A 40-year-old man presented to the clinic for evaluation of a 1.1-cm blue papule on his right nares. The lesion had been present for 20 years, but he sought treatment now at the urging of his wife.

A biopsy of the woman’s leg papules demonstrated collagen bundles perforating and extruding through the epidermis. The collagen formed a plug and lay within a cup-shaped epidermal depression. A sparse ...

Please provide your email address to receive an email when new articles are posted on . A 10-year-old boy comes to your clinic with a chronic, enlarging lesion on his right arm. It began as an ...

Pityriasis rosea (PR) is an acute inflammatory skin disorder characterized by erythematous scaling papules and macules. PR lesions are most commonly distributed over the trunk and proximal extremities ...

In my response to a related question, How Do I Differentiate Normal Aging of the Skin From Pathologic Conditions? I described some of the most common benign lesions that are encountered in geriatric ...

In a recent case report posted to the Research Square* preprint server, researchers described the symptomatology and clinical manifestations of monkeypox infections among two Israeli patients. Study: ...