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https://www.readbyqxmd.com/read/28223752/a-case-of-terra-firma-forme-dermatosis-treated-with-salicylic-acid-alcohol-peeling
#1
Sin Wook Chun, Suk Young Lee, Jong Baik Kim, Hoo Min Choi, Byung In Ro, Han Kyoung Cho
Terra firma-forme dermatosis (TFFD) is a bizarre, acquired and idiopathic dermatosis that etiology has still not been fully defined. It is characterized by the presence of asymptomatic, brownish dirt-like lesion maybe due to disorder of keratinization. These lesions cannot be removed with ordinary cleansing. Therefore, TFFD can be differentiated from dermatosis neglecta. Patient was a 17-year-old man with brownish lesions on his face for 1 month. The patient had a history of regular washing habit with soap and water...
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/28211633/painful-nipple-hyperkeratosis-secondary-to-vemurafenib
#3
Emily S Carr, Shannon C Brown, Katherine H Fiala
Vemurafenib is a selected BRAF kinase inhibitor approved for treating metastatic or unresectable melanoma, which has numerous cutaneous side effects unfortunately, including three previously reported cases of asymptomatic areola and/or nipple hyperkeratosis. We present the first case of painful bilateral nipple hyperkeratosis secondary to vemurafenib in an 84-year-old woman. She was successfully treated with tretinoin 0.05% cream that allowed her to comfortably continue treatment. With increased awareness of this condition, we found a second case of asymptomatic nipple hyperkeratosis secondary to vemurafenib in our clinic...
February 17, 2017: Dermatologic Therapy
https://www.readbyqxmd.com/read/28203322/congenital-ichthyosis-a-case-treated-successfully-with-acitretin
#4
Selvi Gulasi
INTRODUCTION: Lamellar ichthyosis (collodion baby) is a cornification disorder classified under the category of autosomal recessive congenital ichthyosis and characterized by hyperkeratosis. Early-stage retinoid treatment has been shown to improve survival in these patients. In this article, a lamellar ichthyosis case is presented of an infant who had the symptoms at birth and was treated successfully with acitretin. CASE PRESENTATION: A term newborn infant presented after delivery...
October 2016: Iranian Journal of Pediatrics
https://www.readbyqxmd.com/read/28186503/a-novel-dlx3-pkc-integrated-signaling-network-drives-keratinocyte-differentiation
#5
Elisabetta Palazzo, Meghan D Kellett, Christophe Cataisson, Paul W Bible, Shreya Bhattacharya, Hong-Wei Sun, Anna C Gormley, Stuart H Yuspa, Maria I Morasso
Epidermal homeostasis relies on a well-defined transcriptional control of keratinocyte proliferation and differentiation, which is critical to prevent skin diseases such as atopic dermatitis, psoriasis or cancer. We have recently shown that the homeobox transcription factor DLX3 and the tumor suppressor p53 co-regulate cell cycle-related signaling and that this mechanism is functionally involved in cutaneous squamous cell carcinoma development. Here we show that DLX3 expression and its downstream signaling depend on protein kinase C α (PKCα) activity in skin...
February 10, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28183165/evaluation-of-microbiological-cellular-and-risk-factors-associated-with-subclinical-mastitis-in-female-buffaloes
#6
Emmanuella Oliveira Moura, Adriano Henrique do Nascimento Rangel, Maria Celeste Nunes de Melo, Luiz Henrique Fernandes Borba, Dorgival Morais de Lima Júnior, Luciano Patto Novaes, Stela Antas Urbano, Júlio César de Andrade Neto
Objective: This study aimed to evaluate the microbiological and cellular milk profile for the diagnosis of subclinical mastitis in female buffaloes and to assess risk factors for predisposition of the disease. Methods: Analyses were carried out by standard plate count (SPC), identification of species and antibiotic resistance, somatic cell count (SCC), electrical conductivity of milk (ECM), and Lactoferrin content in milk (Lfe). Teat cups were swabbed to evaluate risk factors, observing hyperkeratosis, milking vacuum pressure and cleanliness of the site...
February 1, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28174562/deletion-of-the-chemokine-binding-protein-gene-from-the-parapoxvirus-orf-virus-reduces-virulence-and-pathogenesis-in-sheep
#7
Stephen B Fleming, Catherine McCaughan, Zabeen Lateef, Amy Dunn, Lyn M Wise, Nicola C Real, Andrew A Mercer
Orf virus (ORFV) is the type species of the Parapoxvirus genus of the family Poxviridae and infects sheep and goats, often around the mouth, resulting in acute pustular skin lesions. ORFV encodes several secreted immunomodulators including a broad-spectrum chemokine binding protein (CBP). Chemokines are a large family of secreted chemotactic proteins that activate and regulate inflammation induced leukocyte recruitment to sites of infection. In this study we investigated the role of CBP in vivo in the context of ORFV infection of sheep...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28166616/palmoplantar-hyperkeratosis-with-a-linear-disposition-along-dermatoglyphics-a-clue-for-an-early-diagnosis-of-tyrosinemia-type-ii
#8
Luisa C Rossi, Francesca Santagada, Francesca Besagni, Stefano Cambiaghi, Elena Colombo, Michela Brena, Gianluca Tadini
No abstract text is available yet for this article.
April 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/28162852/the-role-of-immunosuppression-in-squamous-cell-carcinomas-arising-in-seborrheic-keratosis
#9
Ruzica Z Conic, Karl Napekoski, Heidi Schuetz, Melissa Piliang, Wilma Bergfeld, Natasha Atanaskova Mesinkovska
BACKGROUND: Seborrheic keratoses (SK) are common skin neoplasms considered to be benign. Reports of associated squamous cell carcinoma arising within seborrheic keratosis (SCC-SK) have been described. OBJECTIVE: To describe the histopathologic characteristics of SCC-SK and identify predisposing factors in formation of these rare lesions. METHODS: There were 162 cases of SCC-SK in a span of a decade (2003-2014). All of the histopathologic specimens and medical records were reviewed...
February 2, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28160592/development-of-proliferative-verrucous-leukoplakia-pvl-in-oral-lichen-planus-is-it-not-a-clinical-spectrum-of-pvl
#10
D-T Fernandes, A-R Santos-Silva, P-A Vargas, M-A Lopes
In their recent publication, Garcia-Pola et al. (2016) suggested the development of proliferative verrucous leukoplakia (PVL) in oral lichen planus (OLP). It was described as a preliminary study, where this association supposedly occurred (1). They presented a retrospective analysis with a long-term follow-up, showing an interesting relationship between these lesions. It is important to emphasize that the clinical profile of patients with PVL is well recognized in the literature, mainly affecting non-smoking and non-drinking elderly women, older than 60 years (2-4)...
February 4, 2017: Medicina Oral, Patología Oral y Cirugía Bucal
https://www.readbyqxmd.com/read/28154768/warty-carcinoma-penis-an-uncommon-variant
#11
Sushma Thapa, Arnab Ghosh, Santosh Shrestha, Dilasma Ghartimagar, Raghavan Narasimhan, O P Talwar
Penile carcinoma frequency varies widely in different parts of the world and comprises 1-10% of all the malignancies in males. Majority of the cases of penile carcinoma are squamous cell carcinoma of penis comprising 60% to 70% of all cases. Warty carcinoma of penis is an unusual neoplasm and a variant of penile squamous cell carcinoma comprising 5%-10% of all the variants. The other histological variants include basaloid, verrucous, papillary, sarcomatous, mixed, and adenosquamous carcinoma. The various histological entities with an exophytic papillary lesions including warty carcinoma are together referred to as the "verruciform" group of neoplasms...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/28134731/lichen-planus-with-predominate-plasma-cell-infiltrate-two-case-reports
#12
Huyenlan Dinh, Jennifer Seyffert, Nektarios I Lountzis, Howard B Altman, Christian Oram, Stephen M Purcell
Lichen planus (LP) is a mucocutaneous inflammatory dermatitis of idiopathic origin that can involve the skin, mucous membranes, hair, and nails. LP has an associated set of characteristic histopathologic findings which include hyperkeratosis, vacuolization of the basal layer, Civatte bodies, wedge-shaped hypergranulosis, band-like lymphocytic infiltrate at the dermal epidermal junction, eosinophilic colloid bodies in the papillary dermis, and pigment incontinence. The infiltrate is usually composed of lymphocytes with few histiocytes, mast cells, and macrophages...
February 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28134729/lichenoid-dermatologic-toxicity-from-immune-checkpoint-blockade-therapy-a-detailed-examination-of-the-clinicopathologic-features
#13
Michael T Tetzlaff, Priyadharsini Nagarajan, Susan Chon, Auris Huen, Adi Diab, Pacha Omar, Phyu P Aung, Carlos A Torres-Cabala, Steven R Mays, Victor G Prieto, Jonathan L Curry
Immunotherapy targeting the programmed cell death 1 (PD-1) receptor has demonstrated tremendous promise in the treatment of advanced solid tumors. Dermatologic toxicities, however, are an emerging consequence of this therapy and have been clearly associated with immune checkpoint blockade antibodies. Distinctive clinical and histologic subtypes of dermatologic toxicity secondary to immunotherapy are emerging and include rare autoimmune bullous reactions (eg, bullous pemphigoid) and lichenoid eruptions. We report three patients who developed lichenoid dermatitis while receiving anti-PD-1 antibody therapy...
February 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28121638/epidermolytic-ichthyosis-sine-epidermolysis
#14
Marina Eskin-Schwartz, Marianna Drozhdina, Ofer Sarig, Andrea Gat, Tomer Jackman, Ofer Isakov, Noam Shomron, Liat Samuelov, Natalia Malchin, Alon Peled, Dan Vodo, Alain Hovnanian, Thomas Ruzicka, Sergei Koshkin, Robert M Harmon, Jennifer L Koetsier, Kathleen J Green, Amy S Paller, Eli Sprecher
Epidermolytic ichthyosis (EI) is a rare disorder of cornification caused by mutations in KRT1 and KRT10, encoding two suprabasal epidermal keratins. Because of the variable clinical features and severity of the disease, histopathology is often required to correctly direct the molecular analysis. EI is characterized by hyperkeratosis and vacuolar degeneration of the upper epidermis, also known as epidermolytic hyperkeratosis, hence the name of the disease. In the current report, the authors describe members of 2 families presenting with clinical features consistent with EI...
January 17, 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28091448/oro-dental-characteristics-of-three-siblings-with-papillon-lefevre-syndrome
#15
O E Gungor, H Karayilmaz, H Yalcin, M Hatipoğlu
Papillon-Lefevre syndrome (PLS) is a rare autosomal recessive disorder, showing oral and dermatological manifestations in the form of aggressive periodontitis, leading to the premature loss of both primary and permanent teeth at a very young age and palmar-plantar hyperkeratosis. It was first described by two French physicians, Papillon and Lefevre in 1924. Immunologic, genetic, or possible bacterial etiologies have been thought to account for etiopathogenesis of PLS. Severe gingival inflammation and periodontal destruction occurred after the eruption of primary teeth...
February 2017: Nigerian Journal of Clinical Practice
https://www.readbyqxmd.com/read/28067422/epidermal-psoriasiform-hyperplasia-an-unrecognized-sign-of-folliculitis-decalvans-a-histological-study-of-26-patients
#16
Bruno Matard, Benedicte Cavelier-Balloy, Pascal Reygagne
BACKGROUND: Follicular hyperkeratosis along with hyperplasia of the follicular and interfollicular epithelia are major histopathological characteristics of hidradenitis suppurativa (HS). The presence of an occasional thickening of lesional skin in some folliculitis decalvans (FD) patients and histological similarities between FD and HS led us to look for epidermal hyperplasia and follicular hyperkeratosis in FD patients. PATIENTS AND METHOD: We performed a retrospective histological analysis of 26 patients with FD...
January 9, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28063594/-scabies-of-the-nail-unit-in-an-infant
#17
A Finon, G Desoubeaux, M Nadal, G Georgescou, R Baran, A Maruani
BACKGROUND: There are no guidelines regarding the management of scabies in infants and recurrence is common at this age. We report the case of an infant with subungual hyperkeratosis and ungual lesions subsequent to classic scabies. PATIENTS AND METHODS: A 7-month-girl, treated 6 weeks earlier with esdepallethrin for scabies, consulted for acquired lesions on 3 toe nails. These nails were thickened and displayed subungual hyperkeratosis. Physical examination of the skin, the finger nails and mucous membranes was otherwise normal...
January 4, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/28053911/verruciform-xanthoma-in-the-hard-palate-a-case-report-and-literature-review
#18
Alexandre Simões Garcia, Otávio Pagin, Paulo Sérgio da Silva Santos, Denise Tostes Oliveira
Oral verruciform xanthoma (OVX) is an uncommon lesion that appears on the oral mucosa. The aim of this paper was to discuss the probable etiopathogenesis of OVX in the hard palate, reinforcing the importance of including this lesion in the differential diagnosis of verrucous lesions. A 43-year-old male smoker presented with a painless lesion with a verrucous surface and erythematous spots on the hard palate. Excisional biopsy revealed oral mucosa consisting of hyperkeratosis, acanthosis, and elongated rete pegs...
December 2016: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/28052370/acantholytic-dermatosis-of-the-vagina-the-diagnostic-challenge-of-acantholytic-disease-in-the-genital-region
#19
J Kentley, R Cerio, M Khorshid, K Gibbon
We report the case of a 24-year-old woman with an 8-month history of deep pelvic pain and postcoital bleeding. Examination revealed desquamation of the vaginal epithelium with tender fissured plaques in the vagina, initially thought to be vaginal intraepithelial neoplasia. Histology showed squamous mucosa with suprabasal acantholysis and hyperkeratosis, and no evidence of viral infection, dysplasia or malignancy. These findings were consistent with acantholytic dermatosis (AD), a rare lesion that resembles Hailey-Hailey and Darier disease histopathologically, but can be distinguished on a clinical basis...
January 4, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28036153/semi-quantifiable-angiogenesis-parameters-in-association-with-the-malignant-transformation-of-oral-leukoplakia
#20
D Thiem, S Schneider, Narayan T V, V V Kumar, J Brieger, B Frerich, P W Kämmerer
BACKGROUND: Aim of the study was to assess the role of angiogenesis in the process of malignant transformation of clinical diagnosed oral leukoplakia (OL). MATERIALS AND METHODS: 131 histological preparations (oral leukoplakia/hyperkeratosis without dysplasia (OL; n=49), oral leukoplakia/hyperkeratosis with mild dysplasia (OL-SIN1; n=33), with moderate dysplasia (OL-SIN2; n=13) and leukoplakia-derived oral squamous cell carcinoma (OL-OSCC; n=36)) were evaluated for microvessel density (MVD), vessel diameter as well as for vascular endothelial growth factor (VEGF-A) expression...
December 30, 2016: Journal of Oral Pathology & Medicine
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