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https://www.readbyqxmd.com/read/28885326/melanoma-in-situ-of-penis-a-very-rare-entity-a-case-report-and-review-of-the-literature
#1
Roberto Baraziol, Mauro Schiavon, Eugenio Fraccalanza, Gioacchino De Giorgi
RATIONALE: Melanoma in situ of the penis is very rare and there are no clear guidelines for its surgical treatment. PATIENT CONCERNS: The authors describe the case of a 69-year-old man who presented with an asymptomatic brown macula on his glans penis and foreskin that appeared about 8 years earlier, enlarged in the last few months. DIAGNOSES: A diagnostic biopsy showed the characteristics of a melanoma in situ. INTERVENTIONS: The authors decided to excise the lesion keeping a healthy margin of 1 cm all over around except close to the urethral meatus, where it was impossible, and where only 5 mm of free margin was excised...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28881806/increased-p16-and-p53-protein-expression-predicts-poor-prognosis-in-mucosal-melanoma
#2
Hanbin Chen, Yangyang Li, Yin Long, Erjiang Tang, Rongrong Wang, Kate Huang, Congying Xie, Guorong Chen
Primary mucosal melanoma (MM) is a rare, and aggressive, neoplasm with a poor prognosis. To date, few prognostic markers of MM have been well-defined. The aim of this study is to clarify the prognostic value of p53 and p16 proteins in predicting the clinical outcome of Chinese patients with MM. A total of 59 MM samples were contained from biopsy specimens, and, expressions of p53 and p16 proteins were assessed by immunohistochemistry. Cox regression analysis was performed to investigate the association of these proteins with the overall survival of MM patients...
August 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28875289/-diagnostics-of-malignant-melanoma-of-the-skin-recommendations-of-the-current-s3-guidelines-on-histology-and-molecular-pathology
#3
C Rose
The updated S3 guidelines on malignant melanoma were established in August 2016. The principles of diagnostics and classification are based on the histopathological results from the primary tumor and if necessary the sentinel lymph nodes. The most important factor for prognosis is the tumor thickness according to Breslow and the detection of sentinel node micrometastases. The surgical safety margin after excision is dependent on the tumor thickness. Furthermore, ulceration of the primary tumor and presence of mitosis in melanomas less than 1 mm in thickness are also considered in the T‑classification...
September 5, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28873483/a-rare-case-of-amelanotic-anorectal-melanoma
#4
Nicole A Negbenebor, Edward Feller
We report an exceedingly rare case of amelanotic anorectal melanoma misdiagnosed as hemorrhoids. A 74-year-old man presented with a week's history of "blood on toilet tissue" without bowel complaints or history of cutaneous melanoma. Skin evaluation was normal. Rectal exam was negative for blood, but revealed an anal nodule, interpreted as a hemorrhoid. Hemoglobin was normal; bleeding persisted. After one month, colonoscopy detected a non-pigmented anal lesion. Biopsy showed melanoma. Noncutaneous mucosal melanoma represents 0...
September 1, 2017: Rhode Island Medical Journal
https://www.readbyqxmd.com/read/28868012/treatment-of-primary-and-metastatic-multifocal-mucosal-melanoma-of-the-oral-cavity-with-imatinib
#5
Teresa Deinlein, Ingrid H Wolf, Barbara Rainer, Romana Kupsa, Erika Richtig, Rainer Hofmann-Wellenhof, Iris Zalaudek
BACKGROUND: Mucosal melanoma of the oral cavity is a rare entity and accounts for less than 1-3% of all melanomas. Contrary to cutaneous melanoma, primary oral melanoma more commonly harbors mutations in c-KIT. METHODS: A 64-year-old man presented with asymptomatic, multiple, brown-to-black macules in the oral cavity. A biopsy was taken and histopathology exhibited mucosal melanoma. In molecular analysis, a c-KIT mutation was proven and a CT scan revealed pulmonary metastases...
May 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28862771/oral-melanoma-and-other-pigmentations-when-to-biopsy
#6
REVIEW
M Lambertini, A Patrizi, P A Fanti, B Melotti, U Caliceti, C Magnoni, C Misciali C, C Baraldi, G M Ravaioli, E Dika
Oral pigmentations (OPs) are often neglected, although a meticulous examination of the oral cavity is important not only in the diagnosis of oral melanoma, but also for the detection of important clinical findings that may indicate the presence of a systemic disease. OPs may be classified into two major groups on the basis of their clinical appearance: focal and diffuse pigmentations, even though this distinction may not appear so limpid in some cases. The former include amalgam tattoo, melanocytic nevi, melanoacanthoma, melanosis, while the latter include physiological/racial pigmentations, smoker's melanosis, drug induced hyperpigmentations, post-inflammatory hyperpigmentations, and OPs associated with systemic diseases...
September 1, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28809036/clinical-investigation-of-38-cases-of-oral-mucosal-melanoma-a-multicentre-retrospective-analysis-in-japan
#7
Shin-Ichi Yamada, Hiroshi Kurita, Takahiro Kamata, Tadaaki Kirita, Michihiro Ueda, Tetsuro Yamashita, Yoshihide Ota, Mitsunobu Otsuru, Nobuhiro Yamakawa, Masaya Okura, Tomonao Aikawa, Souichi Yanamoto, Masahiro Umeda
BACKGROUND/OBJECTIVES: The aim of the present study was to investigate treatment modalities and outcomes in oral mucosal melanoma. METHODS: The clinical and pathological data of 38 consecutive patients with oral mucosal melanoma were retrospectively analyzed. Patients' characteristics were analyzed and overall survival (OS) rates were calculated. RESULTS: Sixteen patients had stage III (42%), 19 IVA (50%), and three had stage IVC (8%) disease...
August 15, 2017: Australasian Journal of Dermatology
https://www.readbyqxmd.com/read/28800579/primary-vaginal-melanoma-with-rhabdoid-features-a-case-report-and-literature-review
#8
Chien-Kuan Lee, Ho Lin, Chi-Feng Su, Victor C Kok
Primary vaginal melanoma is a rare mucosal neoplasm, which is more aggressive than cutaneous melanoma. Information regarding its morphologic patterns is limited. In particular, the rhabdoid phenotype, mostly observed in metastatic or recurrent cutaneous melanomas, has yet to be reported at this anatomic location. Hence, a potential diagnostic difficulty may arise because of the inability to recognize this unusual histologic variant and its immunohistochemical aberrance. In this report, we describe the case of a primary vaginal melanoma in a 62-year-old woman, who exhibited both rhabdoid and small blue round cell morphologies, absence of S100 protein, and aberrant expression of desmin, CD56, and FLI-1...
September 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28798001/giant-primary-sinonasal-mucosal-melanoma-a-rare-malignancy
#9
Mehtab Alam, Mohd Aslam, Piyush Kant Singh, Shahab Farkhund Hashmi, Syed Abrar Hasan
It is extremely rare to find a case of primary sinonasal mucosal melanoma, which is more aggressive and have poorer outcome than its cutaneous counterpart. This tumour is refractory to the treatment which includes wide surgical excision with or without adjuvant postoperative radiotherapy. We are reporting a case of 60 year old female who presented with right sided nasal mass and facial deformity, in whom the diagnosis of mucosal melanoma was made on histopathological examination and confirmed by immunohistochemistry...
May 2017: Gulf Journal of Oncology
https://www.readbyqxmd.com/read/28778034/human-papillomaviruses-and-carcinogenesis-well-established-and-novel-models
#10
REVIEW
Daniele Viarisio, Lutz Gissmann, Massimo Tommasino
Human papillomaviruses (HPVs) infect the cutaneous or mucosal epithelia and are classified phylogenetically as genera and species. Persistent infections by the mucosal high-risk (HR) HPV types from genus alpha are associated with cancer development of the genital and upper respiratory tracts. The products of two early genes, E6 and E7, are the major HR HPV oncoproteins, being essential in all steps of the carcinogenic process. Cutaneous beta HPV types are proposed, together with ultraviolet (UV) radiation, to promote non-melanoma skin cancer development...
August 1, 2017: Current Opinion in Virology
https://www.readbyqxmd.com/read/28767022/failure-patterns-and-prognostic-factors-of-patients-with-primary-mucosal-melanoma-of-the-nasal-cavity-and-paranasal-sinuses
#11
Zhi-Ping Liu, Jing-Wei Luo, Guo-Zhen Xu, Li Gao, Jun-Lin Yi, Xiao-Dong Huang, Yuan Qu, Kai Wang, Shi-Ping Zhang, Jian-Ping Xiao
OBJECTIVES: To analyse the failure patterns and prognostic factors influencing survival in patients with primary mucosal melanoma of the nasal cavity and paranasal sinuses. MATERIALS AND METHODS: Fifty-one patients were analysed retrospectively. Forty-eight, 33, 10, and 13 patients underwent surgery, radiotherapy, chemotherapy, and immunotherapy, respectively. Failure events, including local recurrence, regional relapse, distant metastases, and death, were examined...
October 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28737763/melanoma-subtypes-demonstrate-distinct-pd-l1-expression-profiles
#12
Genevieve J Kaunitz, Tricia R Cottrell, Mohammed Lilo, Valliammai Muthappan, Jessica Esandrio, Sneha Berry, Haiying Xu, Aleksandra Ogurtsova, Robert A Anders, Alexander H Fischer, Stefan Kraft, Meg R Gerstenblith, Cheryl L Thompson, Kord Honda, Jonathan D Cuda, Charles G Eberhart, James T Handa, Evan J Lipson, Janis M Taube
PD-L1 expression in the tumor immune microenvironment is recognized as both a prognostic and predictive biomarker in patients with cutaneous melanoma, a finding closely related to its adaptive (IFN-γ-mediated) mechanism of expression. Approximately 35% of cutaneous melanomas express PD-L1, however, the expression patterns, levels, and prevalence in rarer melanoma subtypes are not well described. We performed immunohistochemistry for PD-L1 and CD8 on 200 formalin-fixed paraffin-embedded specimens from patients with acral (n=16), mucosal (n=36), uveal (n=103), and chronic sun-damaged (CSD) (n=45) melanomas (24 lentigo maligna, 13 'mixed' desmoplastic, and 8 'pure' desmoplastic melanomas)...
September 2017: Laboratory Investigation; a Journal of Technical Methods and Pathology
https://www.readbyqxmd.com/read/28724272/patients-characteristics-histopathological-findings-and-tumor-stage-in-different-types-of-malignant-melanoma-a-retrospective-multicenter-study
#13
Ali-Mohammad Farahmand, Amir-Hoshang Ehsani, Mojtaba Mirzaei, Maryam Mohsenian, Alireza Ghanadan
Cutaneous malignant melanoma (CMM) is currently the most fatal of skin cancers accounting for 50000 deaths annually. Five distinct melanomas are described histopathologically: superficial spreading, lentigo maligna, nodular, acral lentiginous and mucosal melanoma. The aim of this study was to investigate the characteristics of patients with various types of malignant melanoma and evaluate histopathological findings. In this retrospective study, we obtained our data from the records of 111 patients with melanoma...
May 2017: Acta Medica Iranica
https://www.readbyqxmd.com/read/28720667/mapk-pathway-and-tert-promoter-gene-mutation-pattern-and-its-prognostic-value-in-melanoma-patients%C3%AF-a-retrospective-study-of-2793-cases
#14
Xue Bai, Yan Kong, Zhihong Chi, Xinan Sheng, Chuanliang Cui, Xuan Wang, Lili Mao, Bixia Tang, Siming Li, Bin Lian, Xieqiao Yan, Li Zhou, Jie Dai, Jun Guo, Lu Si
Ethnic differences are conspicuous in melanoma. This study is to obtain a comprehensive view of a genomic landscape and a better understanding of the correlations of gene mutation status with clinicopathological characteristics and disease prognosis in Asian population.<br /><br />Experimental Design: 2793 melanoma patient samples were retrospectively collected and analyzed for mutations in C-KIT, BRAF, NRAS, and PDGFRA coding regions and TERT promoter region by Sanger sequencing. Mutations were correlated to clinicopathological features and overall survival...
July 18, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28702180/abdominal-perineal-resection-or-wilde-local-excision-in-primary-anorectal-malignant-melanoma-case-report-and-review
#15
Saverio Latteri, Michele Teodoro, Michele Malaguarnera, Maurizio Mannino, Giuseppe Currò, Gaetano La Greca
INTRODUCTION: Primary anorectal malignant melanoma is a rare and aggressive tumor that carries a poor prognosis. Anorectal melanoma (ARM) is often misdiagnosed as hemorrhoids adenocarcinoma polips and rectal cancer. ARM spreads along sub-mucosal planes and is often to wide-spread for complete resection at time of diagnosis and almost all patients die because of metastases. PRESENTATION OF THE CASE: A 77-year-old male patient presented a history of recurrent rectal bleeding and whose histopathological diagnosis was melanoma...
July 2017: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/28691466/oral-melanoma-with-osteocartilagineous-differentiation-a-case-report-and-literature-review
#16
M L Pallotta, G A Beltramini, L Moneghini, R Monteverdi, A B Giannì, F J Silvestre, A Baj
Osteocartilagineous differentiation within malignant melanoma is a rare occurrence with several implications for diagnosis. Most of the reported cases have occurred in acral lentiginous malignant melanomas. In this paper, the authors describe the clinical, morphological, immunohistochemical features and surgical treatment of a case of primary oral mucosal melanoma with osteocartilaginous differentiation and they review the existing literature. The clinical history of a 67-year-old man affected of oral malignant melanoma was described from the first presentation to the second recurrence...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28679643/endogenous-heat-shock-protein-induction-with-or-without-radiofrequency-ablation-or-cryoablation-in-patients-with-stage-iv-melanoma
#17
Evidio Domingo-Musibay, James M Heun, Wendy K Nevala, Matthew Callstrom, Thomas Atwell, Evanthia Galanis, Lori A Erickson, Svetomir N Markovic
LESSONS LEARNED: Percutaneous thermal ablation combined with in situ granulocyte-macrophage colony-stimulating factor cytokine therapy was technically feasible and well tolerated.No significant clinical or immunologic responses were seen. BACKGROUND: Melanoma tumor-derived heat-shock proteins (HSPs) and HSP-peptide complexes can elicit protective antitumor responses. The granulocyte-macrophage colony-stimulating factor (GM-CSF) chemokine can also promote uptake and processing by professional antigen presenting cells (APCs)...
July 5, 2017: Oncologist
https://www.readbyqxmd.com/read/28671620/epithelial-to-mesenchymal-transition-in-the-pathogenesis-and-therapy-of-head-and-neck-cancer
#18
REVIEW
Julia Thierauf, Johannes Adrian Veit, Jochen Hess
Head and neck cancer (HNC) is one of the most prevalent human malignancies worldwide, with a high morbidity and mortality. Implementation of interdisciplinary treatment modalities has improved the quality of life, but only minor changes in overall survival have been achieved over the past decades. Main causes for treatment failure are an aggressive and invasive tumor growth in combination with a high degree of intrinsic or acquired treatment resistance. A subset of tumor cells gain these properties during malignant progression by reactivating a complex program of epithelia-to-mesenchymal transition (EMT), which is integral in embryonic development, wound healing, and stem cell behavior...
July 3, 2017: Cancers
https://www.readbyqxmd.com/read/28670177/positron-emission-tomography-in-mucosal-melanomas-of-head-and-neck-results-from-a-south-asian-tertiary-cancer-care-center
#19
Archi Agrawal, Gouri Pantvaidya, Vedang Murthy, Kumar Prabhash, Munita Bal, Nilendu Purandare, Sneha Shah, Venkatesh Rangarajan
To evaluate the accuracy of fluorodeoxyglucose positron emission tomography/computed tomography (PET/CT) in staging and restaging of patients with mucosal melanomas (MM) of head and neck. Patients who underwent PET/CT at our institution, with a biopsy proven diagnosis of MM of the head and neck between March 2006 and December 2013 were included in the study. Nineteen patients with MM of the nasal cavity, paranasal sinuses, and oral cavity were included, of which 12 were for staging and seven for restaging. PET/CT had 100% sensitivity (SN), specificity (SP), positive predictive value (PPV), and negative predictive value (NPV) for detection of the primary...
July 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28638859/a-review-of-the-aetiopathogenesis-and-clinical-and-histopathological-features-of-oral-mucosal-melanoma
#20
REVIEW
Liviu Feller, Razia A G Khammissa, Johan Lemmer
Oral mucosal melanoma is an uncommon, usually heavily melanin-pigmented, but occasionally amelanotic aggressive tumour with a poor prognosis. Despite radical surgery, radiotherapy, or chemotherapy, local recurrence and distant metastasis are frequent. Microscopical examination is essential for diagnosis, and routine histological staining must be supplemented by immunohistochemical studies. The aetiology is unknown, the pathogenesis is poorly understood, and the 5-year survival rate rarely exceeds 30%. In most cases, oral mucosal melanoma arises from epithelial melanocytes in the basal layer of the epithelium and less frequently from immature melanocytes arrested in the lamina propria...
2017: TheScientificWorldJournal
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