Melanoma-or Look-Alike?
Do you suspect this hard nodule to be a melanoma?
Verucca-or Something Else?
The differential diagnosis consists of psoriasis, wart, eczema, squamous cell carcinoma in situ, and prurigo nodularis. What’s your diagnosis?
Slowly Progressive Pearly Papule
This long-standing papule has been slowly enlarging. Its pearly translucence suggests a skin cancer. What's your impression?
Cat Nip in an Immunocompromised Owner
A large, red, tender plaque developed after a cat bite in a woman with Crohn disease. What now?
Red in the Face: What Cause?
Spider bite? Virus? Inflammatory disease? Or, something else?
Too old for acne?
Chicken pox? Lupus? Impetigo? Your dx?
From Holding a Pen Too Long?
Is the nail dystrophy secondary to trauma, or something else?
White Knuckles
Chalk these lesions up to trauma?
Spot Alert
Dog Named Spot?-or Baby It's Cold Outside?
Fishhook in Boy's Finger
What's the best way to dislodge a fishhook? What if there is bony involvement?
Deformed Fingernail
Is thyroid hormone medication associated with nail plate deformity, or is something else going on?
Blue-Black Nodule
Recent trauma caused this lesion, which had been present since the patient’s birth, to enlarge. What is it?
Lesion on Lower Eyelid
Do you recognize this asymptomatic lesion that had been present for about a week?
Scaly Plaque on the Nose
Is this lesion the result of an injury, as the boy’s mother suspected, or something else?
Painful Red Ear
What caused vesicles and erythema and swelling of left auricle in this HIV-positive patient?
Ulcerated Lesion on Ear
What is this asymptomatic lesion?
