MEDALLION-LIKE DERMAL DENDROCYTE HAMARTOMA

By Gary M. White, MD


Medallion-Like Dermal Dendrocyte Hamartoma (MLDDH) is a rare, congenital lesion in the shape of a medallion and is caused by the presence of dermal dendrocytes.

Clinical

The solitary, asymptomatic, congenital lesion is typically round, oval or triangular in shape, several centimeters in diameter, brown or erythematous in color, with well-defined borders, and with a slightly atrophic wrinkled surface. Biopsy with immunostaining allows diagnosis of this rare benign lesion. Rarely, lesions may be acquired or be factor XIIIa–negative.

Treatment

No treatment is needed. Surgical excision, if feasible, may be done.

References

A 20-year-old man with a congenital, asymptomatic plaque on the anterior aspect of his neck. Dermatology Online Journal 17 (9)

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