Dermatology

A 32-year-old woman presents with recurrent episodes of lip swelling associated with massive, painful blister formation and crusting.

Vascular warts can be messy to remove. Luckily, and old-fashioned trick can make wart removal easier.

A 33-year-old man seeks attention for his abnormal toenails, having already failed full treatment courses of both terbinafine and itraconazole.

Tinea corporis typically presents as an annular erythematous plaque with a raised leading edge and scale. Granuloma annulare classically presents with 1 or more indurated, erythematous or violaceous annular plaques on the extremities. Here, more on diagnosis and treatment.

In this transplant recipient, the real question is whether this squamous cell carcinoma is a recurrence of the prior one or a new primary neoplasm.

The one disease in which small nail pits and separation of the nail plate from the nail bed is seen concomitantly is psoriasis.

The distinct appearance of this entirely macular pigmentation is classic for benign vulvar lentiginosis (also called benign vulvar melanosis).

The smooth and translucent nature of this nodule suggests the correct diagnosis: basal cell carcinoma.

Congenital hairy nevi in this location are often associated with-and act as signs of-abnormalities of the vertebrae, spinal cord or both.

There are some nevi with odd-appearing morphologies but well-recognized benign courses. Fried egg nevus is one.

MRSA: In most instances of severe skin and adjoining structure infection, assume MRSA and choose initial antibiotics accordingly.

Primary cutaneous squamous cell carcinoma: the appearance of this lesion alone suggests the proper diagnosis.

A 56-year-old man is worried about a number of slowly growing facial bumps. There are several under each eye and one on each side of the nose. He is convinced that these are skin cancers.

“Nonspecific” intertrigo: the morphology (borders that aren’t sharp, absence of satellite lesions) is a key diagnostic clue.

Heterochromia iridis may be inherited or acquired. Acquired heterochromia may be caused by chronic uveitis, or (rarely) an underlying neuroblastoma. Here: a case in point.

The prognosis for individuals with this disorder depends on the severity of symptoms.

Are these lesions skin cancers, as this patient believes?

The diagnosis in this case turned out to be a surprise: what are your suspicions?

Although this patient has been treated by several health care providers for this expanding lesion on his scalp, nothing has worked. The pathology is clearly outside the “normal” realm. What’s going on?

Here: Ted Rosen, MD, presents 5 tips about 5 skin disorders that you might not know.

A 38-year-old openly homosexual man presented with cough and multiple asymptomatic skin lesions on his face.

A 42-year-old homemaker noticed a discoloration on her palm. There were no symptoms, but she was greatly perturbed by her inability to wash this “dirt” off her skin . . .

Here: Dr Rosen presents 5 tips about 5 skin disorders that you might not know.

Here: Dr Rosen presents 5 tips about 5 skin disorders that you might not know.

A 24-year-old woman presented with a chief complaint: “Check a funny mole.” Her boyfriend pointed out that a single mole on her back looked “different.”

This 66-year-old black woman presented with a 2-year history of a painless skin eruption. She stated that her skin had “changed overnight” while she was caring for her mother who had been hospitalized.

Here: Ted Rosen, MD, presents 5 tips about 5 skin disorders that you might not know.