BACKGROUND Pityriasis lichenoides is a papulosquamous disorder of unknown etiology with remissions and exacerbations. Histopathology helps greatly in the diagnosis of this condition. AIM We studied clinical and histopathological features of pityriasis lichenoides in our patients. METHODS This is a 3-year retrospective and prospective, descriptive study of all patients clinically diagnosed a...

Dear Editors: Pityriasis lichenoides-like mycosis fungoides (MF) is a rare variant of MF, presenting clinical findings pityriasis lichenoides (PL) but histological features MF [...]

Yaumatei Dermatology Clinic, 12/F, Yaumatei Specialist Clinic, 143 Battery Street, Kowloon, Hong Kong Pityriasis lichenoides chronica belongs to a group of disease collectively called pityriasis lichenoides. This disease generally runs a benign but protracted course. In this report a 9-year-old boy who has this condition for one year was described. Pityriasis lichenoides with emphasis on its ch...

Pityriasis lichenoides is an uncommon, acquired, idiopathic, self-limiting skin disease that poses a challenge to patients and clinicians to diagnose and treat. Several variants exist including pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC), and febrile ulcer-onecrotic Mucha-Habermann disease. Precise classification can be difficult due to an overla...

Pityriasis lichenoides is an uncommon, acquired, papulosquamous disorder that exhibits various clinical presentations, including acute, chronic, and febrile ulceronecrotic Mucha- abermann forms. Pityriasis lichenoides chronica (PLC) is the chronic form of this continuum. Its treatment is challenging for patients and clinicians and some cases are multidrug resistant. Today, this disorder has man...

Introduction. Pityriasis lichenoides is a rare, acquired spectrum of skin conditions of an unknown etiology. Case Report. A 28-year-old man presented with recurrent outbreaks of herpes simplex virus associated with the onset of red-to-brown maculopapules located predominantly in trunk in each recurrence. Positive serologies to herpes simplex virus type 2 were detected. Histopathological examina...

The etiology of pityriasis lichenoides is unknown. One of the accepted theories admits that PL is an inflammatory response to extrinsic antigens such as infectious agents, drugs and vaccines. In recent medical literature, only the MMR vaccine (Measles, Mumps and Rubella) was associated with the occurrence of this disease. We present a case of a male, 12 year old healthy patient who, five days a...