Tzanck Smear of Ulcerated Plaques
A man in his 30s with AIDS presented with acute onset painful scattered umbilicated papulopustules and ovoid ulcerated plaques with elevated, pink borders on the face, trunk, and extremities. What is your diagnosis.
JAMA Dermatology
A Pinpoint Orifice on the Glans Penis of a Young Man
A man in his 30s presents with a 14-year history of purulent penile discharge that has not responded to antibiotics or corticosteroids. A pinpoint orifice is found on the glans penis. What is your diagnosis?
Progressive Generalized Skin Laxity in a Young Woman
A Chinese woman in her late 20s presented with a 20-year history of progressive skin laxity. What is your diagnosis?
Outcome Measures for the Evaluation of Treatment Response in Hidradenitis Suppurativa for Clinical Practice – A HiSTORIC Consensus Statement
Importance Although several clinician- and patient-reported outcome measures have been developed for trials in hidradenitis suppurativa (HS), there is currently no consensus on which measures are best suited for use in clinical practice. Identifying validated and feasible measures applicable to the…
Treatment-Resistant Edematous Annular Plaques and Mild Leukopenia in a Man in His 60s
A man in his 60s presented with a 5-year history of diffuse erythematous, edematous annular plaques, low-grade fevers, and mild leukopenia. What is your diagnosis?
Fever, Pancytopenia, and Tender Erythematous Plaques in a Patient With Multiple Myeloma
A man in his late 60s who had received the first cycle of a chemotherapeutic regimen of ixazomib, lenalidomide, and dexamethasone for multiple myeloma presented to the dermatologic clinic with a 10-day history of fever and tender lesions on the…
Ecchymotic Plaques on the Scalp of a Man in His 80s
A man in his 80s had a 4-week history of progressive weakness and fatigue, with associated development of purple bruiselike lesions on his head. What is your diagnosis?
Pink, Dome-Shaped Papule of the Scalp in a Patient With Multiple Squamous Cell Carcinomas
A 74-year-old man with a history of multiple squamous cell carcinomas presents with a 5-mm bright pink, dome-shaped papule with overlying vessels at the crown of the scalp. What is your diagnosis?
Long History of Multiple Painless Scalp Nodules in a Middle-aged Woman
A woman in her late 40s presented with a 40-year history of hard nodules on the scalp, feet, trunk, and lower extremities. What is your diagnosis?
Numerous Ulcerated Plaques of the Trunk and Extremities in a Patient Receiving Long-term Hydroxyurea Therapy
A woman in her 80s initially presented with numerous, primarily photodistributed, crusted, and ulcerated plaques of the trunk and extremities and a medical history of essential thrombocytosis treated with hydroxyurea for 14 years. What is your diagnosis?
