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cutaneous basal cell carcinoma

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https://www.readbyqxmd.com/read/29428356/classification-of-the-clinical-images-for-benign-and-malignant-cutaneous-tumors-using-a-deep-learning-algorithm
#1
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) was fine-tuned with images from the training portion of the Asan dataset, MED-NODE dataset, and atlas site images (20,826 images in total)...
February 8, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29427464/the-expression-and-function-of-galectins-in-skin-physiology-and-pathology
#2
REVIEW
Nan-Lin Wu, Fu-Tong Liu
The galectin family comprises β-galactoside-binding proteins widely expressed in many organisms. There are at least 16 family members, which can be classified into three groups based on their carbohydrate-recognition domains. Pleiotropic functions of different galectins in physiological and pathological processes through extracellular or intracellular actions have been revealed. In the skin, galectins are expressed in a variety of cells, including keratinocytes, melanocytes, fibroblasts, dendritic cells, lymphocytes, macrophages, and endothelial cells...
February 10, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29422843/cutaneous-metastases-from-salivary-duct-carcinoma-of-the-submandibular-gland
#3
Wahida Chakari, Luise Andersen, Jørgen Lock Andersen
Salivary duct carcinoma is a rare and highly aggressive malignant neoplasm that frequently metastasises to other organs, but cutaneous metastasis is uncommon. There are only 6 cases reported in the literature with metastases to the skin and in all cases the tumour originates from the parotid gland. We present a case of skin metastases from the submandibular gland that was mistaken for basal cell carcinoma. To the best of our knowledge, this is the first reported case of salivary duct carcinoma arising from the submandibular gland with cutaneous metastases...
September 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29400378/the-value-of-ultrasound-diagnosis-in-the-multidisciplinary-approach-of-cutaneous-tumours-case-report
#4
Avram Manea, Diana Crisan, Alexandru Florin Badea, Iuliu Dinu Dumitrascu, Mihaela Felicia Baciut, Simion Bran, Ileana Mitre, Maria Crisan, Grigore Baciut
We report the case of a senior patient, presenting with two cutaneous tumours in which the clinical and dermoscopic examination pointed towards a basal cell carcinoma. Ultrasound revealed highly vascularised tumours and elastography showed increased rigidity. Histological examination of both lesions following complete resection was consistent with squamous cell carcinomas. The distinctive feature of this case consists of the complex non-invasive diagnostic imaging of the tumour morphology, performed in real time, revealing aspects compatible with highly proliferative malignant tumours...
February 4, 2018: Medical Ultrasonography
https://www.readbyqxmd.com/read/29387873/prevalence-and-types-of-genital-lesions-in-organ-transplant-recipients
#5
Kumar S Nadhan, Mary Larijani, James Abbott, Alden M Doyle, Anthony W Linfante, Christina Lee Chung
Importance: Squamous cell carcinoma (SCC) is the most common skin cancer diagnosed in solid organ transplant recipients (OTRs) and confers significant mortality. The development of SCC in the genital region is elevated in nonwhite OTRs. Viral induction, specifically human papillomavirus (HPV), is hypothesized to play a role in the pathophysiology of these lesions. Objective: To assess the prevalence and types of genital lesions observed in OTRs. Design, Setting, and Participants: This retrospective review included 496 OTRs who underwent full skin examination from November 1, 2011, to April 28, 2017, at an academic referral center...
January 31, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29382305/correction-to-%C3%A2-cancer-associated-fibroblasts-cafs-are-activated-in-cutaneous-basal-cell-carcinoma-and-in-the-peritumoural-skin
#6
Silje Haukali Omland, Erika Elgstrand Wettergren, Sarah Mollerup, Maria Asplund, Tobias Mourier, Anders Johannes Hansen, Robert Gniadecki
After publication of the original article [1] it was identified that order of the author list had been presented incorrectly. The author Robert Gniadecki's surname was also incorrect in the original article.
January 30, 2018: BMC Cancer
https://www.readbyqxmd.com/read/29356994/mutations-in-sufu-and-ptch1-genes-may-cause-different-cutaneous-cancer-predisposition-syndromes-similar-but-not-the-same
#7
A J Huq, M Walsh, B Rajagopalan, M Finlay, A H Trainer, F Bonnet, N Sevenet, I M Winship
Many cancer predisposition syndromes are preceded or accompanied by a range of typical skin signs. Gorlin syndrome is a rare multisystem inherited disorder which can predispose to basal cell carcinomas (BCCs), childhood medulloblastomas in addition to various developmental abnormalities; the majority of cases are due to mutations in the PTCH1 gene. Approximately 5% of cases have been attributed to a mutation in the SUFU gene. Certain phenotypic features have been identified as being more prevalent in individuals with a SUFU mutation such as childhood medulloblastoma, infundibulocystic BCCs and trichoepitheliomas...
January 22, 2018: Familial Cancer
https://www.readbyqxmd.com/read/29351938/unusual-skin-mass-primary-cutaneous-mucinous-carcinoma
#8
Hussnain Javaid, Naeem Raza, Urwa Ejaz, Tariq Sarfraz
Primary mucinous carcinoma of the skin is a rare malignant tumour of sweat gland origin. Diagnostic concerns include its deceptively benign appearance in some cases and the difficulty in differentiating it from secondary mucinous carcinoma of skin metastasising from a primary source elsewhere. A case of a 75-year-old man is reported who presented with a slowly growing painless mass near the lateral canthus of the right eye for about 2 years. Clinically, a diagnosis of basal cell carcinoma was made whereas histopathology revealed mucinous carcinoma of the skin...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29350397/the-burden-of-non-melanoma-skin-cancers-in-auckland-new-zealand
#9
Ashwini Pondicherry, Richard Martin, Ineke Meredith, Jack Rolfe, Patrick Emanuel, Mark Elwood
BACKGROUND/OBJECTIVES: As the New Zealand Cancer Registry does not require mandatory reporting of non-melanoma skin cancers (NMSC), basal cell carcinomas (BCC) and squamous cell carcinomas (SCC), the clinical burden of these diseases is unknown. METHODS: A retrospective review of all patients with histopathology performed allowed us to estimate invasive BCC and SCC in the Auckland region in 2008 (population 1.44 million). RESULTS: During this period, a total of 21 236 NMSC were diagnosed among 13 996 patients, consisting of 5611 SCC lesions (26%) and 15 525 (74%) BCC...
January 19, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29343198/localization-of-felis-catus-papillomavirus-type-2-e6-and-e7-rna-in-feline-cutaneous-squamous-cell-carcinoma
#10
Nathan Hoggard, John S Munday, Jennifer Luff
Findings from polymerase chain reaction-based methods have suggested a role of Felis catus papillomavirus 2 (FcaPV-2) in the development of feline cutaneous squamous cell carcinoma (SCC). However, because polymerase chain reaction cannot localize deoxyribonucleic acid or ribonucleic acid within the lesion, it is difficult to differentiate a coincidental FcaPV-2 infection and a causative association. Given that a key event in the pathogenesis of human papillomavirus-induced cancer is the expression of viral E6 and E7 oncogenes, localization of FcaPV-2 E6 and E7 transcription within neoplastic cells in feline SCCs would support a causative role for this papillomavirus...
January 1, 2018: Veterinary Pathology
https://www.readbyqxmd.com/read/29333949/the-reading-man-flap-for-reconstruction-of-large-periorbital-defects
#11
Elizabeth A Insull, Varajini Joganathan, Jonathan H Norris
PURPOSE: The "reading man" flap (RMF), a double advancement transposition cutaneous flap named for its appearance, has been described in the reconstruction of various circular skin defects, particularly in the malar region. We describe two cases where this flap was used to reconstruct the lower eyelid/periorbital region. METHODS: Two oculoplastic patients with lower eyelid basal cell carcinomas underwent Mohs micrographic excision resulting in a large skin defects...
January 15, 2018: Orbit
https://www.readbyqxmd.com/read/29331035/noninvasive-optical-spectroscopy-for-identification-of-non-melanoma-skin-cancer-pilot-study
#12
David J Carpenter, Mirabelle B Sajisevi, Nikita Chapurin, Clifford Scott Brown, Tracy Cheng, Gregory M Palmer, Daniel S Stevenson, Caroline L Rao, Russell P Hall, Charles R Woodard
OBJECTIVE: Optical spectroscopy offers a noninvasive alternative to biopsy as a first-line screening tool for suspicious skin lesions. This study sought to define several optical parameters across malignant and benign tissue types. STUDY DESIGN: Prospective pilot trial utilizing the Zenalux IM1 optical spectroscopy device from April 2016 to February 2017. For each skin lesion, provider pre-biopsy probability of malignancy was compared to histolopathologic diagnosis...
January 13, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29313924/oncogenes-and-morphogens-intricacies-of-targeted-therapy-in-cutaneous-basal-cell-carcinoma
#13
R Villani, K Khosrotehrani
No abstract text is available yet for this article.
December 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29313900/dermoscopy-of-arteriovenous-tumour-a-morphological-study-of-39-cases
#14
Pedro Zaballos, Carolina Medina, Luis J Del Pozo, Ignacio Gómez-Martín, José Bañuls
BACKGROUND/OBJECTIVES: Arteriovenous tumour is a distinct, benign, acquired vascular lesion that can be misdiagnosed. METHODS: A dermoscopic examination of 39 cases of arteriovenous tumours collected from four Spanish hospitals was performed to evaluate specific dermoscopic criteria and patterns. RESULTS: The most common structures found were vascular, 95% of cases (37/39); 90% (35/39) were non-arborising telangiectasia. All the lesions except two (95%) had a homogeneous pigmentation background that was red in 30 cases (77%), bluish-red in three (8%), brown in two (5%) and blue or multicoloured in one case each...
January 5, 2018: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/29299592/chemoprevention-of-basal-and-squamous-cell-carcinoma-with-a-single-course-of-fluorouracil-5-cream-a-randomized-clinical-trial
#15
Martin A Weinstock, Soe Soe Thwin, Julia A Siegel, Kimberly Marcolivio, Alexander D Means, Nicholas F Leader, Fiona M Shaw, Daniel Hogan, David Eilers, Susan M Swetter, Suephy C Chen, Sharon E Jacob, Erin M Warshaw, George P Stricklin, Robert P Dellavalle, Navjeet Sidhu-Malik, Nellie Konnikov, Victoria P Werth, Jonette E Keri, Leslie Robinson-Bostom, Robert J Ringer, Robert A Lew, Ryan Ferguson, John J DiGiovanna, Grant D Huang
Importance: Keratinocyte carcinoma (ie, cutaneous basal and squamous cell carcinoma) is the most common cancer in the United States. Objective: To determine whether topical fluorouracil could prevent surgically treated keratinocyte carcinoma. Design, Setting, and Participants: The Veterans Affairs Keratinocyte Carcinoma Chemoprevention Trial was a randomized, double-blind, placebo-controlled trial of topical fluorouracil for chemoprevention of keratinocyte carcinoma...
January 3, 2018: JAMA Dermatology
https://www.readbyqxmd.com/read/29277811/ptch1-germline-mutations-and-the-basaloid-follicular-hamartoma-values-in-the-tumor-spectrum-of-basal-cell-carcinoma-syndrome-nbccs
#16
Giovanni Ponti, Marco Manfredini, Lorenza Pastorino, Monia Maccaferri, Aldo Tomasi, Giovanni Pellacani
BACKGROUND/AIM: Nevoid basal cell carcinoma syndrome (NBCCS) is an autosomal dominantly inherited disorder characterized by multiple basal cell carcinomas (BCC), odontogenic tumors and various skeletal anomalies. Basaloid follicular hamartomas (BFHs) constitute rare neoplasms that can be detected in sporadic and familial settings as in the Basaloid Follicular Hamartoma Syndrome (BFHS). Although BFHS shares clinical, histopathological and genetic overlapping with the NBCCS, they are still considered two distinctive entities...
January 2018: Anticancer Research
https://www.readbyqxmd.com/read/29262420/neoplastic-multifocal-skin-lesions-biology-etiology-and-targeted-therapies-for-nonmelanoma-skin-cancers
#17
Ana R Fernandes, Ana C Santos, Elena Sanchez-Lopez, Andjekla B Kovačević, Marta Espina, Ana C Calpena, Francisco J Veiga, Maria L Garcia, Eliana B Souto
Neoplastic skin lesions are multifocal, diffuse skin infiltrations of particular relevance in the differential diagnosis of ulcerative, nodular, or crusting skin lesions. Nonmelanoma skin cancers (NMSCs), namely, basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and also actinic keratosis (AK), are the most common malignant tumors in humans. BCCs do not proliferate rapidly and most of the times do not metastasize, while SCCs are more infiltrative, metastatic, and destructive. AKs are precursor lesions of cutaneous SCCs...
December 21, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29261131/histology-of-non-melanoma-skin-cancers-an-update
#18
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/29218279/non-metastatic-non-melanoma-skin-cancers-our-3-years-of-clinical-experiences
#19
Elif Sari
BACKGROUND: Nonmelanoma skin cancers (NMSC) constitute the largest group of skin cancers. In this study, NMSCs were analyzed retrospectively. METHODS: Between June 2013 and March 2017, demographics and comorbidities of patients underwent reconstructive surgery for NMSC; their risk factors, types, diameters, differentiation, localizations, follow-up times, treatment methods and complications were compared and statistically analyzed. RESULTS: Totally, 163 tumors [111 basal cell carcinoma and 52 cutaneous squamous cell carcinoma (cSCC)] were excized from 148 patients (63 females, 85 males)...
September 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/29215761/in-vivo-differentiation-of-common-basal-cell-carcinoma-subtypes-by-microvascular-and-structural-imaging-using-dynamic-optical-coherence-tomography
#20
Lotte Themstrup, Nathalie De Carvalho, Sabrina Mai Nielsen, Jonas Olsen, Silvana Ciardo, Sandra Schuh, Birgit Meinecke-Hansen Nørnberg, Julia Welzel, Martina Ulrich, Giovanni Pellacani, Gregor B E Jemec
BACKGROUND: The subtype of basal cell carcinoma (BCC) influences the choice of treatment. Optical coherence tomography (OCT) is a non-invasive imaging tool and recent development of angiographic version of OCT has extended the application of OCT to image the cutaneous microvasculature (so called dynamic OCT, D-OCT). This study explores D-OCT's ability to differentiate the common BCC subtypes by microvascular and structural imaging. METHODS: 81 patients with 98 BCC lesions, consisting of three subtypes: 27 superficial BCC (sBCC), 55 nodular BCC (nBCC) and 16 infiltrative BCC (iBCC), were D-OCT scanned at three European dermatology centres...
December 7, 2017: Experimental Dermatology
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