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Keratoacanthoma

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https://www.readbyqxmd.com/read/29665030/dermatologic-toxicity-from-novel-therapy-using-antimicrobial-peptide-ll-37-in-melanoma-a-detailed-examination-of-the-clinicopathologic-features
#1
Tsetan Dolkar, Celestine M Trinidad, Kelly C Nelson, Rodabe N Amaria, Priyadharsini Nagarajan, Carlos A Torres-Cabala, Doina Ivan, Victor G Prieto, Michael T Tetzlaff, Jonathan L Curry, Phyu P Aung
LL-37 is a naturally occurring 37-amino acid that is part of innate immunity in human skin. Preclinical studies have demonstrated that intra-tumoral injections of LL-37 stimulate the innate immune system by activation of plasmacytoid dendritic cells, which mediate tumor destruction. LL-37 intra-tumoral injections have been utilized in a Phase 1 clinical trial for melanoma patients with cutaneous metastases. We report dermatologic toxicity in a 63-year-old woman with stage IIIC melanoma of the right calf and inguinal lymph nodes...
April 17, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29650817/-iii-diagnosis-and-management-of-keratoacanthoma
#2
Toshihiro Takai
No abstract text is available yet for this article.
April 2018: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/29610614/topical-imiquimod-5-as-a-treatment-option-in-solitary-facial-keratoacanthoma
#3
Goran Pancevski, Senada Pepic, Sanela Idoska, Gligor Tofoski, Suzana Nikolovska
BACKGROUND: Keratoacanthoma (KA) is a rapidly growing epithelial tumour with histopathologic and clinical features similar to squamous cell carcinoma (SCC) and a certain tendency toward spontaneous regression. CASE PRESENTATION: This article presents a unique and rare case of keratoacanthoma arising from the upper lip of a young male patient. These two features are in contrast to most of the reported cases in elder male individuals and on the lower lip. Relevant management protocol of the case has also been discussed...
March 15, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29578429/keratoacanthoma-of-the-upper-lip-review-of-the-literature-and-report-of-case-with-central-upper-lip-reconstruction
#4
A Goldman, U Wollina
Keratoakanthoma (KA) is a common non-melanoma skin tumor of sun-exposed skin. Recently it has been classified as a highly differentiated squamous cell carcinoma, based on the evidence of local destruction, tissue invasion and malignant transformation with metastatic spread described in the medical literature. Lower lip KA is not uncommon on lower lip, and quite rare on upper lip. The authors present a case of 78-year-old Caucasian male patient with a rapidly growing keratotic tumor of the central region of upper lip...
February 2018: Georgian Medical News
https://www.readbyqxmd.com/read/29577263/multiple-keratoacanthoma-and-oral-lichen-planus-successfully-treated-with-systemic-retinoids-and-review-of-multiple-keratoacanthoma-associated-with-lichen-planus
#5
Shiyu Zhang, Dawei Han, Tao Wang, Yuehua Liu
No abstract text is available yet for this article.
March 25, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29574930/multicentric-cutaneous-keratoacanthomas-in-a-free-living-marmoset-callithrix-sp
#6
J Díaz-Delgado, T C Sanches, C S Cirqueira, A A C Coimbra, J M Guerra, V Olivares, C Di Loretto, R A Ressio, S Iglezias, N C C A Fernandes, C Kanamura, K R Groch, J L Catão-Dias
Cutaneous neoplasia is common in non-human primates. We describe the gross and microscopic features of multicentric cutaneous keratoacanthomas in a free-living marmoset (Callithrix sp.). Immunohistochemistry for human papillomavirus and herpes simplex virus type I and simplex virus type II was negative. Keratoacanthomas should be included in the differential diagnosis for cutaneous masses in non-human primates.
March 25, 2018: Journal of Medical Primatology
https://www.readbyqxmd.com/read/29537445/intralesional-and-laser-assisted-5-fluorouracil-in-dermatologic-disease-a-systematic-review
#7
Garrett T Prince, Michael C Cameron, Ramin Fathi, Theodore Alkousakis
INTRODUCTION: 5-fluorouracil has proven to be an effective therapy in the treatment of a variety of dermatologic conditions. Approved by the United States Food and Drug Administration for the topical treatment of actinic keratoses and superficial basal cell carcinoma, 5-fluorouracil has also demonstrated efficacy in the treatment of a variety of other dermatologic diseases. While best known for its use as a topical medication, 5-fluorouracil can also be delivered intralesionally for the treatment of dermatologic disease...
March 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29477665/adjuvant-vemurafenib-in-resected-braf-v600-mutation-positive-melanoma-brim8-a-randomised-double-blind-placebo-controlled-multicentre-phase-3-trial
#8
Michele Maio, Karl Lewis, Lev Demidov, Mario Mandalà, Igor Bondarenko, Paolo A Ascierto, Christopher Herbert, Andrzej Mackiewicz, Piotr Rutkowski, Alexander Guminski, Grant R Goodman, Brian Simmons, Chenglin Ye, Yibing Yan, Dirk Schadendorf
BACKGROUND: Systemic adjuvant treatment might mitigate the high risk of disease recurrence in patients with resected stage IIC-III melanoma. The BRIM8 study evaluated adjuvant vemurafenib monotherapy in patients with resected, BRAFV600 mutation-positive melanoma. METHODS: BRIM8 was a phase 3, international, double-blind, randomised, placebo-controlled study that enrolled 498 adults (aged ≥18 years) with histologically confirmed stage IIC-IIIA-IIIB (cohort 1) or stage IIIC (cohort 2) BRAFV600 mutation-positive melanoma that was fully resected...
February 21, 2018: Lancet Oncology
https://www.readbyqxmd.com/read/29459852/%C3%AE-hpv-infection-correlates-with-early-stages-of-carcinogenesis-in-skin-tumors-and-patient-derived-xenografts-from-a-kidney-transplant-recipient-cohort
#9
Cinzia Borgogna, Carlotta Olivero, Simone Lanfredini, Federica Calati, Marco De Andrea, Elisa Zavattaro, Paola Savoia, Elena Trisolini, Renzo Boldorini, Girish K Patel, Marisa Gariglio
Many malignancies that occur in high excess in kidney transplant recipients (KTRs) are due to viruses that thrive in the setting of immunosuppression. Keratinocyte carcinoma (KC), the most frequently occurring cancer type in KTR, has been associated with skin infection by human papillomavirus (HPV) from the beta genus. In this report, we extend our previous investigation aimed at identifying the presence of active β-HPV infection in skin tumors from KTRs through detection of viral protein expression. Using a combination of antibodies raised against the E4 and L1 proteins of the β-genotypes, we were able to visualize infection in five tumors [one keratoacanthoma (KA), three actinic keratoses (AKs), and one seborrheic keratoses (SKs)] that were all removed from two patients who had been both transplanted twice, had developed multiple KCs, and presented with a long history of immunosuppression (>30 years)...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29447627/lynch-syndrome-and-muir-torre-syndrome-an-update-and-review-on-the-genetics-epidemiology-and-management-of-two-related-disorders
#10
REVIEW
Stephanie Le, Umer Ansari, Aisha Mumtaz, Kunal Malik, Parth Patel, Amanda Doyle, Amor Khachemoune
Hereditary Nonpolyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome, is an autosomal dominant, tumor predisposing disorder usuallycaused by germline mutations in mismatch repair (MMR) genes. A subset of HNPCC, Muir-Torre Syndrome (MTS) also involves MMR gene defects and is generally accepted as a variant of HNPCC. MTS is typicallycharacterized by at least one visceral malignancy and one cutaneous neoplasm of sebaceous differentiation, with or without keratoacanthomas. In either version of the disorder, nonfunctional MMR systems lead tothe loss of genomic integrity, marked commonly by mismatches in repetitive DNA sequences, resulting in microsatellite instabilities...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29418015/inverted-follicular-keratoses-of-the-buttocks
#11
Marie Kenney, Elizabeth B Lester, Deborah L Cook
No abstract text is available yet for this article.
February 8, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29369392/cutaneous-intravascular-cd30-t-cell-pseudolymphoma-occurring-in-a-regressing-keratoacanthoma
#12
A Kailas, D M Elston, S E Crater, C A Cerruto
Cutaneous intravascular CD30+ pseudolymphoma is an uncommon incidental finding that may mimic intravascular or angiotropic lymphoma. We describe a 78-year-old female with a traumatized regressing keratoacanthoma on her left cheek. A shave biopsy was performed which revealed intravascular staining of atypical lymphocytes positive for CD45, CD3 and CD30. Clinical exam revealed no other evidence of lymphoma, the patient denied constitutional symptoms, and routine blood work was normal. The patient is healthy and doing well 28 months after her first visit...
January 25, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29368221/successful-treatment-of-a-keratoacanthoma-with-electrochemotherapy-a-case-report
#13
Paola Pasquali, Enrico P Spugnini, Alfonso Baldi
INTRODUCTION: Few studies have evaluated the efficacy of intralesional bleomycin injection combined with electroporation for the treatment of cutaneous tumors. However, the phenomenon that electroporation can enhance the cytotoxicity of bleomycin in vivo by 300-700 fold has been intensely investigated. CASE PRESENTATION: Keratoacanthoma in an 86-year-old patient was treated with intralesional bleomycin combined with electroporation. Treatment consisted of local application of shorty and intense electric pulses followed by local injection of bleomycin...
January 24, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29333623/evaluation-of-universal-immunohistochemical-screening-of-sebaceous-neoplasms-in-a-service-setting
#14
K Schon, E Rytina, J Drummond, J Simmonds, S Abbs, R Sandford, M Tischkowitz
BACKGROUND: Muir-Torre syndrome (MTS) is a subtype of Lynch syndrome, which encompasses the combination of sebaceous skin tumours or keratoacanthomas and internal malignancy, due to mutations in DNA mismatch repair genes. Sebaceous neoplasms (SNs) may occur before other malignancies, and may lead to the diagnosis, which allows testing of other family members, cancer surveillance, risk-reducing surgery or prevention therapies. AIM: To evaluate the efficacy of universal immunohistochemistry (IHC) screening of SNs in a service setting...
January 14, 2018: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/29278695/carcinogenicity-assessment-of-the-hedgehog-pathway-inhibitor-vismodegib-in-tg-rash2-mice-and-sprague-dawley-rats
#15
Jinze Li, Eric Morinello, Thomas Larsen, Denzil Frost, Ivor Caro, Stephen Gould, Lisa Wong, Angela Hendricks, Noel Dybdal, Donna Dambach, Melissa Schutten
Vismodegib (also known as GDC-0449) is a novel small molecule inhibitor of the Hedgehog (Hh) signaling pathway currently approved for the treatment of metastatic or locally advanced basal cell carcinoma (BCC) in humans. Its tumorigenic potential was assessed in dedicated carcinogenicity studies in rasH2 transgenic (Tg.rasH2) mice and Sprague Dawley (SD) rats. Tumorigenicity potential of vismodegib was identified in rats only and was limited to benign hair follicle tumors, including pilomatricomas and keratoacanthomas at exposures of ≥0...
February 2018: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/29261131/histology-of-non-melanoma-skin-cancers-an-update
#16
REVIEW
Giovanni Paolino, Michele Donati, Dario Didona, Santo Raffaele Mercuri, Carmen Cantisani
Non-melanoma skin cancer (NMSC) is the most frequently diagnosed cancer in humans. Several different non-melanoma skin cancers have been reported in the literature, with several histologic variants that frequently cause important differential diagnoses with other cutaneous tumors basal cell carcinoma (BCC) is the most common malignant skin tumor, with different histologic variants that are associated with a greater or less aggressive behavior and that usually may be confused with other primitive skin tumors...
December 20, 2017: Biomedicines
https://www.readbyqxmd.com/read/29126557/-keratoacanthomas-on-recent-tattoos-two-cases
#17
N Kluger, D Douvin, F Dupuis-Fourdan, J-M Doumecq-Lacoste, V Descamps
BACKGROUND: Increasing numbers of reports of rapidly arising, isolated or eruptive keratoacanthomas (KA) and squamous cell carcinomas (CSC) on the red part of tattoos tend to suggest a non-fortuitous link with the procedure. We report herein two different presentations of KAs on tattoos: one patient with multiple eruptive KAs on sun-exposed areas of a recent red tattoo and another with a solitary lesion on a recent tattoo. We discuss the issues related to the distinction between KAs and CSCs in this particular context...
November 7, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29124377/trendy-tattoos-maybe-a-serious-health-risk
#18
Felix J Paprottka, Nicco Krezdorn, Mustafa Narwan, Marvee Turk, Heiko Sorg, Ernst Magnus Noah, Detlev Hebebrand
BACKGROUND: The literature reports many cases of cutaneous malignancy in the setting of skin tattoos. In this study, we review the reported incidence of and risk factors for tattoo-associated skin cancer. METHODS: A PubMed literature review was performed for all cases of tattoo-associated skin cancer, including squamous cell carcinoma, basal cell carcinoma, malignant melanoma, keratoacanthoma, and other rare skin malignancies (source: PubMed/until June 2017). RESULTS: The authors identified 51 publications and 63 total cases of tattoo-associated skin cancer...
November 9, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29058335/generalized-eruptive-keratoacanthoma-with-vitiligo-followed-by-the-development-of-prurigo-nodularis-a-case-report-and-published-work-review
#19
Qianyue Xu, Congying Li, Jia Zhang, Bo Ling, Hong Yu, Zhirong Yao
Herein, we report a unique case of generalized eruptive keratoacanthoma (GEKA) in a 47-year-old Chinese man presenting with extensive pruritic papules and nodules accompanied by oral lesions. He also had a 2-year history of vitiligo and long-term experience of working outdoors. Biopsies were consistent with keratoacanthoma . Interestingly, prurigo nodularis (PN) was found in histopathology at 1-year follow up. To our knowledge, this is the first report describing a case of GEKA with oral lesions complicated with vitiligo and developed with PN...
October 23, 2017: Journal of Dermatology
https://www.readbyqxmd.com/read/28948204/use-of-photodynamic-therapy-and-acitretin-in-generalized-eruptive-keratoacanthoma-of-grzybowski
#20
Stephanie Mlacker, Urvashi Kaw, Edward V Maytin
No abstract text is available yet for this article.
September 2017: JAAD Case Reports
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