Featured Derm Dx

Derm Dx: Multiple white papules on the penis

A 30-year-old African-American man is evaluated for lesions on his penis.

Derm Dx: A hyperkeratotic plaque on the left temple

A 63-year-old male was referred for evaluation and treatment of a lesion that arose on his left temple.

Derm Dx: A nodule on the forearm

A 70-year-old man requests treatment for a lesion of his left forearm.

Derm Dx: A lesion on the lip

A 55-year-old man requests removal of a lesion affecting the vermilion border of his left lip commissure.

Derm Dx: A rare type of urticaria

A 30-year-old man presents with a 5-year history of an episodic rash.

Derm Dx: A nodule on the scalp since childhood

A 39-year-old woman requests removal of a growth on her scalp.

Derm Dx: Asymptomatic hyperkeratotic papules

A 51-year-old man with limited mentation is referred for evaluation of 2 papules on his back.

Derm Dx: A large ulceration and tortuous varicosities

A 90-year-old woman presents for evaluation and treatment of an ulceration that has been on her left leg for >1 year.

Derm Dx: A lesion on the scalp

The patient is an 86-year-old woman who presents for evaluation of a growth on her scalp.

Derm Dx: An uncommon neoplasm

A 63-year-old white woman presents for evaluation of a bump on her left foot.

Derm Dx: Comedones on the cheeks

A 79-year-old man presents for treatment of a forehead cyst that has been excised surgically.

Derm Dx: An uncommon pruritic eruption

A 53-year-old nurse presents for evaluation of a minimally pruritic eruption affecting her arms and legs that has been present for 5 months.

Derm Dx: Plaques, joint deformity of the hands

A 45-year-old woman with a previously diagnosed pruritic skin condition presents with significant joint deformity that has developed slowly over the past 10 years.

Derm Dx: A farm worker with a growing lesion

A 70-year-old man presents with a 1-month history of an enlarging, irregularly pigmented macule on his forehead.

Derm Dx: Warty plaques in a unilateral pattern

A 13-year-old boy presents with nonpruritic, hyperpigmented warty papules and plaques.

Derm Dx: Intensely itchy purple papules

A 32-year-old woman presents with a 3-week history of an itchy rash covering her whole body.

Derm Dx: Papules and multiple endocrine neoplasia type 1

A 32-year-old white woman with a history of multiple endocrine neoplasia type 1 presents with multiple oval hypopigmented papules on her trunk and limbs.

Derm Dx: Pruritic hyperpigmentation of the lips

A 22-year-old woman presents with pruritic hyperpigmentation of her upper and lower lips that began approximately 2 weeks previously.

Derm Dx: Erythematous nodules after heart transplant

A 50-year-old woman who previously underwent a heart transplant presents to the clinic with nonpainful, nondraining erythematous nodules on her trunk and extremities.

Derm Dx: Refractory dermatitis in a man on chemotherapy

Chemotherapy was initiated in a 68-year-old man with metastatic lung cancer.

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