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Porokeratosis

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https://www.readbyqxmd.com/read/28223751/secondary-cutaneous-amyloidosis-in-a-patient-with-mycosis-fungoides
#1
Chan Hee Nam, Min Kee Park, Mi Soo Choi, Seung Phil Hong, Byung Cheol Park, Myung Hwa Kim
Secondary cutaneous amyloidosis refers to clinically unapparent amyloid deposits within the skin in association with a pre-existing skin condition or skin tumors, such as basal cell carcinoma, porokeratosis, solar elastosis, Bowen's disease, and mycosis fungoides. A 70-year-old woman presented with a 6-month history of asymptomatic multiple yellowish plaques on both legs. She had been diagnosed with mycosis fungoides 7 years ago and was treated with psoralen and ultraviolet A radiation (PUVA) therapy, narrow-band ultraviolet B (UVB) therapy, and acitretin for 5 years...
February 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28217872/craniosynostosis-delayed-closure-of-the-fontanelle-anal-genitourinary-and-skin-abnormalities-cdags-syndrome-first-report-in-a-mexican-patient-and-review-of-the-literature
#2
Rodrigo Pastrana-Ayala, Gretty L Peña-Castro, Adriana M Valencia-Herrera, Carlos A Mena-Cedillos, Sonia Toussaint-Caire, Yumiko I Akaki-Carreño, Constanza García-Delgado, Veronica F Morán-Barroso, Mirna Toledo-Bahena
INTRODUCTION: Craniosynostosis and clavicular hypoplasia, delayed closure of the fontanelle, cranial defects, anal and genitourinary abnormalities, and skin (CDAGS), is an infrequent autosomal recessive entity with only 10 cases reported; no associated gene has been identified so far. CASE REPORT: The proband is a 2-year-old Mexican female with brachycephaly, cleft palate, anal malformation with rectovestibular fistula, and clinodactyly of the third toe overlapping the second...
February 19, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28197991/transformation-of-porokeratosis-ptychotropica-into-invasive-squamous-cell-carcinoma
#3
Daniel R Mazori, Marianna Shvartsbeyn, Shane A Meehan, Sara L Tarsis
No abstract text is available yet for this article.
February 15, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28027122/genitogluteal-porokeratosis-in-a-well-woman
#4
Tracy Kristine Foran, Tania Day, Jennifer Bradford, James Scurry
No abstract text is available yet for this article.
January 2017: Journal of Lower Genital Tract Disease
https://www.readbyqxmd.com/read/27904191/a-case-of-psoriasis-encircled-by-porokeratosis
#5
Indrashis Podder, Debabrata Bandyopadhyay
No abstract text is available yet for this article.
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27859984/successful-management-of-disseminated-superficial-actinic-porokeratosis-with-diclofenac-sodium-3-gel
#6
María-Mercedes Otero-Rivas, Romina Rodríguez-Lojo, Iria-Margarita Castiñeiras-Mato, Mercedes Lueiro-Vilariño, Yolanda Juárez-Casado, María-Luisa Fernández-Díaz
No abstract text is available yet for this article.
November 18, 2016: Dermatologic Therapy
https://www.readbyqxmd.com/read/27771123/-circumscribed-palmar-hypokeratosis-cpm-the-diagnostic-value-of-dermoscopy
#7
S Topin-Ruiz, J-M Debarre, E Blanchard, S Kettani, P-J Valmier, L Martin, Y Le Corre
BACKGROUND: Circumscribed palmar hypokeratosis (CPH) is a rare skin disease, first described in 2002, associated with sudden localized reduction of the corneal layer. In most cases, it presents as an isolated rounded erythematous palmar lesion on the thenar eminence. We describe the dermoscopic semiology of CPH in 3 cases. PATIENTS AND METHODS: Three patients between the ages of 59 and 72 presented very limited erythematous lesions suggestive of CPH. Dermoscopic examination of these lesions provided similar findings...
October 19, 2016: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/27741114/mycosis-fungoides-patient-accompanied-actinic-keratosis-actinic-keratosis-with-squamous-cell-carcinoma-transformation-and-porokeratosis-after-nbuvb-therapy-1st-case-report-and-review-of-the-literature
#8
REVIEW
Meng-Jie Zhao, Bilal Abdul-Fattah, Xiao-Ying Qu, Cui-Yan Wang, Xia Wang, Yi Ran, Ting Lai, Si-Yuan Chen, Chang-Zheng Huang
INTRODUCTION: Mycosis fungoides (MF) is the most common form of primary cutaneous T cell lymphoma. Narrowband ultraviolet B light (NBUVB) is used increasingly in treating MF because of its good toleration and well-established management. CONCERNS: To discuss the risk factors and underlying pathogenic factors in the patients with secondary skin diseases after NBUVB therapy. METHODS: We report in details the first case of a patient with MF accompanied with actinic keratosis (AK), AK with squamous cell carcinoma (SCC) transformation and porokeratosis after NBUVB therapy...
October 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/27613297/dermoscopy-in-general-dermatology-a-practical-overview
#9
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/27579746/porokeratosis-ptychotropica-a-rare-manifestation-with-typical-histological-exam
#10
John Verrinder Veasey, Monique Coelho Dalapicola, Rute Facchini Lellis, Adriana Bittencourt Campaner, Thiago da Silveira Manzione, Maria Clarissa de Faria Soares Rodrigues
Porokeratosis is a disorder of epidermal keratinization characterized clinically by a distinctive ridge-like border, and histologically by cornoid lamellae. The known clinical variants of porokeratosis are: classic porokeratosis of Mibelli, disseminated superficial (actinic) porokeratosis (DSAP), porokeratosis palmaris et plantaris disseminata, linear porokeratosis and punctate porokeratosis. In 1995, a seventh form was described as porokeratosis ptychotropica: a verrucous form resembling psoriasis involving the gluteal cleft presenting on the histological exam multiple cornoid lamellae...
July 2016: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/27559506/clinical-and-dermatoscopic-features-of-porokeratosis-palmaris-et-plantaris
#11
Satish Udare, Karishma Hemmady
A dermatoscope is an important tool in a dermatologist's armamentarium as it can eliminate the need for a biopsy in a wide array of conditions. Porokeratosis was described by Mibelli and Respighi in 1893, as a disorder of keratinization which on the basis of distribution patterns was described as five clinical variants that portrayed a coronoid lamella on histopathology. We describe a case of asymptomatic, long-standing palmar and plantar pits, which on dermatoscopy showed features suggestive of porokeratosis, which was later reconfirmed by histopathologic sections...
July 2016: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/27502333/two-cases-of-disseminated-superficial-actinic-porokeratosis-treated-with-daylight-mediated-photodynamic-therapy
#12
Tania Salas, Jesus Hernandez-Gil, Alicia Lopez, Maria Dorado, Javier Ruiz, Esther García, Francisco Martinez
No abstract text is available yet for this article.
November 2016: Dermatologic Therapy
https://www.readbyqxmd.com/read/27468973/disseminated-superficial-actinic-porokeratosis-dsap-significant-improvement-after-local-administration-of-calcipotriol-betamethasone-gel
#13
Georgi Tchernev, Anastasiya Atanasova Chokoeva, Bogdana Ivanova, Hristo Mangarov, Nadezhda Georgieva Vidolova
Porokeratosis is defined as a disorder of keratinization characterized by one or more atrophic patches surrounded by a clinically and histologically distinctive hyperkeratotic ridgelike border called the cornoid lamella. Lesions are most commonly located on the sun-exposed sides of trunk and extremities, while exclusive facial involvement has been also reported. Despite that the exact risk of cutaneous malignancy developing in porokeratosis is unknown, it is confirmed by series of case reports, including squamous cell carcinoma, basal cell carcinoma and even melanoma...
March 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27455025/-disseminated-superficial-actinic-porokeratosis-in-a-pedigree
#14
Guoqiang Zhang, Mingyuan Ren, Si Li, Lu Zhao, Yi Cheng, Yuangzhu Lin, Shunqiang Gao
No abstract text is available yet for this article.
August 2016: Zhonghua Yi Xue Yi Chuan Xue za Zhi, Zhonghua Yixue Yichuanxue Zazhi, Chinese Journal of Medical Genetics
https://www.readbyqxmd.com/read/27422687/mutations-in-the-mevalonate-pathway-genes-in-chinese-patients-with-porokeratosis
#15
M Li, Z Li, J Wang, C Ni, Z Sun, N J Wilson, J Zhang, F Chen, X Li, X Du, H Yu, L Zhang, F J D Smith, G Zhang, Z Yao
BACKGROUND: Porokeratosis (PK, MIM 175800) is a chronic autosomal dominant cutaneous keratinization disorder, which has a wide variety of clinical manifestations. OBJECTIVES: We analysed the molecular basis of 10 families and 12 sporadic cases with different subtypes of porokeratosis in the Chinese population. METHODS: Genomic DNA was extracted from peripheral blood samples. Mutation screening was performed by direct sequencing of exons and flanking intron-exon boundaries for the entire coding region of four mevalonate pathway genes and SLC17A9 gene...
September 2016: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/27338161/porokeratosis-of-mibelli-case-report-of-an-uncommon-penile-lesion
#16
G Kravvas, D Veitch, H Fawcett, C B Bunker
No abstract text is available yet for this article.
August 2016: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/27297269/giant-porokeratosis-with-overlying-cutaneous-horn-and-squamous-cell-carcinoma
#17
Rajesh Kumar Mandal, Anupam Das, Piyush Kumar
No abstract text is available yet for this article.
January 2017: Indian Journal of Dermatology, Venereology and Leprology
https://www.readbyqxmd.com/read/27086492/linear-porokeratosis-with-multiple-squamous-cell-carcinomas-successfully-treated-by-electrochemotherapy
#18
M Sommerlad, A Lock, G Moir, J McGregor, R Bull, R Cerio, C Harwood
Porokeratosis is a clonal epidermal disorder of keratinization characterized by annular lesions with an atrophic centre and a hyperkeratotic edge. The cornoid lamella is the histopathological hallmark. Six clinical variants are recognized: porokeratosis of Mibelli; disseminated superficial porokeratosis; disseminated superficial actinic porokeratosis (DSAP); porokeratosis plantaris et palmaris disseminata; punctate porokeratosis and linear porokeratosis. Linear porokeratosis is the type most frequently associated with malignant transformation into squamous cell carcinoma (SCC)...
December 2016: British Journal of Dermatology
https://www.readbyqxmd.com/read/27052676/loss-of-function-mutation-in-pmvk-causes-autosomal-dominant-disseminated-superficial-porokeratosis
#19
Jiuxiang Wang, Ying Liu, Fei Liu, Changzheng Huang, Shanshan Han, Yuexia Lv, Chun-Jie Liu, Su Zhang, Yayun Qin, Lei Ling, Meng Gao, Shanshan Yu, Chang Li, Mi Huang, Shengjie Liao, Xuebin Hu, Zhaojing Lu, Xiliang Liu, Tao Jiang, Zhaohui Tang, Huiping Zhang, An-Yuan Guo, Mugen Liu
Disseminated superficial porokeratosis (DSP) is a rare keratinization disorder of the epidermis. It is characterized by keratotic lesions with an atrophic center encircled by a prominent peripheral ridge. We investigated the genetic basis of DSP in two five-generation Chinese families with members diagnosed with DSP. By whole-exome sequencing, we sequencing identified a nonsense variation c.412C > T (p.Arg138*) in the phosphomevalonate kinase gene (PMVK), which encodes a cytoplasmic enzyme catalyzing the conversion of mevalonate 5-phosphate to mevalonate 5-diphosphate in the mevalonate pathway...
2016: Scientific Reports
https://www.readbyqxmd.com/read/27051752/disseminated-superficial-porokeratosis-involving-the-groin-and-genitalia-in-a-72-year-old-immunocompetent-man
#20
Laura Gray Pruitt, Ling-Lun Bob Hsia, William A Burke
No abstract text is available yet for this article.
September 2015: JAAD Case Reports
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