Hair follicle nevus: Difference between revisions

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'''Hair Follicle Nevus'''


[[File:Hair Follicle Nevus.jpg|thumb|right|250px|A microscopic view of a Hair Follicle Nevus]]
{{Infobox medical condition
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| field = [[Dermatology]]
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The '''Hair Follicle Nevus''' is a rare [[dermatology|dermatological]] condition characterized by the presence of multiple, small, hair-bearing papules. It is a type of [[hamartoma]], a benign, focal malformation that resembles a neoplasm in the tissue of its origin. This condition is not a true neoplasm, but rather, it may occur at any site on the body, although the lesions are most commonly found on the face.
A '''hair follicle nevus''' is a type of [[skin lesion]] that is characterized by a small, benign growth associated with a [[hair follicle]]. These nevi are typically found on the [[scalp]] or other [[hair-bearing areas]] of the body.


==Clinical Presentation==
==Presentation==
Hair follicle nevi usually present as small, flesh-colored or slightly pigmented papules. They are often asymptomatic and are discovered incidentally during a [[dermatological examination]].


Patients with Hair Follicle Nevus typically present with multiple, small, skin-colored or brown papules that contain a central hair. These lesions are usually less than 5mm in diameter and are often found on the face, although they can occur anywhere on the body. The condition is usually asymptomatic, but the lesions can sometimes cause cosmetic concern.
==Pathophysiology==
The exact cause of hair follicle nevi is not well understood, but they are thought to arise from a localized proliferation of [[follicular cells]]. Unlike other types of [[nevi]], hair follicle nevi are not associated with an increased risk of [[malignant transformation]].


==Diagnosis==
==Diagnosis==
 
Diagnosis of a hair follicle nevus is typically made based on clinical appearance. In some cases, a [[skin biopsy]] may be performed to confirm the diagnosis and rule out other conditions such as [[basal cell carcinoma]] or [[trichoepithelioma]].
The diagnosis of Hair Follicle Nevus is typically made based on the clinical presentation. A [[biopsy]] may be performed to confirm the diagnosis and to rule out other conditions. Histologically, the lesions show an increased number of hair follicles, often with a perifollicular fibrous sheath.


==Treatment==
==Treatment==
Treatment is generally not necessary for hair follicle nevi unless they become symptomatic or for cosmetic reasons. If removal is desired, options include [[surgical excision]] or [[laser therapy]].


There is no specific treatment for Hair Follicle Nevus. The lesions are benign and do not require treatment unless they cause cosmetic concern. In such cases, they can be removed by [[dermatological surgery|surgical excision]], [[laser therapy]], or [[cryotherapy]].
==Prognosis==
 
The prognosis for individuals with hair follicle nevi is excellent, as these lesions are benign and do not pose any health risks.
==Epidemiology==
 
Hair Follicle Nevus is a rare condition. The exact prevalence is unknown, but it is thought to occur more commonly in males than in females. The condition usually presents in childhood or early adulthood.
 
==See Also==


==See also==
* [[Nevus]]
* [[Nevus]]
* [[Hamartoma]]
* [[Dermatology]]
* [[Dermatology]]
* [[Skin lesion]]


==References==
==References==
 
{{reflist}}
<references />


[[Category:Dermatology]]
[[Category:Dermatology]]
[[Category:Skin conditions]]
[[Category:Skin conditions]]
[[Category:Rare diseases]]
[[Category:Nevi and melanocytic lesions]]

Latest revision as of 04:29, 29 December 2024


Hair follicle nevus
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Symptoms
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Causes
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Prevention
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A hair follicle nevus is a type of skin lesion that is characterized by a small, benign growth associated with a hair follicle. These nevi are typically found on the scalp or other hair-bearing areas of the body.

Presentation[edit]

Hair follicle nevi usually present as small, flesh-colored or slightly pigmented papules. They are often asymptomatic and are discovered incidentally during a dermatological examination.

Pathophysiology[edit]

The exact cause of hair follicle nevi is not well understood, but they are thought to arise from a localized proliferation of follicular cells. Unlike other types of nevi, hair follicle nevi are not associated with an increased risk of malignant transformation.

Diagnosis[edit]

Diagnosis of a hair follicle nevus is typically made based on clinical appearance. In some cases, a skin biopsy may be performed to confirm the diagnosis and rule out other conditions such as basal cell carcinoma or trichoepithelioma.

Treatment[edit]

Treatment is generally not necessary for hair follicle nevi unless they become symptomatic or for cosmetic reasons. If removal is desired, options include surgical excision or laser therapy.

Prognosis[edit]

The prognosis for individuals with hair follicle nevi is excellent, as these lesions are benign and do not pose any health risks.

See also[edit]

References[edit]

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