Mucinous nevus
| Mucinous nevus | |
|---|---|
| Other names | Nevus mucinosus |
| Specialty | Dermatology |
Mucinous nevus is a rare cutaneous condition characterized by hamartoma that can be congenital or acquired.[1] Mucinous nevus presents as multiple skin-coloured or brown asymptomatic papules or plaques. Mucinous nevus is diagnosed based of histological features. Treatment is not needed.
Signs and symptoms
Mucinous nevus appears as several skin-coloured to brownish papules or plaques that are asymptomatic; the individual lesions merge and expand to form a unilateral or zosteriform feature that is verrucous or nevoid.[2][3] It normally starts to develop in early adulthood or from birth.[4] The main location is the trunk, which includes the back.[2][5]
Causes
There has been reports of familial mucinous nevus, however there have been no reports of genetic abnormalities.[5][4]
Diagnosis
Histologically, diffuse band-like mucin deposits in the uppermost layer of the dermis are indicative of mucinous nevus.[6] Hyaluronic acid is assumed to be the component of mucin since it reacts positively with alcian blue at pH 2.5 but does not at pH 0.5.[7][8]
Treatment
Mucinous nevi are benign and don't need to be treated other than for aesthetic reasons.[2] Carbon dioxide laser therapy, scalpel dermabrasion, and surgical excision are treatment options.[9]
See also
- MRI burn
- List of cutaneous conditions
References
Further reading
- Song, Byong Han; Park, Saebomi; Park, Eun Joo; Kwon, In Ho; Kim, Kwang Ho; Kim, Kwang Joong (2012). "Mucinous Nevus With Fat". The American Journal of Dermatopathology. 34 (8). Ovid Technologies (Wolters Kluwer Health): e146–e148. PMID 22878365.
- Kim, Eun Jee; Jo, Seong-Jin; Cho, Kwang Hyun (2014). "A Case of Mucinous Nevus Clinically Mimicking Nevus Lipomatosus Superficialis". Annals of Dermatology. 26 (4). Korean Dermatological Association and The Korean Society for Investigative Dermatology: 549–550. PMID 25143699.