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Pityriasis lichenoides

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https://www.readbyqxmd.com/read/29447634/pityriasis-lichenoides-like-drug-reaction-a-clinical-histopathologic-study-of-10-cases
#1
Cynthia Magro, Ruifeng Guo, Giang Huong Nguyen, Hamilton Tsang, Shabnam Momtahen
BACKGROUND: Lymphomatoid drug reactions can mimic endogenous T and B cell lymphoproliferative diseases. OBJECTIVES: We present a novel form of cutaneous drug reaction with features of pityriasis lichenoides (PL), a recognized form of T cell dyscrasia. METHODS: Ten cases were studied where a cutaneous eruption exhibiting semblance to PL within a few weeks to months after starting a particular drug. RESULTS: The patient cohort comprised 7 females and 3 males with the mean age of 60 years...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29422292/autoinflammatory-keratinization-diseases-an-emerging-concept-encompassing-various-inflammatory-keratinization-disorders-of-the-skin
#2
Masashi Akiyama, Takuya Takeichi, John A McGrath, Kazumitsu Sugiura
Classifying inflammatory skin diseases is challenging, especially for the expanding group of disorders triggered by genetic factors resulting in hyperactivated innate immunity that result in overlapping patterns of dermal and epidermal inflammation with hyperkeratosis. For such conditions, the umbrella term "autoinflammatory keratinization diseases" (AIKD) has been proposed. AIKD encompasses diseases with mixed pathomechanisms of autoinflammation and autoimmunity, and includes IL-36 receptor antagonist (IL-36Ra)-related pustulosis, CARD14-mediated pustular psoriasis, pityriasis rubra pilaris (PRP) type V, and familial keratosis lichenoides chronica (KLC)...
February 1, 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29365241/pityriasis-rosea-diagnosis-and-treatment
#3
Jose M Villalon-Gomez
Pityriasis rosea is a common self-limiting rash that usually starts with a herald patch on the trunk and progresses along the Langer lines to a generalized rash over the trunk and limbs. The diagnosis is based on clinical and physical examination findings. The herald patch is an erythematous lesion with an elevated border and depressed center. The generalized rash usually presents two weeks after the herald patch. Patients can develop general malaise, fatigue, nausea, headaches, joint pain, enlarged lymph nodes, fever, and sore throat before or during the course of the rash...
January 1, 2018: American Family Physician
https://www.readbyqxmd.com/read/29349807/possible-role-of-plasmacytoid-dendritic-cells-in-pityriasis-lichenoides
#4
M Karouni, J Abou Rahal, M Kurban, A G Kibbi, O Abbas
BACKGROUND: Plasmacytoid dendritic cells (pDCs) and their product, type I interferons (IFNs), have been implicated in the pathogenesis of several skin disorders characterized by an interface dermatitis (ID) pattern, such as lichen planus (LP). A type I IFN signature has previously been documented in pityriasis lichenoides (PL). Although pDCs are known to be the main source and most potent producers of local type I IFNs, their role in PL has not been investigated. AIM: To investigate the role of pDCs in PL...
January 19, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29315771/pityriasis-lichenoides-long-term-follow-up-study
#5
Julie B Zang, Sarah J Coates, Jing Huang, Eric C Vonderheid, Bernard A Cohen
BACKGROUND/OBJECTIVES: Pityriasis lichenoides is an uncommon papulosquamous disorder of unknown etiology. The objective of this study was to review the clinical features and treatment responses of individuals with pityriasis lichenoides seen at a tertiary referral center. METHODS: Seventy-five patients diagnosed with pityriasis lichenoides between 1997 and 2013 were reviewed, and 46 had long-term follow-up via telephone interviews. RESULTS: Fifty (67%) patients were diagnosed with pityriasis lichenoides chronica, 22 (29%) with pityriasis lichenoides et varioliformis acuta, and 3 (4%) with mixed pityriasis lichenoides chronica and pityriasis lichenoides et varioliformis acuta features...
January 9, 2018: Pediatric Dermatology
https://www.readbyqxmd.com/read/29301808/skin-and-coeliac-disease-a-lot-to-think-about-a-case-series
#6
Sara O Vaz, Catarina Franco, Patrícia Santos, Raquel Amaral
Coeliac disease (CD) is an autoimmune disease, characterised by a permanent sensitivity to gluten. It is being progressively recognised as a multisystemic disease, with multiple extraintestinal manifestations. Skin conditions (eg, dermatitis herpetiformis) are an example of its manifestations; however, its underlying mechanisms are still not well understood. This article presents three cases of uncommon skin conditions in patients with a history of CD. Two of them concern linear IgA bullous dermatosis and erythema nodosum, which have been described in the literature as having potential associations with CD, though only a few cases were reported...
January 4, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29221609/pitiryasis-lichenoides-et-varioliformis-aacuta-associated-with-human-herpesvirus-7
#7
M Costa-Silva, A Calistru, J Sobrinho-Simões, C Lisboa, F Azevedo
Pityriasis lichenoides et varioliformis acuta and pityriasis lichenoides chronica represent 2 ends of a disease spectrum of unknown etiology. Herein we describe 2 cases of pityriasis lichenoides et varioliformis acuta, in which human herpesvirus 7 DNA was detected in skin samples by polymerase chain reaction methodology, an association not previously described. This report may support the involvement of viral infection in the etiopathogeny of this disease.
December 5, 2017: Actas Dermo-sifiliográficas
https://www.readbyqxmd.com/read/29210716/relationship-between-pityriasis-lichenoides-and-mycosis-fungoides-a-clinicopathological-immunohistochemical-and-molecular-study
#8
Hiba Zaaroura, Dvora Sahar, Tova Bick, Reuven Bergman
BACKGROUND: Several cases of pityriasis lichenoides (PL) have been reported to evolve into mycosis fungoides (MF). OBJECTIVE: To elucidate clues to this progression. METHODS: Fifty-eight patients with PL between 2000 and 2013 (follow-up: 3-16 years, average: 8.3). RESULTS: A total of 3 (5.2%) of the 58 patients with PL developed MF after 3-11 years of prolonged clinical course. Papules and small plaques characterized PLs, and patches and larger plaques subsequent MFs...
November 22, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29159666/-polymorphic-and-itchy-rash-in-a-21-year-old-woman
#9
A Kalampalikis, J Tittelbach, P Elsner
Pityriasis lichenoides et varioliformis acuta (PLEVA) is a common inflammatory disease which usually occurs in children and young adults. Characteristic is a polymorph clinical picture with papules, erosions, ulcers and haemorrhagic crusts compatible with many differential diagnoses. We report about a patient with PLEVA and describe possible differential diagnoses.
November 20, 2017: Der Internist
https://www.readbyqxmd.com/read/28243491/pityriasis-lichenoides-et-varioliformis-acuta-in-skin-of-color-new-observations-by-dermoscopy
#10
Balachandra S Ankad, Savitha L Beergouder
BACKGROUND: Pityriasis lichenoides is an uncommon skin disease that presents in three different forms: pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC) and febrile ulceronecrotic-Mucha-Habermann disease. These represent a spectrum of a disease. PLEVA presents as skin eruption of multiple, small, red papules that develop into polymorphic lesions with periods of varying remissions, as well as possible sequels of hyper/hypopigmentation and varicella-like scars...
January 2017: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/28194482/-paraviral-exanthems
#11
REVIEW
R Fölster-Holst, V Zawar, A Chuh
Paraviral exanthems are distinct skin diseases due to infections with different viruses. Although no virus has been identified so far in some exanthems, the main age of manifestation, the clinical course of the exanthem, and the extracutaneous symptoms are suggestive for a viral genesis. While many viral infections are a direct result of the infection, paraviral exanthems reflect the response of the immune system to the infectious pathogens. Viruses cannot be identified in the skin. Typical paraviral exanthems include Gianotti-Crosti syndrome, pityriasis rosea, pityriasis lichenoides, papular-purpuric gloves and sock syndrome, and asymmetrical periflexural exanthema...
March 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28133819/use-of-phototherapy-in-children
#12
Karen Eustace, Sophie Dolman, Ali Alsharqi, Graham Sharpe, Richard Parslew
BACKGROUND: Phototherapy is a well-recognized treatment in adults and children. Previous articles have reported success in treating recalcitrant skin disorders such as atopic dermatitis (AD), psoriasis, pityriasis lichenoides chronica, and vitiligo in children. METHODS: This was a retrospective review over an 18-month period from June 2012 to December 2013 of all children receiving phototherapy in a tertiary pediatric dermatology center. RESULTS: Seventy-five patients 3 to 17 years of age (mean 10...
March 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28111789/treatment-of-adult-diffuse-pityriasis-lichenoides-chronica-with-narrowband-ultraviolet-b-experience-and-literature-review
#13
M Fernández-Guarino, S Aboin-Gonzalez, C Ciudad Blanco, D Velázquez Tarjuelo, P Lázaro Ochayta
Pityriasis lichenoides chronica (PLC) is an infrequent dermatosis of unknown aetiology, wholse evolution and response to treatment differs between children and adults. When PLC is recalcitrant or unresponsive to topical treatment, phototherapy is one of the main treatments used. We carried out a prospective study of adult diffuse PLC treated with narrowband ultraviolet B (NB-UVB). We treated eight patients whose disease showed no response to topical therapy, and obtained a complete response rate of 88% in a mean of 23 sessions (cumulative dose 16...
April 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28060985/-febrile-ulceronecrotic-mucha-habermann-disease
#14
Javier Arellano Lorca, Ignacio Yáñez Silva, Felipe Soto Vilches, Andrea Luna Heine, Yamile Corredoira Salum
Pityriasis lichenoides et varioliformis acuta (PLEVA), pityriasis lichenoides chronica (PLC) and febrile ulceronecrotic Mucha-Habermann disease (FUMHD) are considered different manifestations of the same disease. Febrile ulceronecrotic Mucha-Habermann disease is a rare, and potentially lethal illness which is characterized by fast progression of numerous papules that converge, ulcerate and form a plaque with a necrotic center, together with hemorrhagic vesicles and pustules that are associated with high fever and variable systemic symptoms...
September 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/27746631/pityriasis-lichenoides-like-mycosis-fungoides-clinical-and-histologic-features-and-response-to-phototherapy
#15
Min Soo Jang, Dong Young Kang, Jong Bin Park, Joon Hee Kim, Kwi Ae Park, Hark Rim, Kee Suck Suh
BACKGROUND: Pityriasis lichenoides (PL)-like skin lesions rarely appear as a specific manifestation of mycosis fungoides (MF). OBJECTIVE: We investigated the clinicopathological features, immunophenotypes, and treatments of PL-like MF. METHODS: This study included 15 patients with PL-like lesions selected from a population of 316 patients diagnosed with MF at one institution. RESULTS: The patients were between 4 and 59 years of age...
October 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27638444/phototherapy-in-children-considerations-and-indications
#16
REVIEW
Cary S Crall, Jillian F Rork, Sophia Delano, Jennifer T Huang
Phototherapy can be a safe and effective treatment for various skin diseases in children. Special considerations governing the use of this treatment modality in pediatric populations include patient, family, and facility-based factors that are oriented around heightened concerns with regard to safety and tolerability of treatment. Although phototherapy has been found to be effective in a wide range of dermatologic conditions affecting pediatric populations, including psoriasis, atopic dermatitis, pityriasis lichenoides, cutaneous T-cell lymphoma, and vitiligo, there is need for additional research on other conditions in which phototherapy has shown promise...
September 2016: Clinics in Dermatology
https://www.readbyqxmd.com/read/27617521/successful-treatment-of-pityriasis-lichenoides-chronica-with-narrow-band-ultraviolet-b-therapy-in-a-patient-with-keratitis-ichthyosis-deafness-syndrome-a-case-report
#17
Andac Salman, Dilek Seckin Gencosmanoglu, Ayse Deniz Yucelten, Nursel Elcioglu, Gabriele Richard, Cuyan Demirkesen
Keratitis-ichthyosis-deafness (KID) syndrome is a rare genodermatosis causing ichthyosis-like skin lesions, keratitis, and deafness. Herein, we report a patient with this rare syndrome in association with pityriasis lichenoides chronica, which was succesfully treated with narrow-band ultraviolet B phototherapy despite our concerns regarding the increased risk of squamous cell carcinoma, hyperpyrexia, and keratitis.
May 15, 2016: Dermatology Online Journal
https://www.readbyqxmd.com/read/27613297/dermoscopy-in-general-dermatology-a-practical-overview
#18
REVIEW
Enzo Errichetti, Giuseppe Stinco
Over the last few years, dermoscopy has been shown to be a useful tool in assisting the noninvasive diagnosis of various general dermatological disorders. In this article, we sought to provide an up-to-date practical overview on the use of dermoscopy in general dermatology by analysing the dermoscopic differential diagnosis of relatively common dermatological disorders grouped according to their clinical presentation, i.e. dermatoses presenting with erythematous-desquamative patches/plaques (plaque psoriasis, eczematous dermatitis, pityriasis rosea, mycosis fungoides and subacute cutaneous lupus erythematosus), papulosquamous/papulokeratotic dermatoses (lichen planus, pityriasis rosea, papulosquamous sarcoidosis, guttate psoriasis, pityriasis lichenoides chronica, classical pityriasis rubra pilaris, porokeratosis, lymphomatoid papulosis, papulosquamous chronic GVHD, parakeratosis variegata, Grover disease, Darier disease and BRAF-inhibitor-induced acantholytic dyskeratosis), facial inflammatory skin diseases (rosacea, seborrheic dermatitis, discoid lupus erythematosus, sarcoidosis, cutaneous leishmaniasis, lupus vulgaris, granuloma faciale and demodicidosis), acquired keratodermas (chronic hand eczema, palmar psoriasis, keratoderma due to mycosis fungoides, keratoderma resulting from pityriasis rubra pilaris, tinea manuum, palmar lichen planus and aquagenic palmar keratoderma), sclero-atrophic dermatoses (necrobiosis lipoidica, morphea and cutaneous lichen sclerosus), hypopigmented macular diseases (extragenital guttate lichen sclerosus, achromic pityriasis versicolor, guttate vitiligo, idiopathic guttate hypomelanosis, progressive macular hypomelanosis and postinflammatory hypopigmentations), hyperpigmented maculopapular diseases (pityriasis versicolor, lichen planus pigmentosus, Gougerot-Carteaud syndrome, Dowling-Degos disease, erythema ab igne, macular amyloidosis, lichen amyloidosus, friction melanosis, terra firma-forme dermatosis, urticaria pigmentosa and telangiectasia macularis eruptiva perstans), itchy papulonodular dermatoses (hypertrophic lichen planus, prurigo nodularis, nodular scabies and acquired perforating dermatosis), erythrodermas (due to psoriasis, atopic dermatitis, mycosis fungoides, pityriasis rubra pilaris and scabies), noninfectious balanitis (Zoon's plasma cell balanitis, psoriatic balanitis, seborrheic dermatitis and non-specific balanitis) and erythroplasia of Queyrat, inflammatory cicatricial alopecias (scalp discoid lupus erythematosus, lichen planopilaris, frontal fibrosing alopecia and folliculitis decalvans), nonscarring alopecias (alopecia areata, trichotillomania, androgenetic alopecia and telogen effluvium) and scaling disorders of the scalp (tinea capitis, scalp psoriasis, seborrheic dermatitis and pityriasis amiantacea)...
December 2016: Dermatology and Therapy
https://www.readbyqxmd.com/read/27570820/pityriasis-lichenoides-chronica-like-drug-eruption-developing-during-pembrolizumab-treatment-for-metastatic-melanoma
#19
Krishna A J Mutgi, Mohammed Milhem, Brian L Swick, Vincent Liu
No abstract text is available yet for this article.
July 2016: JAAD Case Reports
https://www.readbyqxmd.com/read/27502793/phototherapy-for-pityriasis-lichenoides-in-the-pediatric-population-a-review-of-the-published-literature
#20
REVIEW
Eric Laurent Maranda, Megan Smith, Austin H Nguyen, Vivek N Patel, Lawrence A Schachner, Jimenez J Joaquin
BACKGROUND: Pityriasis lichenoides (PL) is a dermatologic disorder that manifests in either the acute (pityriasis lichenoides et varioliformis acuta) or the chronic form (pityriasis lichenoides chronica, also known as parapsoriasis chronica). Traditional first-line therapy consists of corticosteroids or antibiotics; however, these treatments are often accompanied with multiple side effects and may be ineffective. OBJECTIVE: The goal of this study was to review the use of phototherapy for treating PL in the pediatric population...
December 2016: American Journal of Clinical Dermatology
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