JAMA Dermatology

Clinical Management of Neuropathic Itch

This JAMA Network Insight reviews the underlying mechanisms and management of peripheral sensory itch conditions.

Foscarnet-Induced Penile Ulceration

This case report describes an uncircumcised male individual with tender perimeatal erythema and ulceration extending to the right glans.

Multiple Long-Standing Papules and Nodules on the Left Lower Leg

A woman in her 60s with long-standing thickening and induration of the legs presented with 1 week of left leg pain. Physical examination results revealed multiple firm skin-colored papules and nodules coalescing to form a large plaque on the anterior…

Pruritic Rash in a Woman With Endometrial Cancer

A woman in her 60s presents with a pruritic rash that initially developed on the legs and progressed to her feet, arms, hands, and trunk, with associated symptoms of a burning sensation and occasional pain. What is your diagnosis?

Persistent Green-Blue Plaque in a Healthy Woman

A woman in her 30s presents with a bruise on her hand with a blue-green plaque that appeared after a twisting injury to the affected hand. What is your diagnosis?

A Reddish Semitransparent Tumor in an Adolescent Girl

A previously healthy 16-year-old girl presented with a lesion on her right upper arm that initially started as a small cutaneous nodule without obvious triggers and gradually developed and enlarged to form a red-colored tumor with a hard nodule inside….

Focal Dermal Hypoplasia

This case report describes facial atrophic papules with telangiectasias, streaked hypopigmented and hyperpigmented papules on the left side of the trunk and extremities, and soft yellow fat herniations.