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cutaneous basal cell carcinoma

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https://www.readbyqxmd.com/read/29686913/oral-capecitabine-achieves-response-in-metastatic-eccrine-carcinoma
#1
Kristian Larson, Hani M Babiker, Andrew Kovoor, Joy Liau, Jordan Eldersveld, Emad Elquza
The low prevalence rate and limited literature on eccrine carcinoma (EC) pose a challenge to properly diagnosing and treating this rare malignancy. EC lesions tend to present similarly to other cutaneous neoplasms and dermatitis-like conditions. Efficacious treatment guidelines have not been established for patients diagnosed with EC, and few treatment regimens have demonstrated clinical benefit. Due to the high metastatic potential of EC, recognizing the clinical presentation, properly diagnosing, and utilizing beneficial treatment options are important for managing this disease...
2018: Case Reports in Oncological Medicine
https://www.readbyqxmd.com/read/29676381/ectopic-hidradenoma-papilliferum-of-eyelid-a-rare-entity-with-diagnostic-challenge
#2
Prakriti Shukla, Anil K Malaviya
Hidradenoma papilliferum is a rare cutaneous adnexal tumour of middle aged females arising mainly in the apocrine sweat glands of perianal and genital region. Ectopic forms of this entity have been described with majority of them occurring on the head and neck region. We report a case of 16 years young male who presented with two small, well circumscribed, greyish-brown, firm, nodules on his left upper and lower eyelid. A clinical impression of basal cell carcinoma was assumed but on histopathological examination it was diagnosed as hidradenoma papilliferum of eyelid...
April 2018: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29675782/identification-of-human-cutaneous-basal-cell-carcinoma-cancer-stem-cells
#3
Huw Morgan, Carlotta Olivero, Girish K Patel
The cancer stem cell model states that a subset of tumor cells, called "cancer stem cells," can initiate and propagate tumor growth through self-renewal, high proliferative capacity, and their ability to recreate tumor heterogeneity. In basal cell carcinoma (BCC), we have shown that tumor cells that express the cell surface protein CD200 fulfill the cancer stem cell hypothesis. CD200+ CD45- BCC cells represent 0.05-3.96% of all BCC cells and reside in small clusters at the tumor periphery. Using a novel, reproducible in vivo xenograft growth assay, we determined that tumor-initiating cell (TIC) frequencies are approximately 1 per 1...
April 20, 2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29661336/cutaneous-head-and-neck-malignancies-in-the-elderly
#4
REVIEW
Brian B Hughley, Cecelia E Schmalbach
Cutaneous malignancy of the head and neck affects a large proportion of elderly patients. The severity ranges from small, easily treatable lesions to large, invasive, potentially metastatic tumors. Surgical treatment is the primary treatment of most skin cancers; however, geriatric patients are more likely to have multiple comorbidities that increase the risk of surgery. Multiple treatment modalities exist, including surgical, radiation, and medical therapy. Recommendations and treatment options for basal cell carcinoma, squamous cell carcinoma, Merkel cell carcinoma, and melanoma are outlined and reviewed...
May 2018: Clinics in Geriatric Medicine
https://www.readbyqxmd.com/read/29644193/nonvenereal-penile-dermatoses-a-retrospective-study
#5
Ana Marcos-Pinto, Luís Soares-de-Almeida, João Borges-Costa
Context: A variety of nonvenereal diseases can affect the penis and diminish quality of life. Many present similar clinical features and a cutaneous biopsy may be necessary to clarify the diagnosis. Aims: To characterize nonvenereal penile dermatoses with histological confirmation in a southwestern Europe hospital during a 9-year period. Materials and Methods: A retrospective study was conducted. We reviewed all penile biopsies performed between January 1, 2007 and December 31, 2015 and studied the causes of the nonvenereal penile dermatoses...
March 2018: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/29630084/evaluation-of-p53-and-ki67-expression-profiles-in-basal-cell-carcinomas-in-a-usual-and-an-unusual-location
#6
Nuran Süngü, Merve Meryem Kiran, Hayriye Tatli Doğan, Aydan Kiliçarslan, Emre Karakök, Mesut Akyol
OBJECTIVE: Owing to their importance in cell proliferation in cutaneous malignancies, we aimed to immunohistochemically compare the expression profiles of p53 and Ki67 in basal cell carcinoma (BCC) cases in both a usual and an unusual locations in this study. MATERIAL AND METHOD: In this study we included 12 in an unusual location of BCC cases and 21 BCC cases in a usual location. Immunohistochemical expression of p53 and Ki67 antibodies were studied in 33 paraffin-embedded tissue specimens of basal cell carcinoma...
April 9, 2018: Türk Patoloji Dergisi
https://www.readbyqxmd.com/read/29629953/utility-of-ber-ep4-and-moc-31-in-basaloid-skin-tumor-detection
#7
Pavandeep Gill, Christopher Naugler, Marie S Abi Daoud
Ber-EP4 has been the traditional immunostain used for the detection of basaloid skin tumors. Recently, MOC-31 has shown be superior to Ber-EP4 in the detection of basosquamous basal cell carcinoma (BCC) and many centers are now using both Ber-EP4 and MOC-31 antibodies together to detect these lesions. The objective of this study was to compare the utility of using both Ber-EP4 and MOC-31 immunostains in the detection of basaloid skin tumors and to better characterize the previously unknown staining properties of MOC-31 in cutaneous lesions...
April 7, 2018: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/29572176/perineural-spread-of-non-melanoma-skin-cancer-to-the-brachial-plexus-identifying-an-anatomical-pathway-s
#8
Tomas Marek, B Matthew Howe, Kimberly K Amrami, Robert J Spinner
BACKGROUND: Perineural spread leading to brachial plexopathy has recently been described in cases of melanoma. The occurrence and mechanism for non-melanoma skin cancer spread to the brachial plexus is poorly understood. MATERIALS AND METHODS: A retrospective chart review of Mayo Clinic database was conducted to identify patients with non-melanoma skin cancer and brachial plexopathy between 2000 and 2017. Inclusion criteria were a history of non-melanoma skin cancer, a clinical diagnosis of brachial plexopathy, imaging features of perineural spread, and a positive biopsy showing tumor in a skin nerve...
March 20, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29570130/cholesterol-clefts-in-basal-cell-carcinoma-an-under-recognized-association
#9
Hee Joo Kim, Se Ha Park, Seul Ki Lee, Jeong Soo Kim, Jinok Baek, Hyang Joon Park, Joo Young Roh
Cholesterol clefts have rarely been described in cutaneous tumors other than lipid-rich tumors. However, they seem to be a relatively common phenomenon in basal cell carcinoma (BCC). This study was undertaken to determine the frequency of cholesterol cleft deposition in BCCs, and to identify associated histopathologic and clinical features. Twenty-eight of 249 BCC cases reviewed showed features of cholesterol cleft. Mean disease duration in those with cholesterol cleft was significantly longer than in those without cholesterol cleft (5...
March 21, 2018: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/29560294/basal-cell-carcinoma-with-myoepithelial-differentiation-case-report-and-literature-review
#10
Philip R Cohen
Basal cell carcinoma is the most common skin cancer. Myoepithelial cells are specialized epithelial cells. Basal cell carcinoma with myoepithelial differentiation is a rare tumor. A 71-year-old man with a basal cell carcinoma with myoepithelial differentiation that presented as an asymptomatic red papule of two months duration on his forehead is described. Including the reported patient, this variant of basal cell carcinoma has been described in 16 patients: 11 men and five women. The patients ranged in age at diagnosis from 43 years to 83 years; the median age at diagnosis was 66 years...
January 17, 2018: Curēus
https://www.readbyqxmd.com/read/29555579/analysis-of-cancer-associated-fibroblasts-and-the-epithelial-mesenchymal-transition-in-cutaneous-basal-cell-carcinoma-squamous-cell-carcinoma-and-malignant-melanoma
#11
Kousuke Sasaki, Tamotsu Sugai, Kazuyuki Ishida, Mitsumasa Osakabe, Hiroo Amano, Hiroaki Kimura, Minoru Sakuraba, Katsuhiko Kashiwa, Seiichiro Kobayashi
Activated cancer-associated fibroblasts (CAFs) and fibroblasts that have undergone the epithelial-mesenchymal transition (EMT) in cancer stroma contribute to tumor progression and metastasis. However, no reports have investigated the CAF phenotype and its clinicopathological relevance in cutaneous malignant tumors, including basal cell carcinoma (BCC), squamous cell carcinoma (SCC) and malignant melanoma (MM). Here, we investigated the CAF phenotype in cutaneous malignant tumors based on their histology and immunohistochemical expression of CAF-related markers, including adipocyte enhancer-binding protein 1 (AEBP1), podoplanin, platelet derived growth factor receptor α (PDGFRα), PDGFRβ, fibroblast activating protein (FAP), CD10, S100A4, α-smooth muscle actin (α-SMA), and EMT-related markers (Zeb1, Slug and Twist)...
March 16, 2018: Human Pathology
https://www.readbyqxmd.com/read/29555164/-recognition-and-initial-management-of-melanoma-by-general-practitioners-a-survey-in-a-rural-french-area-with-low-medical-density
#12
Valérie Zimmerlé, Emeline Laurent, Valérie Tauveron, Annabel Maruani, Emmanuelle Le Bidre, Mahtab Samimi, Laurent Machet
INTRODUCTION: Cutaneous cancers are very common, easily visible on skin. The general practitioner (GP) is in the front line to manage the lesions. He has to recognize malignancy and refer most often to the specialist for excision, or consider that the lesion is benign and in ambiguous cases, offer clinical monitoring. The current low medical density in the Centre Val de Loire area makes access to general practitioners (GP) and dermatologists harder. The aim of this study was to evaluate GPs' everyday practice in cutaneous cancers screening in general, and particularly in melanoma screening, in a rural region of France...
March 16, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29544218/a-novel-ptch1-frameshift-mutation-leading-to-nevoid-basal-cell-carcinoma-syndrome
#13
Ceren D Durmaz, Gareth Evans, Miriam J Smith, Pelin Ertop, Bengü N Akay, Timur Tuncalı
Nevoid basal cell carcinoma syndrome (NBCCS), also known as Gorlin syndrome, is a rare multisystemic autosomal dominant disorder typically presenting with cutaneous basal cell carcinomas, multiple keratocysts, and skeletal anomalies. NBCCS is caused by heterozygous mutations in the PTCH1 gene in chromosome 9q22, in the PTCH2 gene in 1p34, or the SUFU gene in 10q24.32. Here, we report on an 18-month-old boy presenting with medulloblastoma, frontal bossing, and multiple skeletal anomalies and his father who has basal cell carcinomas, palmar pits, macrocephaly, bifid ribs, calcification of falx cerebri, and a history of surgery for odontogenic keratocyst...
March 16, 2018: Cytogenetic and Genome Research
https://www.readbyqxmd.com/read/29533483/cutaneous-carcinogenic-risk-evaluation-in-375-patients-treated-with-narrowband-uvb-phototherapy
#14
B Raone, A Patrizi, C Gurioli, A Gazzola, G M Ravaioli
BACKGROUND: Narrowband-ultraviolet B (NB-UVB) is widely used for the treatment of several dermatological diseases. A cutaneous carcinogenic effect has been hypothesized, but not proved. METHODS: We retrospectively reviewed the data of patients treated with NB-UVB between January 1998 and December 2013 at the Dermatology Unit of our University Hospital, to evaluate the cutaneous carcinogenic risk of NB-UVB. RESULTS: 375 patients were included, each receiving a mean follow-up of 6...
March 13, 2018: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/29526028/cutaneous-squamous-cell-carcinomas-are-associated-with-basal-proliferating-actinic-keratoses
#15
L Schmitz, T Gambichler, C Kost, G Gupta, M Stücker, E Stockfleth, T Dirschka
BACKGROUND: In addition to the extent of atypical keratinocytes throughout the epidermis, actinic keratoses (AKs) are histologically characterized by downward directed basal layer expansion. It is not known if this growth pattern correlates with the risk of developing invasive squamous cell carcinoma (iSCC). OBJECTIVE: To characterize the prevalence of downward directed basal layer expansion of AKs adjacent to iSCC. METHODS: The epidermis overlying and adjacent to iSCCs was assessed histologically...
March 11, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29524319/efficacy-of-hypofractionated-radiotherapy-in-patients-with-non-melanoma-skin-cancer-results-of-a-systematic-review
#16
REVIEW
Dakshika A Gunaratne, Michael J Veness
Radiation oncologists are increasingly tasked with the management of elderly patients with non-melanoma skin cancer, unsuitable for surgical intervention due to inoperable lesions and/or poor performance status. In this cohort, hypofractionated radiotherapy, delivered either daily, alternative daily or once weekly is highly effective. A systematic literature search was conducted of PUBMED, MEDLINE and EMBASE databases using the algorithm ('radiotherapy' OR 'radiation therapy' OR 'brachytherapy') AND ('hypofraction' OR 'hypofractionated' OR 'hypofractionation') AND ('skin neoplasms' OR 'carcinoma' OR 'malignancy') AND ('skin' OR 'epidermis' OR 'epidermal' OR 'cutaneous')...
March 9, 2018: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/29501832/hyperpigmentation-and-higher-incidence-of-cutaneous-malignancies-in-moderate-high-pcb-and-dioxin-exposed-individuals
#17
Marike M Leijs, André Esser, Philipp M Amann, Thomas Schettgen, Monika Gube, Hans F Merk, Thomas Kraus, Jens M Baron
Polychlorinated biphenyls (PCB) are well known persistent and toxic environmental pollutants. Our aim was to identify effects of moderate-high exposure to dioxin-like (dl) and non-dioxin-like (ndl)-PCBs on the skin in order to provide more insight in the pathophysiological effects of these compounds. We performed a dermatological examination on 92 former workers from a transformer recycling company with known elevated serum PCB and/or dioxin (polychlorinated dibenzo-p-dioxin/polychlorinated dibenzo-p-furan (PCDD/F)) levels...
March 1, 2018: Environmental Research
https://www.readbyqxmd.com/read/29491614/cutaneous-horn-a-mask-to-underlying-malignancy
#18
Rashmi Gs Phulari, Rajendrasinh Rathore, Trupti Pramod Talegaon, Arpan Shah
Cutaneous horns ( cornu cutaneum ) are uncommon lesions consisting of keratotic material resembling that of an animal horn. It is a conical- or cylindrical-shaped excessive hyperkeratosis of variable size ranging from few millimeters to several centimeters with a variable in size and shape, such as cylindrical, conical, pointed, transversely or longitudinally corrugated, or curved like a ram's horn. The lesions typically occur in sun-exposed areas, particularly the face, ear, nose, forearms and dorsum of hands...
January 2018: Journal of Oral and Maxillofacial Pathology: JOMFP
https://www.readbyqxmd.com/read/29484016/chimeric-monoclonal-antibody-cetuximab-targeting-epidermal-growth-factor-receptor-in-advanced-non-melanoma-skin-cancer
#19
REVIEW
Uwe Wollina, Georgi Tchernev, Torello Lotti
BACKGROUND: Non-melanoma skin cancer (NMSC) is the most common malignancy in humans. Targeted therapy with monoclonal antibody cetuximab is an option in case of advanced tumor or metastasis. AIM: We present and update of the use of cetuximab in NMSC searching PUBMED 2011-2017. METHODS: The monoclonal antibody cetuximab against epidermal growth factor receptor (EGFR) has been investigated for its use in NMSC during the years 2011 to 2017 by a PUBMED research using the following items: "Non-melanoma skin cancer AND cetuximab," "cutaneous squamous cell carcinoma AND cetuximab," and "basal cell carcinoma AND cetuximab", and "cetuximab AND skin toxicity"...
January 25, 2018: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/29428356/classification-of-the-clinical-images-for-benign-and-malignant-cutaneous-tumors-using-a-deep-learning-algorithm
#20
Seung Seog Han, Myoung Shin Kim, Woohyung Lim, Gyeong Hun Park, Ilwoo Park, Sung Eun Chang
We tested the use of a deep learning algorithm to classify the clinical images of 12 skin diseases-basal cell carcinoma, squamous cell carcinoma, intraepithelial carcinoma, actinic keratosis, seborrheic keratosis, malignant melanoma, melanocytic nevus, lentigo, pyogenic granuloma, hemangioma, dermatofibroma, and wart. The convolutional neural network (Microsoft ResNet-152 model; Microsoft Research Asia, Beijing, China) was fine-tuned with images from the training portion of the Asan dataset, MED-NODE dataset, and atlas site images (19,398 images in total)...
February 8, 2018: Journal of Investigative Dermatology
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