scholarly journals Climate change and its relationship with non-melanoma skin cancers

2018 ◽  
Vol 17 (12) ◽  
pp. 1913-1917 ◽  
Author(s):  
Rubén D. Piacentini ◽  
Lara Sofía Della Ceca ◽  
Adriana Ipiña
Keyword(s):  
Climate Change ◽  
Squamous Cell Carcinoma ◽  
Basal Cell Carcinoma ◽  
Ambient Temperature ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Skin Cancers ◽  
Melanoma Skin

The increase in ambient temperature due to climate change is expected to affect the carcinogenicity of squamous cell carcinoma (SCC) and basal cell carcinoma (BCC).

scholarly journals Analysis of the Histopathological Profile and Surgical Margins Resulting from Resection of Nonmelanoma Skin Cancers

2021 ◽  
Vol 5 (1) ◽  
pp. 22-26
Author(s):  
Marcus Vinícius Jardini Barbosa ◽  
◽  
Anna Rita de Cascia Carvalho Barbosa ◽  
Frederico Alonso Sabino de Freitas
Keyword(s):  
Squamous Cell Carcinoma ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Risk Group ◽  
Surgical Margins ◽  
Cervical Region ◽  
Skin Cancers ◽  
Melanoma Skin

: Introduction: Non-melanoma skin cancer is a group of malignant neoplasms composed basically by sarcomas, basal cell carcinoma and squamous cell carcinoma. Its etiology is multifactorial with specificity for each of the two types, except for exposure to ultraviolet radiation, which is a common factor between both. When detected early, it has a high cure rate, and surgical excision with safety margins being the treatment of choice in most cases. Thus, it is important to recognize the profile of the patients, as well as the histopathological characteristics of the lesions and the medical approach used to avoid recurrences. Purpose: This study aimed to analyze the histopathological profile and surgical margins resulting from the resection of non-melanoma skin cancers in patients treated at a plastic surgery facility in Brazil. Methods: The cases of squamous cell carcinoma and the histopathological types of the basal cell carcinoma were individually analyzed for compromised margins, and later divided into a low-risk group and a high-risk group. Results: 228 lesions were resected from 141 patients. Gender distribution was 55.3% female and 44.6% male. The most affected age group was over 70 years old. The predominant histological type was basal cell carcinoma (74.6%) followed by squamous cell carcinoma (25.4%); the most affected site was the cephalic-cervical segment (71.92%). Surgical margins were compromised in 12.3% with no significant difference between the two types of carcinoma. Conclusion: There was a predominance of basal cell carcinoma (nodular type) in women over 40 years old, predominantly in the cephalic-cervical region. The number of recurrences was proportionally higher in the BCC, unrelated to the presence of positive margins. Keywords: Skin Neoplasms, Basal Cell Carcinoma, Squamous Cell Carcinoma, Recurrence, Margins of Excision.

Multifokale Neoplasien der Haut: Biologie, Ätiologie und zielgerichtete Therapien von nicht-melanozytärem Hautkrebs

2018 ◽  
Vol 6 (3) ◽  
pp. 135-146
Author(s):  
Ana R. Fernandes ◽  
Ana C. Santos ◽  
Elena Sanchez-Lopez ◽  
Andjekla B. Kovačević ◽  
Marta Espina ◽  
...  
Keyword(s):  
Squamous Cell Carcinoma ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Photodynamische Therapie ◽  
Zielgerichtete Therapien ◽  
Aktinische Keratose ◽  
Skin Cancers ◽  
Nonmelanoma Skin Cancers

Neoplastische Hautläsionen sind multifokal auftretende, diffuse Hautinfiltrationen, die besonders in der Differentialdiagnose ulzerativer, nodulärer oder verkrustender Hautläsionen von Bedeutung sind. Nicht-melanozytäre Hautkrebsformen (nonmelanoma skin cancers, NMSC) wie das Basalzellkarzinom (basal cell carcinoma, BCC), das Plattenepithelkarzinom (squamous cell carcinoma, SCC) und die aktinische Keratose (AK) sind die häufigsten malignen Tumoren beim Menschen. BCC wachsen langsam und bilden meist keine Metastasen, wohingegen SCC ein stärker infiltrierendes, destruierendes Wachstum zeigen und Metastasen bilden. AK sind Vorstufen des kutanen SCC. Bei der klassischen NMSC-Therapie kommt die photodynamische Therapie in Verbindung mit Chemotherapeutika zur Anwendung. Das zunehmende Verständnis der Pathomechanismen, die bei der Tumorentstehung, -progression und -differenzierung eine Rolle spielen, stützt die Anwendung zielgerichteter Chemotherapien zur Verringerung der Zytotoxizität klassischer Therapien. Die vorliegende Übersichtsarbeit beschreibt den aktuellen Wissensstand über NMSC, einschließlich der Risikofaktoren, Onkogene und Karzinogenese von Hautkrebs und erörtert die herkömmliche Behandlung im Vergleich zu neuartigen therapeutischen Optionen. Übersetzung aus Skin Pharmacol Physiol 2018;31:59-73 (DOI: 10.1159/000479529)

scholarly journals Histopathological pattern of skin cancer at tertiary referral skin health centre

2019 ◽  
Vol 9 (2) ◽  
pp. 1555-1559
Author(s):  
Ram Chandra Adhikari ◽  
Mahesh Shah ◽  
Anil Kumar Jha
Keyword(s):  
Squamous Cell Carcinoma ◽  
Skin Cancer ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Verrucous Carcinoma ◽  
Health Centre ◽  
Female Ratio ◽  
Skin Cancers

Background: The skin is a heterogeneous organ, capable of producing various types of skin tumors. The incidence of skin cancers, including melanoma and non-melanoma has been reported to have risen in many parts of the world. In Asian and African countries, individuals with pigmented races have a much lower incidence of skin cancers despite sunny hot weather. This study is aimed to analyze age, sex and site wise of distribution of skin cancers. Materials and Methods: The study included a total of 60 patients with histopathologically proven skin cancers from January 2015 to December 2018 in the department of pathology, DI skin health and referral centre, Kathmandu, Nepal. Results: A total of 60 cases of histopathologically proven skin cancer constituted 3.69% of total skin biopsies. Patient age ranged from 15 to 88 years with mean age being 61 years. The majority of the patients were in the age group of 61-70 yrs. The male to female ratio is 1:1.3. Basal cell carcinoma was the most common skin cancer constituting 43.4%, followed by squamous cell carcinoma (28.3%). The most common site of skin cancer is head & neck (73.3%), followed by lower extremities (8.3%). Other skin cancers were Bowen’s disease, melanoma, verrucous carcinoma, keratoacanthoma, trichilemmal carcinoma, extramammary Paget’s disease, Non-Hodgkin lymphoma and metastatic tumor. Conclusions: The most common type of skin cancer is basal cell carcinoma, followed by squamous cell carcinoma and head & neck being the commonest site.

scholarly journals In vitro Antiproliferative Effects of Cotinus coggygria Scop. on human non-melanoma and melanoma skin cancer cells

2021 ◽  
Vol 9 (7) ◽  
Author(s):  
Georgi Antov ◽  
Georgi Antov
Keyword(s):  
Squamous Cell Carcinoma ◽  
Side Effects ◽  
Skin Cancer ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Aqueous Fraction ◽  
Cotinus Coggygria ◽  
Melanoma Skin

Skin cancer is one of the most frequently diagnosed malignancies worldwide and its incidence constantly increases. The disease divides in two major subtypes: non-melanoma and melanoma skin cancer. The main drawbacks of the traditional skin cancer therapy are primary and acquired drug resistance and serious side effects due to the nonspecific treatments targeting. Despite advances in therapy strategies there is a need of new affordable natural anti-skin cancer agents, which to possess higher efficiency without causing detrimental side effects. Medicinal plants provide great possibility for the discovery of new anticancer therapeutics with preventive and treatment potential. Cotinus coggygria Scop. is a plant species widely applied in phytotherapy predominantly against disorders of the skin and mucosal tissues. The herb has a large range of valuable biological activities but its anticancer properties have not been thoroughly studied. The aim of the present research was to assess the antiproliferative properties of the crude leaf aqueous ethanolic extract from Bulgarian herb C. coggygria and its chloroformic and aqueous fractions on a panel of human skin cancer cell lines: basal cell carcinoma (TE 354.T), squamous cell carcinoma (A431) and malignant melanoma (A375) and to compare them to the cell growth inhibitory potential on normal dermal cell line (BJ). The antiproliferative capacity of the plant substances was investigated using MTT assay and microscopy cell morphology observation after 72 h cell treatment in a wide scale of concentrations. The obtained results showed that the crude extract and both fractions inhibit significant proliferation of A431 squamous cell carcinoma and A375 melanoma cells with the highest cytostatic effect registered for the aqueous fraction on A375 cells with a half maximal inhibitory concentration value of 44.33 ?g/ml. C. coggygria exhibited no cytostatic activity towards TE 354.T basal cell carcinoma cells. The established marked slight

scholarly journals Tumor Suppressor Function of CYLD in Nonmelanoma Skin Cancer

2011 ◽  
Vol 2011 ◽  
pp. 1-10 ◽  
Author(s):  
K. C. Masoumi ◽  
Gina Shaw-Hallgren ◽  
Ramin Massoumi
Keyword(s):  
Squamous Cell Carcinoma ◽  
Skin Cancer ◽  
Tumor Suppressor ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Hedgehog Signaling ◽  
Cancer Type ◽  
Skin Cancers

Ubiquitin and ubiquitin-related proteins posttranslationally modify substrates, and thereby alter the functions of their targets. The ubiquitination process is involved in various physiological responses, and dysregulation of components of the ubiquitin system has been linked to many diseases including skin cancer. The ubiquitin pathways activated among skin cancers are highly diverse and may reflect the various characteristics of the cancer type. Basal cell carcinoma and squamous cell carcinoma, the most common types of human skin cancer, are instances where the involvement of the deubiquitination enzyme CYLD has been recently highlighted. In basal cell carcinoma, the tumor suppressor protein CYLD is repressed at the transcriptional levels through hedgehog signaling pathway. Downregulation of CYLD in basal cell carcinoma was also shown to interfere with TrkC expression and signaling, thereby promoting cancer progression. By contrast, the level of CYLD is unchanged in squamous cell carcinoma, instead, catalytic inactivation of CYLD in the skin has been linked to the development of squamous cell carcinoma. This paper will focus on the current knowledge that links CYLD to nonmelanoma skin cancers and will explore recent insights regarding CYLD regulation of NF-κB and hedgehog signaling during the development and progression of these types of human tumors.

Analysis of Basal Cell Carcinoma and Squamous Cell Carcinoma according to Nasal Subunit Location

2021 ◽  
Author(s):  
Handan Derebaşınlıoğlu ◽  
Neşe Kurt Özkaya
Keyword(s):  
Squamous Cell Carcinoma ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Reconstruction Method ◽  
Tumor Type ◽  
Common Location ◽  
Skin Cancers ◽  
Significant Difference

AbstractThe nose is highly vulnerable to skin cancers due to the unavoidable sun exposure. The most common localization of skin cancers on the face is nose. Although the nose appears to be a single structure, it comprises many aesthetic units with different histological and anatomical properties. Our aim was to determine the relationship between the prevalence of basal cell carcinoma (BCC) and squamous cell carcinoma (SCC), histologically and anatomically distinct nasal subunits. The study included patients who underwent excision and repair due to BCC or SCC of the nose. The lesions were classified according to their location in the following topographic subunits: tip, alar lobule, dorsum, sidewall, and medial canthal region. Patients were analyzed according to age, sex, topographic subunit, tumor type, and repair technique. There was no statistically significant difference in tumor location according to etiology (p > 0.05). The alar subunit was the most common location of BCC, while the dorsum was the most common location for SCC. There is no statistical relationship between the two most common skin cancers, BCC and SCC, and the aesthetic subunits of the nose. The only factor associated with the reconstruction method used was the subunit in which the tumor was located.

Trends in Non-Melanoma Skin Cancer (Basal Cell Carcinoma and Squamous Cell Carcinoma) in Canada

2015 ◽  
Vol 20 (2) ◽  
pp. 166-175 ◽  
Author(s):  
Mariam Abbas ◽  
Sunil Kalia
Keyword(s):  
Squamous Cell Carcinoma ◽  
Skin Cancer ◽  
Basal Cell Carcinoma ◽  
Cell Carcinoma ◽  
Squamous Cell ◽  
Basal Cell ◽  
Age Cohorts ◽  
Non Melanoma Skin Cancer ◽  
Younger Age ◽  
Melanoma Skin

Background: Despite its increased incidence and status as the most prevalent cancer in Canada, there is a paucity of epidemiological data on non-melanoma skin cancer (NMSC). Objective: To assess trends of keratinocyte carcinomas (KC) in Canada over 5 decades. Methods: Articles published from 1960 to 2015 on NMSC in Canada were identified through MEDLINE. Six articles met our search criteria. Results: Overall, KC has increased. However, the rate of increase in the past decade has slowed down and decreased in younger age cohorts. Men had higher incidences of KC. In both sexes, the basal cell carcinoma and squamous cell carcinoma ratio was ≥2.5:1. Keratinocyte carcinomas were most commonly located on the head and neck, and increasing rates are occurring on the trunk. Limitations: The methods of registering skin cancer cases vary among different provinces. Conclusion: Keratinocyte carcinomas incidence is overall increasing; however, there may be evidence that the incidence is leveling off and decreasing in younger age cohorts.

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