Eruptive seborrheic keratoses (ESK) are rare in dermatology. They are usually inflammatory in nature and may be encountered as Leser-Trélat sign. ESK may also be simultaneously observed with hepatic angiomas, chemotherapy, segmental neurofibromatosis, HIV or erythrodermic pityriasis rubra pilaris, psoriasis, and drug eruption. ESK may be transient and self-healing. Others recede after successfu...

Pityriasis rubra pilaris (PRP) is a rare chronic inflammatory keratosis that is clinically characterized by gradually developing reddish or orange extending plaques and keratotic follicular papules. In pediatric patients, we frequently hesitate to administer certain medications for treatment of PRP, specifically etretinate, systemic corticosteroids, and biologics recommended by previous studies...

Pityriasis rosea is a distinct papulosquamous skin eruption that has been attributed to viral reactivation, certain drug exposures or rarely, vaccination. Herein, we reported a clinicopathlogically typical case of pityriasis rosea that developed after the H1N1 vaccination. With a global H1N1 vaccination program against the pandemic H1N1 influenza, patients should be apprised of the possibility ...

Pityriasis rosea (PR) is a common skin eruption in children that is characterized by a single skin patch that usually evolves into a widespread exanthem after one week. The duration of PR is typically six weeks and the condition is selflimited with excellent prognosis. The diagnosis is established by proper history taking and physical examination of the skin lesions. Laboratory investigations a...