Multiple Halo Nevi Induced by Intense Sun Exposure
JDD authors present the case of a 38-year-old male who reported to their practice with multiple newly developed halos around 26 existing nevi on his trunk. The halo nevi developed after the patient, who lived in the northeast, spent 2 months on a lake in Alabama, with intense heat and sun exposure. This case is remarkable in that it points to ultraviolet exposure as one instigating factor in the …
JDD authors present the case of a 38-year-old male who reported to their practice with multiple newly developed halos around 26 existing nevi on his trunk. The halo nevi developed after the patient, who lived in the northeast, spent 2 months on a lake in Alabama, with intense heat and sun exposure. This case is remarkable in that it points to ultraviolet exposure as one instigating factor in the … Continue reading "Multiple Halo Nevi Induced by Intense Sun Exposure"
Pretibial myxedema (PTM) is a rare complication of Graves' disease. It is characterized by non-pitting edema with hyperpigmented hyperkeratotic papules and plaques on bilateral lower legs. Effective treatments for patients with PTM are lacking. The etiology of PTM is unknown; however, it may be similar to the mechanism of thyroid-associated ophthalmopathy (TAO). Activated fibroblasts produce infla … 
INTRODUCTION
Benign Familial Pemphigus, or Hailey-Hailey Disease (HHD), affects intertriginous areas of the skin causing epidermal blistering and vesicles that coalesce into weeping and crusting plaques.¹
The loss-of-function mutation of the ATP2C1 gene causes a disruption in calcium homeostasis of keratinocytes. The resulting dysfunction in desmosomes and cell-cell adhesion causes acanthol … 
JDD authors Mihir Shah MD, Jenna Wald MD, and C. William Hanke MD MPH present a case of a patient with eruptive squamous cell carcinomas following treatment with Fludarabine to highlight not only the risk of cSCC in CLL patients and the increased risk for atypical cutaneous malignancies after treatment with systemic therapies such as fludarabine, but also to discuss treatment options for this … 
Perifolliculitis capitis abscedens et suffodiens or dissecting cellulitis (DC) is a rare and chronic disease with a predilection for the occipital, vertex, and parietal scalp. DC is characterized by multinodular lesions with purulent drainage and sinus tract formation. It is classically seen in middle-aged males of African descent. The etiology of the disease is unknown; however, leading theories …