Sensitivity to Eye Drop Solution
Man with pruritic, edematous eruption of the upper and lower eyelids.
Tinea Corporis in a 37-Year-Old Man
This itchy, scaly rash extending from the underarm onto the upper arm was tinea corporis.
Bullous Pemphigoid in an Older Adult
The tense bullae shown here and the chronicity of the disease should suggest the diagnosis of bullous pemphigoid.
Traumatic Tattoo: A Melanoma Mimic
The almost black nature of the lesion arouses suspicion for melanoma. A conservative excisional biopsy revealed this to be a traumatic tattoo, however.
Allergic Reaction to Conducting Gel Used Under ECG Electrodes
An 80-year-old-woman was seen as an inpatient hospital consult. A persistent pruritic eruption had developed acutely on the legs.
Perleche, an Accompanying Sign of Diabetes
These burning red patches around the mouth, known as perleche, are aggravated by aging. Learn how to treat it.
Leukemia Cutis
A 67-year-old woman noted the appearance of several non-tender, rock-hard, purple-colored nodules on her legs. Her past medical history was significant for distant non-Hodgkin lymphoma.
Punch Biopsy Required for Superficial Basal Cell Carcinoma
A 40-year-old man sought advice regarding therapeutic options for an asymptomatic, “red spot” on the flank. Review of systems was entirely negative.
Pyoderma Gangrenosum in a Woman With Crohn Disease, Clinical Depression, and Borderline Diabetes Mellitus
A 56-year-old woman noted the abrupt onset of several very painful ulcerations located on her back. The patient had known (and active) Crohn disease, clinical depression requiring ongoing psychiatric care, and borderline diabetes mellitus.
Infected Acute Cutaneous Injury
A 32-year-old woman presents with a swollen, painful fourth digit on the right hand. While housecleaning, a traumatic erosion developed on the ipsilateral hyponychium.
Basal Cell Carcinoma on Forehead of a 78-Year-Old Man
A 78-year-old man sought medical attention after noting a non-tender, subtle “hole” in his forehead. The firm lesion was asymptomatic.
Allergic Contact Dermatitis From Shampoo
A 63-year-old woman presented for medical attention relating to the acute onset of an intensely pruritic, oozing eruption along the hairline, behind the ears and on the upper face. This eruption followed the first use of a new shampoo product
Neurotic Excoriations
A 56-year-old woman insisted on an “emergency” appointment due to the relentless appearance of pruritic skin “lesions” on the arms and legs. She admitted to manipulating the skin (scratching, picking, gouging) in an attempt to lessen associated itching.
Dental Abscess With Orofacial Sinus Tract
A 59-year-old woman presents for evaluation of a painful, draining neck lesion. She is a native of India and returns to her home country yearly to visit relatives.
Mycobacterium marinum Infection in a 45-Year-Old Woman
A 45-year-old woman noted painless, red, crusted papules on the hand. This was followed by the appearance of deep, slightly tender red nodules on the arm and ipsilateral axillary adenopathy.
Xanthomata Secondary to Hypertriglyceridemia
A 57-year-old obese woman with known and poorly controlled type 2 diabetes presented with the sudden onset of “yellow bumps all over.” Representative lesions on the back and elbows are shown.
Sarcoidosis
A 26-year-old African American woman presents for help with “pimples” on both sides of the nose. She is ostensibly healthy and takes no medications.
Subungual Verucca Vulgaris
A 26-year-old woman notes the insidious onset of an abnormal nail. The nail plate gradually grew away from the underlying nail bed and then began to elevate in a tented fashion.
Classic Pterygium
A 32 year-old man presents with deteriorating thumbnails. He is in good health except for a long-standing seizure disorder that is controlled with phenytoin.
Leukocytoclastic Vasculitis: A Marker of Underlying Malignancy
A 23-year-old man presented for medical attention with these mildly to moderately pruritic lesions located only on his hands. He was in good health and took no medications.
Seborrheic Dermatitis
A 58-year-old man presents for evaluation of a facial rash. He is convinced, from internet research, that he has systemic lupus erythematosus.
Discoid Lupus Erythematosus Mimicking Acne
A 26-year-old African American woman was concerned about the gradual onset of mildly tender, but severely distressing facial lesions located on the face.
Squamous Cell Carcinoma In Situ (Bowen Disease)
With no history of papulosquamous skin disease (eg, psoriasis), a solitary, well-demarcated, bright red scaly patch should suggest either superficial basal cell or in situ squamous cell carcinoma.
Erythema ab Igne in a 50-Year-Old Obese Woman
The husband of this 50-year-old obese woman noted that her back was discolored. Review of past medical history disclosed long-standing low back pain from partially herniated vertebral disks.
Benign Angioma
A 36-year-old woman notes the insidious onset of an asymptomatic lesion located on the scalp. Despite frequently hitting it with a comb or brush, it has never bled.
Pyogenic Granuloma in a 53-Year-Old Woman
A 53-year-old woman felt the underwire in her bra stab the inframammary skin. She covered the ensuing shallow wound with antibiotic ointment under a bandage. The wound was slow to heal, and was ultimately replaced by a friable, oozing papule.
Acute Allergic Contact Dermatitis to Poison Ivy
A 30-year-old woman rapidly developed an intensely pruritic eruption on both legs, that extended from the knees to the upper thighs.
Basal Cell Carcinoma on Face of an 82-Year-Old Woman
An 82-year-old woman presents with a persistent “face sore,” which she ascribed to repeatedly and frequently blowing her nose during a recent upper respiratory infection.
Malignant Melanoma
A 32-year-old woman sought medical attention after noticing a change in the appearance of a mole on her leg.
Coral-Induced Injury
A 26-year-old man cut the dorsum of his wrist on a coral formation while snorkeling in the Caribbean.