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https://www.readbyqxmd.com/read/27911450/uveal-melanoma-relatively-rare-but-deadly-cancer
#1
REVIEW
S Kaliki, C L Shields
Although it is a relatively rare disease, primarily found in the Caucasian population, uveal melanoma is the most common primary intraocular tumor in adults with a mean age-adjusted incidence of 5.1 cases per million per year. Tumors are located either in iris (4%), ciliary body (6%), or choroid (90%). The host susceptibility factors for uveal melanoma include fair skin, light eye color, inability to tan, ocular or oculodermal melanocytosis, cutaneous or iris or choroidal nevus, and BRCA1-associated protein 1 mutation...
December 2, 2016: Eye
https://www.readbyqxmd.com/read/27907906/senescent-fibroblast-derived-chemerin-promotes-squamous-cell-carcinoma-migration
#2
Vida Farsam, Abhijit Basu, Martina Gatzka, Nicolai Treiber, Lars A Schneider, Medhanie A Mulaw, Tanja Lucas, Stefan Kochanek, Reinhard Dummer, Mitchell P Levesque, Meinhard Wlaschek, Karin Scharffetter-Kochanek
Aging is associated with a rising incidence of cutaneous squamous cell carcinoma (cSCC), an aggressive skin cancer with the potential for local invasion and metastasis. Acquisition of a senescence-associated secretory phenotype (SASP) in dermal fibroblasts has been postulated to promote skin cancer progression in elderly individuals. The underlying molecular mechanisms are largely unexplored. We show that Chemerin, a previously unreported SASP factor released from senescent human dermal fibroblasts, promotes cSCC cell migration, a key feature driving tumor progression...
November 18, 2016: Oncotarget
https://www.readbyqxmd.com/read/27906449/differential-mutation-frequencies-in-metastatic-cutaneous-squamous-cell-carcinomas-versus-primary-tumors
#3
Ayse Selen Yilmaz, Hatice Gulcin Ozer, Jessica L Gillespie, Dawn C Allain, Madison N Bernhardt, Karina Colossi Furlan, Leticia T F Castro, Sara B Peters, Priyadharsini Nagarajan, Stephen Y Kang, O Hans Iwenofu, Thomas Olencki, Theodoros N Teknos, Amanda Ewart Toland
BACKGROUND: Exome and targeted sequencing studies have identified potential driver mutations for a variety of tumor types. Cutaneous squamous cell carcinoma (cSCC) is one of the most highly mutated cancers but typically is associated with low rates of metastasis and high survival rates. Nevertheless, metastatic cSCC is a significant health threat; up to 8800 individuals die each year of this disease. METHODS: Because it is difficult to predict which cSCCs are more likely to metastasize, and because to the best of the authors' knowledge there are no targeted therapies specifically designated for patients with metastatic cSCC, exome and/or targeted sequencing of 18 metastatic and 10 primary cSCCs was performed to identify mutations that were more frequent in metastatic tumors and might be targeted for therapeutic benefit...
December 1, 2016: Cancer
https://www.readbyqxmd.com/read/27900851/metastatic-pathways-in-patients-with-cutaneous-melanoma
#4
REVIEW
Nikki R Adler, Andrew Haydon, Catriona A McLean, John W Kelly, Victoria J Mar
Metastasis represents the end product of an elaborate biological process, which is determined by a complex interplay between metastatic tumour cells, host factors and homoeostatic mechanisms. Cutaneous melanoma can metastasize haematogenously or lymphogenously. The three predominant models that endeavour to explain the patterns of melanoma progression are the stepwise spread model, the simultaneous spread model and the model of differential spread. The time course to the development of metastases differs between the different metastatic routes...
October 19, 2016: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/27898475/pulmonary-signet-ring-cell-adenocarcinoma-metastatic-to-the-skin
#5
Alan S Boyd
Internal malignancies occasionally metastasize to the skin, usually imparting a poor prognosis. In men, pulmonary malignancies are the second most common offending tumor. Roughly, half such lesions are adenocarcinomas. A small subset of pulmonary adenocarcinomas exhibits signet-ring morphology. To date, a cutaneous metastasis arising from a pulmonary signet-ring cell adenocarcinoma has not been reported.
November 23, 2016: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/27896185/the-relationship-between-the-size-and-the-invasion-depth-of-tumors-in-head-and-neck-cutaneous-squamous-cell-carcinoma
#6
Sam Yong Lee, Won Joo Hwang, Kyung Pil Kim, Hong Min Kim, Jae Ha Hwang, Kwang Seog Kim
BACKGROUND: Cutaneous squamous cell carcinoma (SCC), which occurs in keratinocytes of the epidermis and is the second most common skin cancer, has a more invasive growth pattern and higher potential to metastasize than basal cell carcinoma. Total excision of the primary tumor is the treatment of choice. For clear excision of the tumor, invasion depth is one of the most important factors. This study was conducted to clarify the relationship between the size and the invasion depth of cutaneous SCC...
November 2016: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/27895862/cutaneous-angiosarcoma-metastatic-to-small-bowel-with-nodal-involvement
#7
Vidya A Fleetwood, Jamie C Harris, Minh B Luu
A 77-year-old male with a history of metastatic scalp angiosarcoma presented with intractable gastrointestinal bleeding from a jejunal mass detected on capsule endoscopy. He underwent laparoscopic-assisted resection of the mass. Intraoperatively, an isolated small bowel mass with bulky lymphadenopathy was seen and resected en bloc. Pathology showed a 6.8cm high-grade metastatic angiosarcoma with nodal involvement and negative margins. Angiosarcoma is a sarcoma with a grim prognosis. The incidence is 2% of all soft tissue sarcomas; cutaneous lesions comprise 27% of manifestations and usually appear on head and neck...
2016: Gastroenterology and Hepatology From Bed to Bench
https://www.readbyqxmd.com/read/27890406/cutaneous-histiocytic-sarcoma-with-regional-lymph-node-metastasis-in-a-netherland-dwarf-rabbit-oryctolagus-cuniculus
#8
M R Karim, T Izawa, M Pervin, H Sasai, M Kuwamura, J Yamate
A 10-year-old male Netherland dwarf rabbit (Oryctolagus cuniculus) was presented with a red nodular mass (1 cm in diameter) with ulceration and hair loss in the skin of the left upper lip. Cytological examination revealed atypical round cells. The mass was excised surgically. Histologically, the mass was composed of large round to polyhedral neoplastic cells with marked cytological atypia. The neoplastic cells were often binucleated or multinucleated. Immunohistochemically, the neoplastic cells were intensely positive for Iba1 and vimentin, but fewer neoplastic cells expressed E-cadherin...
November 24, 2016: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27890239/interleukin-22-and-cyclosporine-in-aggressive-cutaneous-squamous-cell-carcinoma
#9
REVIEW
Alexis L Santana, Diane Felsen, John A Carucci
Cutaneous squamous cell carcinomas (SCCs) account for up to 10,000 deaths annually in the United States. Most of the more than 700,000 SCCs diagnosed are cured by excision with clear margins; however, metastasis can occur despite seemingly adequate treatment in some cases. Immune-suppressed organ transplant recipients are 60 to 100 times more likely to develop SCC than immune-competent individuals. Transplant-associated SCCs occur more frequently and behave more aggressively, showing higher risk of recurrence and metastasis...
January 2017: Dermatologic Clinics
https://www.readbyqxmd.com/read/27889686/microrna-181-contributes-to-downregulation-of-samhd1-expression-in-cd4-t-cells-derived-from-s%C3%A3-zary-syndrome-patients
#10
Rebecca Kohnken, Karthik M Kodigepalli, Anjali Mishra, Pierluigi Porcu, Li Wu
Sézary syndrome (SS) is a rare subtype of cutaneous T-cell lymphoma (CTCL) that is characterized by aggressive spread of neoplastic CD4+ T-cells from the skin into the bloodstream with metastasis to visceral organs. The deoxynucleoside triphosphohydrolase SAMHD1 is highly expressed in normal CD4+ T-cells, while its expression is down-regulated in CD4+ T-cells from SS patients. MicroRNA (miR) dysregulation is an important epigenetic mechanism in the pathogenesis and progression of SS. MiR-181 has been shown to inhibit SAMHD1 expression in cell lines and was identified as an important prognostic biomarker in CTCL...
November 17, 2016: Leukemia Research
https://www.readbyqxmd.com/read/27882625/review-of-high-risk-features-of-cutaneous-squamous-cell-carcinoma-and-discrepancies-between-the-american-joint-committee-on-cancer-and-nccn-clinical-practice-guidelines-in-oncology
#11
REVIEW
Samuel Lamarre Skulsky, Barry O'Sullivan, Orla McArdle, Mary Leader, Muireann Roche, Peter J Conlon, James Paul O'Neill
Cutaneous squamous cell carcinoma (SCC) is a malignancy that arises from epidermal keratinocytes. Although the majority of cutaneous SCC cases are easily treated without further complication, some behave more aggressively and carry a poor prognosis. These "high-risk" cutaneous SCCs commonly originate in the head and neck and have an increased tendency toward recurrence, local invasion, and distant metastasis. Factors for high-risk cutaneous SCC include large size (>2 cm), a deeply invasive lesion (>2 mm), incomplete excision, high-grade/desmoplastic lesions, perineural invasion (PNI), lymphovascular invasion, immunosuppression, and high-risk anatomic locations...
November 24, 2016: Head & Neck
https://www.readbyqxmd.com/read/27879093/prognostic-value-of-the-area-and-density-of-lymphatic-vessels-in-cutaneous-squamous-cell-carcinoma
#12
Jorien Tannette Krediet, Jean Kanitakis, Adrienne Bob, Julia Schmitter, Annelot Carine Krediet, Joachim Röwert, Eggert Stockfleth, Clemens Painsi, Rainer Hügel, Dorothea Terhorst, Bernhard Lange-Asschenfeldt
BACKGROUND AND OBJECTIVES: Cutaneous squamous cell carcinoma (SCC) is known for its capacity to metastasize via lymphatic vessels. In recent studies, the level of lymphangiogenesis has been reported as a potential prognostic factor for several skin tumors. The aim of this study was to quantify lymphangiogenesis in SCC using either computer-assisted image analysis or the Chalkley count technique. Vascular parameters were evaluated and compared with respect to their predictive power for tumor metastasis...
November 2016: Journal der Deutschen Dermatologischen Gesellschaft, Journal of the German Society of Dermatology: JDDG
https://www.readbyqxmd.com/read/27875814/characterisation-of-prognosis-and-invasion-of-cutaneous-squamous-cell-carcinoma-by-podoplanin-and-e-cadherin-expression
#13
Kristina Hesse, Imke Satzger, Vivien Schacht, Brigitta Köther, Uwe Hillen, Joachim Klode, Katrin Schaper, Ralf Gutzmer
BACKGROUND: Around 5% of all cutaneous squamous cell carcinoma (cSCC) metastasise. Metastases usually locate in regional skin and lymph nodes, suggesting collective cancer invasion. The cellular level of tumour invasion and prognostic parameters remain to be characterised. METHODS: We performed immunohistochemical analyses of E-cadherin (marker for collective cancer invasion) and podoplanin (marker for epithelial-mesenchymal transition [EMT], single-cell invasion) expression in 102 samples of metastatic and non-metastatic cSCC and 18 corresponding skin and lymph node metastases to characterise the invasion of cSCC...
November 23, 2016: Dermatology: International Journal for Clinical and Investigative Dermatology
https://www.readbyqxmd.com/read/27843279/unusual-presentation-of-ulcerative-postauricular-swelling-as-sebaceous-cell-carcinoma
#14
Prem Chand, Ashok Kumar, Paramjit Singh, Lakshay Singla
Sebaceous glands have high concentration over head and neck region. Despite high concentration, sebaceous cell adenoma and carcinomas are infrequent. Sebaceous cell carcinoma is an uncommon, cutaneous aggressive tumor arising from the sebaceous glands and seen almost exclusively on the eyelids (75%). It accounts for just 0.2-0.7% of all eyelid tumors in the USA and very few cases that have originated in areas other than the eyelids have been reported. A 67-year-old male presented with swelling (3 cm × 4 cm), on the right postauricular region, since about 1-month...
July 2016: Nigerian Journal of Surgery: Official Publication of the Nigerian Surgical Research Society
https://www.readbyqxmd.com/read/27836097/oral-melanoma-relevance-to-the-dental-team-members
#15
Yeshwant B Rawal, Thomas B Dodson, Harbinder S Bal
BACKGROUND AND OVERVIEW: Oral melanomas vary in color and morphology and resemble myriad other reactive, benign, or malignant conditions. The authors describe a case report of a patient with a primary oral melanoma that presented as a nonspecific ulcer, which showed nodal metastasis during resection. CASE DESCRIPTION: A 64-year-old man who was examined by his periodontist to assess implant healing had a reddish-purple ulcer of the maxillary mucosa of 3 to 4 weeks duration...
November 8, 2016: Journal of the American Dental Association
https://www.readbyqxmd.com/read/27833315/zosteriform-cutaneous-metastases-from-an-occult-primary-malignancy-of-lung-identified-by-whole-body-fdg-petct-imaging
#16
Padma Subramanyam, Shanmuga Sundaram Palaniswamy, Anshu Tewari
Cutaneous metastasis may be the first evidence of internal malignancy or a sign of recurrence of malignancy and is considered a grave prognostic sign. There are various morphological variants of cutaneous metastases, with the most common being solitary to multiple erythematous infiltrating papules and nodules and the rarer variants being carcinoma erysipeloides, carcinoma en cuirasse, carcinoma telangiectaticum, alopecia neoplastica, metastasis to the inframammary crease, and zosteriform pattern. FDG PETCT is an established imaging modality in the identification of an unknown primary malignancy and also has an important role in the therapeutic decision-making...
October 2016: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/27825810/dss1-promoter-hypomethylation-and-overexpression-predict-poor-prognosis-in-melanoma-and-squamous-cell-carcinoma-patients
#17
Mario Venza, Maria Visalli, Teresa Catalano, Concetta Beninati, Diana Teti, Isabella Venza
Previous studies have found a link between high expression levels of the Deleted in Split hand/Split foot 1 (DSS1) gene and cancer progression. The aim of this study was to examine whether overexpression of DSS1 is a feature of melanoma and squamous cell carcinoma (SCC) and if any epigenetic modifications are involved. Evaluation of DSS1 expression profile indicated that the gene is overexpressed in 112/130 cutaneous melanomas (86.1%), 41/64 uveal melanomas (64.1%), 67/82 mucosal melanomas (81.7%), and 61/75 SCC samples (81...
November 4, 2016: Human Pathology
https://www.readbyqxmd.com/read/27822097/the-danish-melanoma-database
#18
REVIEW
Lisbet Rosenkrantz Hölmich, Siri Klausen, Eva Spaun, Grethe Schmidt, Dorte Gad, Inge Marie Svane, Henrik Schmidt, Henrik Frank Lorentzen, Else Helene Ibfelt
AIM OF DATABASE: The aim of the database is to monitor and improve the treatment and survival of melanoma patients. STUDY POPULATION: All Danish patients with cutaneous melanoma and in situ melanomas must be registered in the Danish Melanoma Database (DMD). In 2014, 2,525 patients with invasive melanoma and 780 with in situ tumors were registered. The coverage is currently 93% compared with the Danish Pathology Register. MAIN VARIABLES: The main variables include demographic, clinical, and pathological characteristics, including Breslow's tumor thickness, ± ulceration, mitoses, and tumor-node-metastasis stage...
2016: Clinical Epidemiology
https://www.readbyqxmd.com/read/27813258/congenital-cutaneous-melanoma-in-a-dog
#19
Bruna Meyrer, Simone Passos Bianchi, Saulo Petinatti Pavarini, Daniel Guimarães Gerardi
BACKGROUND: Melanocytic tumours are derived from melanocytes and are common in older dogs with dark pigmented skin. Primary congenital cutaneous melanoma has been described in domestic mammals although there are no reports in the dog. HYPOTHESIS/OBJECTIVE: We describe a case of canine congenital cutaneous melanoma with rapid progression to metastasis and death. ANIMAL: A male, mixed breed dog was born with a circular ulcerated lesion near the left ear...
November 4, 2016: Veterinary Dermatology
https://www.readbyqxmd.com/read/27813079/the-plasma-membrane-ca-2-pump-pmca4b-inhibits-the-migratory-and-metastatic-activity-of-braf-mutant-melanoma-cells
#20
L Hegedus, T Garay, E Molnar, K Varga, A Bilecz, S Torok, R Padanyi, K Paszty, M Wolf, M Grusch, E Kallay, B Dome, W Berger, B Hegedus, A Enyedi
Oncogenic mutations of BRAF lead to constitutive ERK activity that supports melanoma cell growth and survival. While Ca(2+) signaling is a well-known regulator of tumor progression, the crosstalk between Ca(2+) signaling and the Ras-BRAF-MEK-ERK pathway is much less explored. Here we show that in BRAF mutant melanoma cells the abundance of the plasma membrane Ca(2+) ATPase isoform 4b (PMCA4b, ATP2B4) is low at baseline but markedly elevated by treatment with the mutant BRAF specific inhibitor vemurafenib. In line with these findings gene expression microarray data also shows decreased PMCA4b expression in cutaneous melanoma when compared to benign nevi...
November 4, 2016: International Journal of Cancer. Journal International du Cancer
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