A man in his 50s was referred to the dermatology clinic from the plastic surgery clinic with a two year history of a right sided nasal lesion. The lesion started as a papule that enlarged slowly and ...

Papules often develop into pustules (pimples filled with white or yellow pus), at which point they can be popped. Acne papules differ from nodules in how painful they are and how difficult they are to ...

This five-year-old girl presents in your morning clinic with a linear rash of raised, bumpy spots on her chin which is causing her to itch constantly. Her mother explains that the rash has gradually ...

Cutaneous metastases are uncommon in daily practice, although very important, since they may be the first manifestation of an undiscovered primary neoplasm or the first indication of recurrence.

A 41-year-old woman with no significant past medical history presents with a solitary nodule on her lower left ankle. The lesion has been growing over the past several months. The patient first ...

A new scanner can provide three-dimensional (3D) photoacoustic images of millimeter-scale veins and arteries in seconds. The scanner, developed by researchers at University College London (UCL), ...

Pyogenic granulomas are noncancerous growths that may appear on the skin following skin injury or hormonal changes. Treatment may only be necessary if they bleed or are in sensitive areas. Pyogenic ...

Raúl Rivas González does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations ...