Previously published Photo Quizzes are now featured in a mobile app. Get more information at http:// www.aafp.org/afp/apps. A 33-year-old man presented with asymptomatic blue-gray lesions on both feet. The lesions started developing six months earlier, getting darker and larger over time. He was using naproxen, tretinoin cream (Retin-A), and oral minocycline (Minocin). Physical examination reve...

Notalgia paresthetica (NP) is a sensory neuropathic syndrome of the back skin, classically of the unilateral infrascapula. It is primarily a localized pruritus syndrome. Notalgia paresthetica was first named in 1934 and described as episodic itching or pain on a small patch of the mid back, usually an area of skin just past easy reach. Additional features of Notalgia paresthetica may include lo...

Background: The description on patients with pigmented back patches is rarely reported in the literature. We decided to study the clinicopathological aspects of these patients for reaching a better understanding of this disease.Method: In this study, the clinicopathological aspects and probable responsible factors in the manifestation of posterior pruritic pigmented patches in patients referred...

Mycosis fungoides (MF) is the most common type of cutaneous Tcell lymphoma. The diagnosis of classic MF is based on a combination of clinical presentation, histopathology, immunohistochemistry, and T-cell monoclonality detected by molecular studies. However, the diagnosis can be difficult in some cases. We report a case of hyperpigmented mycosis fungoides. A 60-year-old woman, phototype IV, pre...

Zinc-responsive acral dermatitis is a rare entity characterized by chronic, persistent, well-defined, hyperpigmented, and hyperkeratotic plaques on the regions of body. One needs to differentiate this disease from its close differentials such as necrolytic migratory erythema pellagra. Herein, we report case zinc-responsive dermatosis in 35-year-old female previously treated with multiple topica...

A 17-year-old man presented with pruritic confluent reticulated erythematous papules and hyperpigmented patches on his shoulders, abdomen and back that he had suffered with for 2 years (Fig. 1a). The condition had not responded to the previous treatments of oral antihistamines and topical steroids. He was reported to have had allergic rhinitis and allergic conjunctivitis, and these conditions s...

Reticulate acropigmentation of Kitamura (RAK) and Dowling-Degos Disease (DDD) are rare genodermatosis inherited as an autosomal dominant trait with variable penetrance. They are part of a spectrum of diseases with hyperpigmented macules coalescing in a reticular pattern, facial and palmoplantar pits, breaks in dermatoglyphics, comedo-like lesions and epidermoid cysts, and a unique histological ...