Nevus spilus: Difference between revisions

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'''Nevus spilus''' is a rare type of [[birthmark]] that appears as a light brown or tan patch with darker spots within it. It is also known as a speckled lentiginous nevus. This condition is usually present at birth or appears in early childhood.  
{{SI}}
 
{{Infobox medical condition
== Causes ==
| name            = Nevus spilus
 
| image          = [[File:Naevus-spilus.jpg|250px]]
The exact cause of nevus spilus is unknown. It is thought to be caused by a mutation in the skin cells that causes them to produce more pigment than normal. This results in the formation of a patch of skin that is darker than the surrounding skin. The darker spots within the patch are caused by clusters of these pigment-producing cells, known as [[melanocytes]].
| caption        = Nevus spilus on the skin
 
| synonyms        = Speckled lentiginous nevus, Zosteriform lentiginous nevus
== Symptoms ==
| field          = [[Dermatology]]
 
| symptoms        = Light brown patch with darker spots
The main symptom of nevus spilus is the presence of a light brown or tan patch of skin with darker spots within it. The patch can vary in size and shape, and the spots within it can also vary in size and color. The patch and spots are usually flat and do not cause any discomfort or other symptoms.
| complications  = Rarely, [[melanoma]]
 
| onset          = [[Childhood]]
| duration        = Lifelong
| causes          = [[Genetic]] factors
| risks          = Increased risk of [[melanoma]]
| diagnosis      = [[Clinical diagnosis]], [[dermoscopy]]
| differential    = [[Café au lait spot]], [[lentigo]], [[congenital melanocytic nevus]]
| treatment      = Usually none, [[laser therapy]] if desired
| prognosis      = Excellent, low risk of complications
| frequency      = Common
}}
A '''nevus spilus''', also known as a "speckled lentiginous nevus," is a type of [[pigmented skin lesion]] that is characterized by a tan or light brown background patch with darker spots or macules scattered within it. This condition is generally benign and is considered a type of [[congenital melanocytic nevus]].
== Characteristics ==
Nevus spilus typically appears as a flat, light brown patch on the skin, which can vary in size from a few millimeters to several centimeters. Within this patch, there are multiple darker macules or papules that can range in color from dark brown to black. These darker spots are often described as "speckled" or "flecked," giving the nevus its distinctive appearance.
== Development ==
Nevus spilus can be present at birth or develop during childhood or adolescence. The background patch may enlarge over time, and additional darker spots may appear. The exact cause of nevus spilus is not well understood, but it is thought to result from a localized increase in melanocytes, the cells responsible for producing [[melanin]], the pigment that gives skin its color.
== Diagnosis ==
== Diagnosis ==
 
The diagnosis of nevus spilus is typically made based on its characteristic appearance. A [[dermatologist]] may use a [[dermatoscope]] to examine the lesion more closely. In some cases, a [[biopsy]] may be performed to rule out other conditions, such as [[melanoma]].
Nevus spilus is usually diagnosed by a [[dermatologist]] based on its appearance. In some cases, a [[biopsy]] may be performed to confirm the diagnosis and rule out other conditions.
== Management ==
 
In most cases, nevus spilus does not require treatment, as it is a benign condition. However, regular monitoring by a healthcare professional is recommended to detect any changes that might suggest malignant transformation. If there are any suspicious changes, such as rapid growth, change in color, or irregular borders, further evaluation may be necessary.
== Treatment ==
== Related Conditions ==
 
Nevus spilus is related to other types of pigmented lesions, such as:
There is no specific treatment for nevus spilus. If the patch or spots change in size, shape, or color, or if they become painful or itchy, it may be necessary to have them removed. This can be done through surgery, laser treatment, or other methods.
* [[Congenital melanocytic nevus]]
 
* [[Lentigo]]
== Prognosis ==
* [[Café-au-lait spot]]
 
The prognosis for nevus spilus is generally good. It is not a life-threatening condition and does not usually cause any health problems. However, there is a small risk that the spots within the patch could develop into [[melanoma]], a type of skin cancer. Regular check-ups with a dermatologist are recommended to monitor for any changes.
 
== See also ==
== See also ==
 
* [[Melanocytic nevus]]
* [[Birthmark]]
* [[Skin lesion]]
* [[Melanoma]]
* [[Dermatology]]
* [[Dermatology]]
 
[[Category:Dermatology]]
[[Category:Skin conditions]]
[[Category:Skin conditions]]
[[Category:Birthmarks]]
[[Category:Dermatology]]
{{stub}}

Latest revision as of 05:54, 8 April 2025

Editor-In-Chief: Prab R Tumpati, MD
Obesity, Sleep & Internal medicine
Founder, WikiMD Wellnesspedia &
W8MD medical weight loss NYC and sleep center NYC

Nevus spilus
Synonyms Speckled lentiginous nevus, Zosteriform lentiginous nevus
Pronounce N/A
Specialty N/A
Symptoms Light brown patch with darker spots
Complications Rarely, melanoma
Onset Childhood
Duration Lifelong
Types N/A
Causes Genetic factors
Risks Increased risk of melanoma
Diagnosis Clinical diagnosis, dermoscopy
Differential diagnosis Café au lait spot, lentigo, congenital melanocytic nevus
Prevention N/A
Treatment Usually none, laser therapy if desired
Medication N/A
Prognosis Excellent, low risk of complications
Frequency Common
Deaths N/A


A nevus spilus, also known as a "speckled lentiginous nevus," is a type of pigmented skin lesion that is characterized by a tan or light brown background patch with darker spots or macules scattered within it. This condition is generally benign and is considered a type of congenital melanocytic nevus.

Characteristics[edit]

Nevus spilus typically appears as a flat, light brown patch on the skin, which can vary in size from a few millimeters to several centimeters. Within this patch, there are multiple darker macules or papules that can range in color from dark brown to black. These darker spots are often described as "speckled" or "flecked," giving the nevus its distinctive appearance.

Development[edit]

Nevus spilus can be present at birth or develop during childhood or adolescence. The background patch may enlarge over time, and additional darker spots may appear. The exact cause of nevus spilus is not well understood, but it is thought to result from a localized increase in melanocytes, the cells responsible for producing melanin, the pigment that gives skin its color.

Diagnosis[edit]

The diagnosis of nevus spilus is typically made based on its characteristic appearance. A dermatologist may use a dermatoscope to examine the lesion more closely. In some cases, a biopsy may be performed to rule out other conditions, such as melanoma.

Management[edit]

In most cases, nevus spilus does not require treatment, as it is a benign condition. However, regular monitoring by a healthcare professional is recommended to detect any changes that might suggest malignant transformation. If there are any suspicious changes, such as rapid growth, change in color, or irregular borders, further evaluation may be necessary.

Related Conditions[edit]

Nevus spilus is related to other types of pigmented lesions, such as:

See also[edit]