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Naevus flammeus nuchae, often called stork bite or nevus simplex, is a congenital capillary malformation present in newborns. It is a common type of birthmark in a newborn and is usually temporary.^[1]

Signs and symptoms

Stork bites occur in a significant number of newborns, with estimates ranging from 22–40 percent^[2] to 40–70 percent;^[3] they are reported more frequently for white babies than for infants of other races.^[2] They result from a dilation of capillaries in the skin,^[3] and may become darker when the child cries or strains.^[4]

The birthmarks, which are pinkish and irregularly shaped, occur most frequently on the nape of the neck; however, they are also common on the forehead, eyelids and upper lip.^[2] A baby may be born with a stork bite, or the birthmark may appear in the first months of life. They may also be found occasionally on other parts of the body. The skin is not thickened and feels no different from anywhere else on the body; the only difference is in appearance.^{[citation needed]}

Exams and tests

A doctor can diagnose a stork bite with a simple visual inspection. No tests are needed.^{[citation needed]}

Treatment

No treatment is needed. If a stork bite lasts longer than 3 years, it may be removed using laser surgery to change the person's appearance.^{[citation needed]}

Outlook (prognosis)

Most stork bites on the face go away completely in about 18 months. Stork bites on the back of the neck usually do not go away. ^[5]

References

^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. Page 169. ISBN 0-7216-2921-0.
^ ^a ^b ^c Fletcher, Mary Ann (1998). Physical Diagnosis in Neonatals. Philadelphia, PA, US: Lippincott-Raven. p. 151. ISBN 0-397-51386-0.
^ ^a ^b Habif, Thomas P. (2016). Clinical Dermatology. Amsterdam, Netherlands: Elsevier. p. 913. ISBN 978-0-323-26183-8.
^ Zitelli, Basil John; McIntire, Sara C.; Nowalk, Andrew J. (2012). Zitelli and Davis' Atlas of Pediatric Physical Diagnosis (6 ed.). Philadelphia, PA, US: Elsevier Saunders. p. 351. ISBN 978-0-323-07932-7.
^ MedlinePlus Encyclopedia Stork bite

UpToDate Contents

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1. 項部のケロイド性ざ瘡 acne keloidalis nuchae
2. 膿疱性皮膚病変を有する患者へのアプローチ approach to the patient with pustular skin lesions
3. 頭皮の発疹を有する患者へのアプローチ approach to the patient with a scalp disorder
4. 尋常性ざ瘡の病因、臨床症状、および診断 pathogenesis clinical manifestations and diagnosis of acne vulgaris
5. 脱毛の評価および診断 evaluation and diagnosis of hair loss

English Journal

Keloid formation occurring in the distribution of a congenital vascular malformation.

Mandrell J1, Youker S, Allen EJ, Hurley MY, Obadiah J.
Skinmed.Skinmed.2010 Sep-Oct;8(5):298-300.
A 35-year-old African American man presented with complaints of malodorous drainage from hypertrophic lesions on his occipital scalp (Figure 1, inset). The patient had no family history of keloid formation and no other keloids on his body. The hypertrophic mass on his scalp had been present for 10 y
PMID 21137643

Butterfly-shaped mark: a variant form of nevus flammeus simplex.

Metzker A1, Shamir R.
Pediatrics.Pediatrics.1990 Jun;85(6):1069-71.
A red-violet, rhomboid-shaped mark on the sacrum of 25 children is described. It is recognized, for the first time, as a part of the nevus flammeus simplex distribution; it is less common than the erythema nuchae or the facial salmon patch. It has the tendency to disappear more slowly than other for
PMID 2101578