A 35 Y/O F c/o a pruritic, erythematous rash with scaling on her neck x10D. The rash has a linear and pendulous distribution corresponding to where she wears a new piece of metallic jewelry. O/E: Erythema, papules, and mild excoriations are noted in a defined pattern on the anterior neck. The patient has no Hx of atopy or psoriasis.What is the most appropriate next step in management?

A 4th-year medical student is on a dermatology rotation and is asked by the attending physician to identify the primary lesion associated with several common skin conditions. Which of the following options correctly pairs the primary dermatologic lesion with its representative disease?

A 35 Y/O hairdresser presents with a chronic, fissured hand rash x8mo, unresponsive to topical steroids. O/E: Lichenified, erythematous plaques on the dorsal hands. Her work involves constant exposure to hair dyes and chemicals. No Hx of atopy.What is the most appropriate Ix to identify the causative agent?

34 Y/O M photographer c/o hypopigmented forearm patches appearing after darkroom work. Hx: transient, scaly red papules precede the white marks. Flares occur after eating shellfish. Positive family Hx of atopy. O/E: >8 small, ill-defined hypopigmented macules on bilateral dorsal forearms.What is the most likely diagnosis?

A 35-year-old male presents with an itchy rash on his elbows and knees that has been present for 6 months. On examination, there are well-demarcated, red plaques covered with silvery scales. When a scale is removed, pinpoint bleeding occurs (positive Auspitz sign). Examination of his mouth reveals the oral mucosa is clear.What is the most likely diagnosis?

A 24 Y/O M c/o an intensely itchy rash on his chest and back x3D. Hx reveals he frequently uses a hot tub at his gym after workouts. O/E: Multiple, discrete, erythematous follicular papules and pustules are noted across the chest and upper back. No comedones are present. Vitals are stable, and he is afebrile.What is the most likely causative organism?

A 34 Y/O F with moderate papulopustular perioral dermatitis shows no improvement after 4 weeks of topical metronidazole and complete cessation of all facial creams. The rash remains inflamed and distressing to the patient.What is the most appropriate next step in Rx?

A 68 Y/O F presents to the clinic c/o a painful rash on her L forearm x3D. The rash was preceded by a 2-day Hx of intense burning & tingling in the same area. O/E, vitals are stable. Examination of the L arm reveals clusters of vesicles on an erythematous base. The lesion is arranged in a linear, band-like distribution that extends from the forearm to the index and middle fingers and does not cross the midline.What is the most likely Dx?

21 Y/O M c/o a perioral rash x4D. Hx reveals the lesions began as small vesicles that ruptured. O/E, there are multiple golden, "honey-crusted" lesions on an erythematous base around his mouth. He is afebrile.What is the most likely Dx?