Acneiform follicular mucinosis of the head and neck region.

Follicular mucinosis has a protean clinical presentation and can be differentiated in a benign-idiopathic type and an evolutive lymphoma-associated type. Young age and single localization, especially in the head and neck region, are suggestive of the benign type. Reviewing the literature of follicular mucinosis appearing as an acneiform eruption of the face and neck, we were unable to find any case evolving in lymphoma, suggesting that this form is a particular clinical sub-type of follicular mucinosis with a favorable prognosis. We report two cases of this variant of follicular mucinosis and discuss the clinical characteristics and differential diagnosis.