Nevus spilus
| Classification according to ICD-10 | |
|---|---|
| D22.9 | Melanocyte nevus, unspecified |
| ICD-10 online (WHO version 2019) | |
A nevus spilus is a relatively large, evenly brown-colored patch of skin (similar to a café-au-lait patch ), which also has numerous small, dark brown spots on the pigmented base ( nevus cell nevi ). The term “spilus” refers to the ancient Greek word “spilos”, which can be translated as “dirt”: a nevus spilus looks like a “stain” when viewed superficially. Because of its characteristic appearance, it is often called the " lapwing- egg nevus". It is a particular subtype of benign, limited pigmented malformations of the skin ( pigmented nevi ), commonly known as " liver spots " or " moles ".
A combination with a nevus sebaceus is found in phakomatosis pigmentokeratotica .
Epidemiology
On average, 3 out of 100 fair-skinned adults have naevi spili.
clinic
This type of pigment nevus corresponds to the combination of extensive hyperpigmentation (similar to a large lentigo simplex or a café-au-lait spot) with many smaller nevus cell nevi scattered around it. The overall diameter ranges from a few centimeters to over 15 cm. The smaller nevus cell nevi are 2-3 mm in diameter and may have protrusions, as they can be either junctional nevi or compound nevi .
forecast
The presence of dysplastic nevi within this skin lesion or its subsequent development and transition to malignant melanoma are rare.
Web links
literature
- Thomas B. Fitzpatrick, Klaus Wolff (Hrsg.): Atlas and synopsis of clinical dermatology. Common and threatening diseases . 3rd ed. McGraw-Hill, New York 1998, ISBN 0-07-709988-5 .
- Ernst G. Jung, Ingrid Moll (Ed.): Dermatology . 5th edition Thieme, Stuttgart 2003, ISBN 3-13-126685-6 .
- Pschyrembel Clinical Dictionary . 254th edition 1982.
- A. Bernard Ackerman, Lorenzo Cerroni, Helmu Kerl: Pitfalls in Histopathologic Diagnosis of Malignant Melanoma . Lea & Febiger, Philadelphia 1994, ISBN 0-8121-1352-7 .
