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https://www.readbyqxmd.com/read/29723382/what-does-the-4th-edition-of-the-world-health-organization-classification-of-head-and-neck-tumors-2017-bring-new-about-mucosal-melanomas
#1
José Cândido Caldeira Xavier Júnior, Juliana Polizel Ocanha-Xavier
The recently published 4th Edition of the World Health Organization Classification of Head and Neck Tumors addresses the most relevant and updated aspects of tumor biology, including clinical presentation, histopathology, immunohistochemistry, and prognosis of head and neck tumors. The objective of the present study is to compare these updates to the 3rd edition of that book with regard to mucosal melanomas and to highlight the potential factors that differ those tumors from cutaneous melanomas. We observed progress in the understanding of oral and sinonasal mucosal melanomas, which also present themselves, in the molecular scope, differently form cutaneous melanomas...
March 2018: Anais Brasileiros de Dermatologia
https://www.readbyqxmd.com/read/29719740/abscopal-effect-in-a-stage-iv-melanoma-patient-who-progressed-on-pembrolizumab
#2
James M Tsui, Catalin Mihalcioiu, Fabio L Cury
In this case report, we present the clinical course of a woman with locally advanced mucosal melanoma of the oral cavity. She was initially treated with surgery with adjuvant local radiation of 50 Gy in 20 fractions. She quickly relapsed with an aggressive regional recurrence of the disease on the neck and with numerous pulmonary metastases. Immunotherapy with pembrolizumab was started, with initial good response and reduction in the size of the lesion in the neck. The regression, however, was short-lived, as the mass quickly grew at a remarkable rate and the lung lesions progressed significantly...
February 27, 2018: Curēus
https://www.readbyqxmd.com/read/29666297/phase-ii-study-of-everolimus-in-metastatic-malignant-melanoma-ncctg-n0377-alliance
#3
Jesus Vera Aguilera, Ravi D Rao, Jacob B Allred, Vera J Suman, Harold E Windschitl, Judith S Kaur, William J Maples, Val J Lowe, Edward T Creagan, Lori A Erickson, Svetomir Markovic
LESSONS LEARNED: Everolimus does not have sufficient activity to justify its use as single agent in metastatic melanoma.Patients treated with 10 mg per day dose were most likely to require dose reductions.Everolimus appeared to reduce the numbers of regulatory T cells in approximately half of the treated patients; unfortunately, these effects were not correlated with clinical outcomes. BACKGROUND: Everolimus (RAD-001) is an orally active rapamycin analogue shown in preclinical data to produce cytostatic cell inhibition, which may be potentially beneficial in treating melanoma...
April 17, 2018: Oncologist
https://www.readbyqxmd.com/read/29535967/primary-sinonasal-mucosal-melanoma-simulated-as-cystic-lesions-a-case-report
#4
Sung-Ho Shin, Hyun Seok, Seong-Gon Kim, Seong-Doo Hong
Sinonasal mucosal melanoma (SNMM) in the maxillary sinus is a rare disease condition. Compared to oral mucosal melanoma, SNMM has a bulky, exophytic, and polypoid appearance, is weakly pigmented, and associated with unspecific symptoms. Due to these features, SNMM in the maxillary sinus has been misdiagnosed as nasal polyps and chronic sinusitis. In this case report, we described SNMM occurring in the right maxillary sinus simulated as a cystic or benign lesion. Cortical bone thinning and expansion were observed around the mass...
February 2018: Journal of the Korean Association of Oral and Maxillofacial Surgeons
https://www.readbyqxmd.com/read/29515387/a-case-of-erythema-multiforme-major-developed-after-sequential-use-of-two-immune-checkpoint-inhibitors-nivolumab-and-ipilimumab-for-advanced-melanoma-possible-implication-of-synergistic-and-or-complementary-immunomodulatory-effects
#5
Akira Utsunomiya, Noritaka Oyama, Shiro Iino, Natsuki Baba, Takenao Chino, Natsuko Utsunomiya, Minoru Hasegawa
Immune checkpoint inhibitors, such as ipilimumab and nivolumab, reverse the imbalance of antitumor self-tolerance and enhance T-cell responses. Currently, ipilimumab and nivolumab have a reported therapeutic impact on unresectable or metastatic melanomas; however, they also induce immune-related adverse events (irAEs). Ipilimumab-induced cutaneous irAEs are mostly low grade and manageable, although all-grade rash may occur in approximately 45% of all patients. We here report the case of a young woman with erythema multiforme major, which developed after sequential use of these 2 immune checkpoint inhibitors for advanced melanoma of the scalp...
January 2018: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29485801/primary-oral-mucosal-melanomas-two-case-reports-and-comprehensive-literature-review
#6
Berislav Topić, Tarik Mašić, Svjetlana Radović, Ivor Lincender, Edin Muhić
Oral melanoma (OM) occurs from activated or genetically altered epidermal melanocytes. There is no scientific evidence that OM can be linked to physical, chemical and thermal irritation, or to other risk factors of the oral cavity. According to fi gures from various countries, OM accounts for 0.2% to 7.5% ( Japan) of all cases of melanoma of the skin and mucous membrane. The male to female ratio of OM is 2:1. About 80% of OMs are located in the mucosa of the palate and maxillary gingiva. This paper presents two cases of oral mucosal melanoma of the upper and lower lips in women aged 62 and 59 years...
June 2017: Acta Clinica Croatica
https://www.readbyqxmd.com/read/29460532/lichen-planus-molecular-pathway-and-clinical-implications-in-oral-disorders
#7
M Boccellino, D Di Stasio, A Romano, M Petruzzi, A Lucchese, R Serpico, L Frati, M Di Domenico
Stem cells play a role in many mucosal disorders characterised by abnormal proliferation and differentiation of keratinocytes, such as oral lichen planus (OLP). In OLP there were changes in stem cell markers as component of integrin complexes α6 and β1 integrin increased along with increase of melanoma-associated chondroitin sulphate proteoglycan (MCSP) and decreased of notch1 (N1) and keratin 15 (K15). Stem cell marker expression may be altered by pathological signalling in these lesions. Cadherins are transmembrane receptors that provide cell-cell contact and communication function through calcium-dependent homophilic and heterophilic interactions...
January 2018: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/29429904/longitudinal-clinicopathologic-data-of-the-progression-of-oral-mucosal-melanoma-report-of-2-cases-and-literature-review
#8
Paras B Patel, John M Wright, David R Kang, Yi-Shing Lisa Cheng
Oral mucosal melanoma (OMM) is notorious for having a poor prognosis. Recognition of the early features of OMM by both clinicians and pathologists can play an important role in improving survival. Therefore, the purpose of this report is to increase awareness of the early features of OMM, by presenting 2 cases with longitudinal clinical and histopathologic documentation showing progression of OMM from a deceptively bland premalignant (noninvasive) oral melanocytic lesion (POML). By analyzing the clinical and histopathologic features of POML in our cases, and those in the literature, we found that the concerning features are (1) clinically, a pigmented lesion violating the ABCDE criteria or showing multiple recurrences; and (2) histologically, a melanocytic proliferation, in either a lentiginous or pagetoid pattern with or without cellular atypia...
December 28, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/29230811/whole-exome-sequencing-of-oral-mucosal-melanoma-reveals-mutational-profile-and-therapeutic-targets
#9
Jiong Lyu, Zhijian Song, Jianhua Chen, Matthew J Shepard, Hao Song, Guoxin Ren, Zhiqiang Li, Wei Guo, Zhengping Zhuang, Yongyong Shi
Oral mucosal melanoma (OMM) is a rare and aggressive subtype of melanoma with little known about its pathogenesis or carcinogenesis. We therefore performed whole-exome sequencing (WES) on 19 matched OMM tumor/normal pairs in order to gain insight into potential genetic drivers of tumor formation. For the first time, we describe the comprehensive mutational profile of OMM. Our data suggest that the genetic background of OMM differs from those of other melanoma subtypes. We identified recurrent mutations involving KIT, POLE, PTPRD, PTCHD2, and DMXL2...
March 2018: Journal of Pathology
https://www.readbyqxmd.com/read/29214103/in-vivo-intraoral-reflectance-confocal-microscopy-of-an-amalgam-tattoo
#10
Oriol Yélamos, Miguel Cordova, Gary Peterson, Melissa P Pulitzer, Bhuvanesh Singh, Milind Rajadhyaksha, Jennifer L DeFazio
The majority of oral pigmentations are benign lesions such as nevi, melanotic macules, melanoacanthomas or amalgam tattoos. Conversely, mucosal melanomas are rare but often lethal; therefore, excluding oral melanomas in this setting is crucial. Reflectance confocal microscopy is a non-invasive, in vivo imaging system with cellular resolution that has been used to distinguish benign from malignant pigmented lesions in the skin, and more recently in the mucosa. However, lesions located posteriorly in the oral cavity are difficult to assess visually and difficult to biopsy due to their location...
October 2017: Dermatology Practical & Conceptual
https://www.readbyqxmd.com/read/29195664/-actinomycosis-revealed-by-ulceration-of-the-palate-and-gingiva
#11
F Dessirier, J-P Arnault, J Denamps, H Sevestre, C Attencourt, C Lok
BACKGROUND: Actinomycosis is a chronic and extensive granulomatous, bacterial infection. Revelation by oral ulceration is rare. PATIENTS AND METHODS: A 76-year-old patient with diabetes was treated with dabrafenib for stage IV melanoma. A follow-up visit revealed two ulcerated, infiltrated and hyperalgesic lesions of the palate and gingiva. There were no associated signs. The laboratory findings were normal. The possibility of squamous cell carcinoma occurring with BRAF inhibitors was discussed, despite the rarity of such cases in the literature...
November 28, 2017: Annales de Dermatologie et de Vénéréologie
https://www.readbyqxmd.com/read/29151970/ki67-proliferation-index-as-a-histopathological-predictive-and-prognostic-parameter-of-oral-mucosal-melanoma-in-patients-without-distant-metastases
#12
Xuhui Ma, Yunteng Wu, Tian Zhang, Hao Song, Houyu Jv, Wei Guo, Guoxin Ren
Background: To investigate the relationship between clinical and histopathological characteristics and overall survival of patients with oral mucosal melanoma (OMM) without distal metastasis in order to provide predictive prognostic information of OMM. Methods: Ki67 expression was assessed by immunohistochemistry in 123 patients with OMM without distant metastases. The associations between Ki67 expression and clinical features and overall survival (OS) of patients were statistically analyzed. The Ki67 levels of the primary and recurrent lesions from 14 OMM patients were compared...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/29137292/the-clinical-significance-of-c-kit-mutations-in-metastatic-oral-mucosal-melanoma-in-china
#13
Xuhui Ma, Yunteng Wu, Tian Zhang, Hao Song, Houyu Jv, Wei Guo, Guoxin Ren
c-Kit mutations are frequently detected in mucosal melanomas, but their clinical significance in metastatic oral mucosal melanomas (OMM) remains unclear. The main purpose of this study was to investigate the clinical and pathological features of metastatic OMMs with c-Kit mutations and the efficiency of the tyrosine kinase inhibitor imatinib in treating metastatic OMMs. We found thatresidual primary lesion and neck lymph nodes could act as independent prognostic factors in metastatic OMM patients. c-Kit mutations were detected in 22 out of 139 (15...
October 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/29034279/rare-and-extensive-malignant-melanoma-of-the-oral-cavity-report-of-two-cases
#14
Parviz Deyhimi, Sayed Mohammad Razavi, Shirin Shahnaseri, Saeedeh Khalesi, Solmaz Homayoni, Payam Tavakoli
Primary oral melanomas are uncommon malignant neoplasm of melanocytes origin. The most common site of oral melanoma is maxillary gingiva and hard palate. Oral mucosal melanoma exhibit a pathobiological behavior and clinical features different from cutaneous melanomas. Oral melanomas are often clinically silent which may consequently result in delayed diagnosis; thus, making the prognosis extremely poor. This case report presents clinical, histopathological and immunohistochemical features of two cases of advanced oral melanoma, one pigmented or melanotic melanoma in a 46-year-old female and another amelanotic melanoma in a 59-year-old male patient, with chief complaint of swelling in oral mucosa...
September 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28944501/synergistic-effects-of-interferon-beta-and-nivolumab-in-oral-mucosal-melanoma
#15
Takayuki Fusumae, Koji Kamiya, Binluen Chiang, Hirofumi Okada, Naomi Nakano, Takeo Maekawa, Mayumi Komine, Satoru Murata, Mamitaro Ohtsuki
Mucosal melanoma is a rare aggressive cancer with a very poor prognosis. Clinical and pathological characteristics of mucosal melanoma differ from those of cutaneous melanoma and there are no established management guidelines for mucosal melanoma. Complete surgical excision is one of the most effective treatments for localized lesions, while targeted therapies and immunotherapies, such as monoclonal antibodies that target cytotoxic T-lymphocyte-associated molecule-4, and the programmed death (PD)-1/PD-ligand 1 pathway inhibitors, are treatment options for unresectable or metastatic lesions...
January 2018: Journal of Dermatology
https://www.readbyqxmd.com/read/28885326/melanoma-in-situ-of-penis-a-very-rare-entity-a-case-report-and-review-of-the-literature
#16
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/28868012/treatment-of-primary-and-metastatic-multifocal-mucosal-melanoma-of-the-oral-cavity-with-imatinib
#17
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
#18
REVIEW
M Lambertini, A Patrizi, P A Fanti, B Melotti, U Caliceti, C Magnoni, C Misciali, 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 and melanosis, while the latter include physiological/racial pigmentations, smoker's melanosis, drug-induced hyperpigmentations, postinflammatory hyperpigmentations and OPs associated with systemic diseases...
February 2018: 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
#19
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/28691466/oral-melanoma-with-osteocartilagineous-differentiation-a-case-report-and-literature-review
#20
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
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