3,257 results match your criteria Pityriasis
Mikrobiyol Bul 2018 Apr;52(2):214-220
Selçuk University Faculty of Veterinary, Department of Parasitology, Konya, Turkey.
Demodicosis is an ectoparasitic cutaneous infestation of pilosebaceous unit caused by Demodex mites. Demodex spp. are considered to be pathogenic when they increase in number and infect dermis. Read More
Singapore Med J 2018 Jun 21. Epub 2018 Jun 21.
Department of General Medicine, Sengkang General Hospital, Singapore.
Clin Exp Dermatol 2018 Jun 20. Epub 2018 Jun 20.
Mansoura Dermatology, Venerology and Leprology Hospital, 5 Amien Alsamanoudy Street, from AbdelsalamAaref Street, Mansoura, Egypt.
Ann Dermatol Venereol 2018 Jun 11. Epub 2018 Jun 11.
Service de dermatologie, Universitair Ziekenhuis Brussel, (UZ Brussel), Vrije Universiteit Brussel (VUB), Laarbeeklaan 101, Bruxelles, Belgique.
Background: Pityriasis rubra pilaris (PRP) is a cutaneous syndrome of unknown origin. Most cases are sporadic and acquired. Herein we report a fifth case of PRP-like eruption associated with ponatinib, a tyrosine kinase inhibitor (TKI). Read More
Cutis 2018 May;101(5):367-369
Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York, USA.
Refractory pityriasis rubra pilaris (PRP) often is treated off-label with the same biologic therapies that are approved for the treatment of psoriasis, most commonly tumor necrosis factor (TNF) α antagonists and ustekinumab; however, the IL-17A antagonist secukinumab also has shown efficacy in the treatment of PRP. We report 2 new cases of severe refractory PRP that responded rapidly to treatment with secukinumab. Read More
JAAD Case Rep 2018 Mar 9;4(2):206-210. Epub 2018 Feb 9.
Department of Dermatology, Icahn School of Medicine at Mount Sinai, New York, New York.
Br J Clin Pharmacol 2018 Jun 7. Epub 2018 Jun 7.
Centre for Human Drug Research, Leiden, the Netherlands.
Aims: To explore the potential of the skin microbiome as biomarker in six dermatological conditions i.e. atopic dermatitis (AD), acne vulgaris (AV), psoriasis vulgaris (PV), hidradenitis suppurativa (HS), seborrheic dermatitis/pityriasis capitis (SD/PC) and ulcus cruris (UC). Read More
Pan Afr Med J 2018 12;29:25. Epub 2018 Jan 12.
Centre d'Anatomopathologie Hassane, Rabat, Maroc.
Pityriasis lichenoides is a rare inflammatory dermatosis occurring in young subjects. It evolves into rashes on the trunk and the limbs which regress spontaneously. We here report a particular case of pityriasis lichenoides whose diagnosis was adjusted due to the scar appearance of the lesions. Read More
Case Rep Dermatol 2018 May-Aug;10(2):97-100. Epub 2018 May 2.
Department of Dermatology, Kepler University Hospital Linz, Linz, Austria.
Pityriasis rubra pilaris is an inflammatory dermatologic disorder of unknown cause and often confounded with psoriasis. It is characterised by hyperkeratotic follicular papules, scaly erythematous plaques, palmoplantar keratoderma, and a progression to generalised erythroderma. Here, we report the case of a 68-year-old man with pityriasis rubra pilaris, who was successfully treated with ixekizumab, an interleukin-17A inhibitor. Read More
Am J Surg Pathol 2018 May 30. Epub 2018 May 30.
Research Unit Dermatopathology, Department of Dermatology, Medical University of Graz, Graz, Austria.
Pityriasis lichenoides (PLs) is an uncommon skin disease of unknown etiology. In recent years, an atypical form of PL has been described, showing overlapping features with mycosis fungoides (MF) and lymphomatoid papulosis. We studied 66 patients with an initial histopathologic diagnosis of PL (M:F=34:32; median age, 25 y; range, 7 to 85 y). Read More
Clin Exp Dermatol 2018 May 30. Epub 2018 May 30.
Department of Dermatology, The Center for Cutaneous Oncology, Dana-Farber Cancer Institute and Brigham and Women's Hospital, Boston, MA, USA.
Background: Phosphoinositide 3-kinase (PI3K) inhibitors are a class of small-molecule inhibitors approved for the treatment of certain leukaemias and lymphomas. Their dermatological adverse event profile is poorly described.
Aim: To characterize a rare cutaneous adverse event from PI3K inhibitors in order to help dermatologists and oncologists identify and effectively manage such eruptions. Read More
Clin Exp Dermatol 2018 May 23. Epub 2018 May 23.
Department of Dermatology, Kyorin University School of Medicine, Tokyo, Japan.
Although numerous infective agents, including varicella zoster virus (VZV), have been described in association with pityriasis lichenoides et varioliformis acuta (PLEVA) and pityriasis lichenoides chronica (PLC), none has been identified consistently in these lesions. We sought to immunohistochemically identify VZV glycoprotein (g)E antigens in the vascular endothelium in PLEVA and PLC lesions, based on our previous observation that gE was detected in the vascular endothelium and eccrine unit up until 2 months and 2.5, respectively, years after herpes zoster (HZ) infection. Read More
Malays Fam Physician 2018 30;13(1):49-51. Epub 2018 Apr 30.
MRCP (UK), Adv. M Derm (UKM) Faculty of Medicine, Universiti Teknologi MARA, Sungai Buloh Campus, Selangor Malaysia. E-mail:
Clin Exp Dermatol 2018 May 20. Epub 2018 May 20.
Department of Dermatology, Ysbyty Gwynedd, Bangor, UK.
Int J Dermatol 2018 Jul 17;57(7):759-762. Epub 2018 May 17.
Department of Dermatology, Venereology and Laser, Laser King Hussein Medical Center, Amman, Jordan.
Background: Pityriasis rotunda is a rare skin disease characterized by the presence of multiple, round or oval, sharply demarcated hyperpigmented scaly patches. It has been described in Japan, South Africa, and in some other countries. The cause of pityriasis rotunda is usually idiopathic but may be associated with certain internal malignancy or systemic diseases. Read More
Evid Based Complement Alternat Med 2018 27;2018:6816981. Epub 2018 Mar 27.
Department of Scientific Research, The First Affiliated Hospital, Xi'an Medical University, Xi'an, China.
Pityriasis rosea (PR), a skin rash, causes substantial discomfort in patients. There is a lack of effective therapies for PR. A combination of ultraviolet irradiation and treatment has been shown to be a safe and effective regime for control of PR; however, the data have been largely inconsistent. Read More
Skin Appendage Disord 2018 Apr 10;4(2):61-66. Epub 2017 Aug 10.
Department of Dermatology, University of São Paulo Medical School, São Paulo, Brazil.
Introduction: Lichen planopilaris (LPP) is a lymphocytic primary cicatricial alopecia presenting with scarring hair loss and variable degrees of perifollicular erythema and scaling. Pustules are infrequent and may mimic folliculitis decalvans (FD) and other forms of neutrophilic alopecia. We present a series of LPP cases with pustules and discuss the importance of differentiating them from primary neutrophilic folliculitis. Read More
J Cutan Med Surg 2018 May 1:1203475418775378. Epub 2018 May 1.
2 Pediatric Dermatology, Department of Pediatrics, University of Alberta, Edmonton, AB, Canada.
Pityriasis rubra pilaris (PRP) is an uncommon papulosquamous dermatosis characterized by follicular, erythematous, hyperkeratotic papules coalescing to salmon-coloured plaques with islands of sparing. The disease tends to be self-limited and resolves spontaneously after a few years. In some cases, the disease is persistent. Read More
J Mycol Med 2018 May 9. Epub 2018 May 9.
Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra, 43400 UPM Serdang, Selangor, Malaysia; Halal Products Research Institute, Universiti Putra, 43400 UPM Serdang, Selangor, Malaysia. Electronic address:
Background: Malassezia furfur is lipodependent yeast like fungus that causes superficial mycoses such as pityriasis versicolor and dandruff. Nevertheless, there are no standard reference methods to perform susceptibility test of Malassezia species yet.
Aims: Therefore, in this study, we evaluated the optimized culture medium for growth of this lipophilic yeast using modified leeming-Notman agar and colorimetric resazurin microtiter assay to assess antimycotic activity of fluconazole against M. Read More
J Eur Acad Dermatol Venereol 2018 Apr 28. Epub 2018 Apr 28.
Research Group Dermatology, Department of Biomedicine, University Hospital Basel and University of Basel, Basel, Switzerland.
The familial form of pityriasis rubra pilaris (PRP) is caused by dominant mutations in the coiled-coiled domain of CARD14 . Different variants in CARD14 have been associated with psoriasis . As some PRP-causing and psoriasis-associated CARD14 variants showed increased NF-κB activation , inappropriate NF-κB-regulation is thought to be involved in the development of both diseases. Read More
Pediatrics 2018 May 19;141(5). Epub 2018 Apr 19.
Laboratoire de Virologie EA3610, University Lille and Faculté de Médecine, Centre Hospitalier Régional Universitaire de Lille, Lille, France.
Pityriasis rosea (PR) usually presents as acute exanthema with oval erythematous-squamous lesions localized on the trunk, arms, and legs with spontaneous remission. We present an unusual case of PR with frequent relapses during a period of 7 years. An 11-year-old white female patient presented with many pruritic erythematous oval lesions on her trunk. Read More
Clin Cosmet Investig Dermatol 2018 6;11:141-148. Epub 2018 Apr 6.
Department of Dermatology, Tokyo Women's Medical University, Tokyo, Japan.
Objective: Dry and scaly conditions on the scalp are often observed in patients with atopic dermatitis, seborrheic dermatitis and/or pityriasis capitis. Those scalp lesions often exhibit low barrier function and reduced ceramide levels. Therefore, a clinical study was conducted to evaluate the efficacy of topical application of a pseudo-ceramide and eucalyptus extract-containing lotion on the scalps of patients with skin diseases. Read More
Indian Dermatol Online J 2018 Mar-Apr;9(2):131-132
Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Int Marit Health 2018 ;69(1):22-27
Graduate School of Health Engineering, 24 rue Lafontaine, Quartier Racine, 20100 Casablanca, Morocco.
Background: The main objective was to evaluate the prevalence of skin diseases amongst fishermen, to specify the different clinical forms, associations and most frequent localisations, and to identify potential aetiological factors. The secondary objectives were to assess the knowledge, attitudes and practices of seafarers regarding occupational dermatoses to conduct information, awareness and education campaigns on risk factors and behaviours and to propose adapted prevention.
Materials And Methods: This cross-sectional survey involved 1102 artisanal fishermen who attended the annual legal medical consultation at the occupational health service. Read More
J Am Acad Dermatol 2018 Mar 30. Epub 2018 Mar 30.
Rare Disease Unit, I Dermatology Division, Istituto Dermopatico dell'Immacolata, IRCCS, Rome.
Pityriasis rubra pilaris (PRP) is a rare inflammatory papulosquamous skin disease that is often refractory to conventional therapies. The off-label use of biologics, such as anti-tumor necrosis factor, anti-interleukin (IL) 12/IL-23, and anti-IL-17 agents, has been proven successful in the past 2 decades for PRP treatment. Our aim was to analyse the literature for the use of biologics in PRP treatment. Read More
J Cutan Pathol 2018 Jul 23;45(7):491-497. Epub 2018 Apr 23.
National Skin Centre, Singapore.
Background: There are patients with recalcitrant psoriasiform plaques that do not fit into conventional categories of facial dermatoses. Our study aims to describe the clinicopathological characteristics of several patients with a unique presentation of persistent psoriasiform facial rashes.
Methods: This retrospective cross-sectional study analyzed clinical and histological data of known cases of recalcitrant psoriasiform dermatosis of the face diagnosed at National Skin Centre, Singapore, over 10 years. Read More
Mycoses 2018 Mar 30. Epub 2018 Mar 30.
Dermatology Resident, Fundación Universitaria Sanitas, Centro Dermatológico Federico Lleras Acosta, E.S.E., Bogotá, Colombia.
A cross-sectional descriptive study was conducted at a dermatology referral centre in Bogotá, to estimate the frequencies and aetiologies of mycoses in the population under 18 years of age attending the medical mycology laboratory over a 13-year period (2000-2012). A total of 1337 samples from 1221 patients were evaluated, involving direct examination and culture for 1279 samples, direct examination alone for 50 and culture alone for 8. During the study period, dermatophytosis was diagnosed via culture in 537 cases (40. Read More
Postepy Dermatol Alergol 2018 Feb 20;35(1):116-117. Epub 2018 Feb 20.
Department of Dermatology, IRCCS A.O.U. San Martino-IST, Genoa, Italy.
Int J Dermatol 2018 Jul 24;57(7):849-855. Epub 2018 Mar 24.
Luanda Medical Center, Luanda, Angola.
Background: Prevalence of skin diseases in Luanda (Angola) is unknown, and publications are barely found in the literature. We aim to describe, for the first time, the frequency of skin disease spectrum in phototype V-VI Angolan population in Luanda City.
Methods: We included Fitzpatrick phototype V-VI Angolan patients who consulted the Dermatology Unit in Luanda Medical Center during a 1-year period. Read More
Br J Clin Pharmacol 2018 May 9;84(5):1077-1080. Epub 2018 Mar 9.
Department of Experimental Pathology, Immunology and Microbiology, Faculty of Medicine, American University of Beirut Medical Center, Beirut, Lebanon.
A 30-year-old pregnant female presented with a 2-week history of pityriasis rosea-like eruption. The rash started 2 days after the patient had started taking ondansetron 8 mg for alleviation of moderate-to-severe nausea and vomiting of pregnancy. Physical examination revealed erythematous papulosquamous lesions characterized by annular scaly margins and a dusky centre over the arms, chest, abdomen, lower back and legs. Read More
J Am Acad Dermatol 2018 Mar 5. Epub 2018 Mar 5.
Division of Dermatology, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, California, USA. Electronic address:
J Dermatol 2018 Mar 6. Epub 2018 Mar 6.
Department of Dermatology, The Jikei University School of Medicine, Tokyo, Japan.
Br J Dermatol 2018 Mar 5. Epub 2018 Mar 5.
Division of Microbiology, Department of Pathology, University of Porto, Porto, Portugal.
Cureus 2017 Dec 19;9(12):e1961. Epub 2017 Dec 19.
Department of Dermatology, University of California, San Diego.
Scabies, a mite infestation caused by 'Sarcoptes scabiei', most commonly presents as pruritic linear burrows where the mite has invaded the skin. Scabies variant such as bullous, crusted, hidden, incognito, nodular and scalp-mimic the other conditions. In addition, atypical presentations of scabies can masquerade as dermatitis herpetiformis, ecchymosis, Langerhans cell histiocytosis, systemic lupus erythematosus, urticaria, and urticaria pigmentosa. Read More
J Am Acad Dermatol 2018 Mar 1. Epub 2018 Mar 1.
Department of Dermatology, Yale University School of Medicine, New Haven, Connecticut; Department of Genetics, Yale University School of Medicine, New Haven, Connecticut; Department of Pathology, Yale University School of Medicine, New Haven, Connecticut. Electronic address:
Background: Heterozygous mutations in caspase recruitment domain family member 14 gene (CARD14) have been shown to be associated with psoriasis and familial pityriasis rubra pilaris (PRP). Many subjects with CARD14 mutations display features of both disorders, which can result in diagnostic uncertainty. In addition, these eruptions are often recalcitrant to conventional psoriasis therapies such as methotrexate, oral retinoids, and tumor necrosis factor-α inhibitors. Read More
Dermatol Online J 2017 Aug 15;23(8). Epub 2017 Aug 15.
Department of Dermatology, IRCCS AOU San Martino, Genoa, Italy.
Pityriasis rosea (PR) may have atypical presentations as regards morphology and distribution of the lesions. Recently, several forms of PR considered atypical for the course of the disease have been described. Differently from the typical PR that resolves within 2-12 weeks, relapsing and persistent PR forms (lasting longer than 12 weeks) have been described in adults and children. Read More
Cureus 2017 Dec 11;9(12):e1936. Epub 2017 Dec 11.
Department of Dermatology, University of California, San Diego.
Erythroderma is characterized by erythema involving greater than 90% of the body surface area and may be caused by several etiologies, including erythrodermic psoriasis. Psoriasis is an autoimmune skin and systemic condition characterized by erythematous and scaly plaques. Monoclonal B-cell lymphocytosis is an asymptomatic hematological disorder diagnosed by elevated, small, clonal B-cell counts in the peripheral blood. Read More
Dermatol Online J 2017 Nov 15;23(11). Epub 2017 Nov 15.
Department of Pathology and Laboratory Medicine, Weill Cornell Medicine, New York, New York.
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. Read More
BMJ Case Rep 2018 Feb 11;2018. Epub 2018 Feb 11.
Department of Dermatology, St Vincent's University Hospital, Dublin, Ireland.
Pediatr Dermatol 2018 Mar 13;35(2):e124-e127. Epub 2018 Feb 13.
Division of Dermatology, College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia.
Oral lesions are rarely reported in patients with pityriasis rosea. We report a case of a 3-year-old boy with clinical evidence of generalized pityriasis rosea who developed asymptomatic oral lesions similar in appearance to geographic tongue. The generalized eruption and tongue lesions resolved simultaneously within 4 weeks. Read More
Am Fam Physician 2018 Jan;97(1):Online
Am Fam Physician 2017 Dec;96(12):797-804
Norton Audobon Hospital, Louisville, KY, USA.
Pigmentation disorders are commonly diagnosed, evaluated, and treated in primary care practices. Typical hyperpigmentation disorders include postinflammatory hyperpigmentation, melasma, solar lentigines, ephelides (freckles), and café au lait macules. These conditions are generally benign but can be distressing to patients. Read More
J Dermatol Sci 2018 May 1;90(2):105-111. Epub 2018 Feb 1.
Department of Dermatology, Fujita Health University School of Medicine, Toyoake, Japan.
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). Read More
G Ital Dermatol Venereol 2018 Feb 7. Epub 2018 Feb 7.
Department of Health Sciences, A. Avogadro University of Eastern Piedmont, Novara, Italy.
Hautarzt 2018 May;69(5):401-407
Institut für Versorgungsforschung in der Dermatologie und bei Pflegeberufen (IVDP), Universitätsklinikum Hamburg-Eppendorf (UKE), Martinistr. 52, 20246, Hamburg, Deutschland.
Background: The prevention, early diagnosis and treatment of onychomycosis is of great importance for professional athletes to avoid physical limitations by complications. So far, there is only little data on the prevalence of dermatomycosis in professional athletes.
Objectives: The aim of the study was to detect the prevalence of dermatomycosis in professional football players compared to the general population. Read More
Eur J Dermatol 2018 Feb;28(1):128-129
Department of Dermatology.