Dermatology

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 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.”

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

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

A 27 year-old woman was petting her cat, when the animal suddenly bit her on the arm. She rinsed copiously with isopropyl alcohol and applied an over-the-counter antibiotic ointment. But, 12 hours later, a large, red, swollen and exquisitely tender plaque had developed around the bite site.

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

The mother of a 12-year-old boy is concerned about this dark mole on his neck. The asymptomatic lesion has been present for about 3 months.

During the past year, a 48-year-old man has had joint pain as well as this worsening rash on his hands. He is a construction worker, and he attributes the symptoms to his occupational exposure.

For several months, this 64-year-old man has had persistently dry lips despite frequent application of lip balm. He is otherwise healthy, and the lips are asymptomatic except for the dryness.

The mother of this 18-month-old boy brings him to your office for evaluation of a pigmented lesion of 2 months’ duration on the right anterior shoulder. When the lesion is rubbed, it becomes red and inflamed and occasionally a blister forms.

A 56-year-old man has had progressive, erythematous plaques across the forehead and temples for the past few weeks. He describes these areas as “a little itchy and a little tender.”

After 6 weeks of scratching a very itchy, worsening rash on his left leg, a 53-year-old man seeks medical evaluation. He has tried over-the-counter (OTC) topical remedies with no success.

For 3 weeks, a 28-year-old man has had a pruritic, bilateral axillary rash. He stopped using deodorant, but the condition has not improved.