Erythromelanosis follicularis faciei et colli is an erythematous pigmentary disease involving the follicles, characterized by a reddish-brown, sharply demarcated, symmetrical discoloration involving the preauricular and maxillary regions.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. .
Signs and symptoms Erythromelanosis follicularis faciei et colli is characterized by patches of erythema (with or without telangiectasia), follicular papules (follicular plugging), and bilateral and symmetrical hyperpigmentation (reddish-brown pigmentation) that start on the preauricular areas and cheeks and can eventually migrate to the submandibular portions of the neck.
Causes Although the cause of this disorder is unknown, familial cases, spontaneous mutation, and an autosomal recessive pattern of inheritance have all been documented.
Diagnosis Histopathologic observations include vascular dilatation in the upper dermis, hyperkeratosis, follicular plugging, and enhanced basal membrane pigmentation.
Treatment Topical therapies include metronidazole, ammonium lactate, tacalcitol ointment, retinoids, hydroquinone, and salicylic acid. There have been reports of erythema and hyperpigmentation treated with pulsed dye laser or Nd:YAG laser.
See also Pigmentatio reticularis faciei et colli List of cutaneous conditions
References
Further reading
External links VisualDx