rare diseases]]
[[Category:Chromosomal abnormalities]]

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Monosomy 9p - Revision history

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