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Melanoma pathology

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https://www.readbyqxmd.com/read/29785370/primary-amelanotic-malignant-melanoma-of-the-male-urethra-with-inguinal-lymph-node-metastasis-successfully-controlled-by-nivolumab-a-case-report
#1
Takashi Tokita, Takashi Kawahara, Yusuke Ito, Sohgo Tsutsumi, Koichi Abe, Kazuhiro Namura, Futoshi Sano, Koichi Shioi, Daiji Takamoto, Yasushi Yumura, Noboru Nakaigawa, Masahiro Yao, Hiroji Uemura, Hidefumi Wada, Yukio Tsuura, Kazuki Kobayashi
We report a rare case of primary amelanotic malignant melanoma of the male urethra. A 65-year-old man with a urethral mass was referred to our hospital. A pathological diagnosis of a biopsy specimen revealed malignant melanoma. Thereafter, the patient underwent partial penectomy. The histopathological diagnosis was amelanotic malignant melanoma of the urethra. The patient had received DAV-Feron in an adjuvant setting; however, PET-CT revealed multiple metastasis. After receiving more than 10 cycles of nivolumab, the accumulation of FDG was no longer observed on PET-CT...
May 2018: Urology Case Reports
https://www.readbyqxmd.com/read/29783238/clinical-efficiency-of-dynamic-observation-of-patients-with-epidermal-dysplasia-of-the-skin
#2
Oleg L Ziukov, Оlena O Oshyvalova
OBJECTIVE: Introduction: Non-melanoma skin cancer is the most common type of cancer among the population of Ukraine. The aim: The study of clinical efficacy of dynamic observation of patients with epidermal dysplasia of the skin. PATIENTS AND METHODS: Materials and methods: To study epidermal dysplasia of the skin there was used identifying information of patients, who were under dynamic observation of dermatologists of the State Scientific Institution "Research and Practical Centre of Preventive and Clinical Medicine" of the State Administration in 2013-2017...
2018: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29782294/the-value-of-high-frequency-20-mhz-ultrasonography-for-preoperative-measurement-of-cutaneous-melanoma-thickness
#3
Andrea Kozárová, Marek Kozár, Ingrid Tonhajzerová, Táňa Pappová, Eva Minariková
High-frequency ultrasonography has become an important diagnostic tool in dermatovenerology. It is used for assessment of the cutaneous layers in diverse benign and malignant skin lesions and diseases. Herein we present the practical value of preoperative measurement of cutaneous melanoma thickness, the explanation of the possible reasons for different sonographic and histologic Breslow thickness, and the practical importance of high-frequency 20 MHz ultrasonography in preoperative measurements of cutaneous melanoma thickness...
April 2018: Acta Dermatovenerologica Croatica: ADC
https://www.readbyqxmd.com/read/29780936/clinical-and-pathological-correlation-of-cotton-wool-spots-in-secondary-angle-closure-glaucoma
#4
Anand Bhatt, Christine Nguyen, Sameh Mosaed, Don Minckler
Purpose: Cotton Wool Spots (CWS) are a commonly described retinal finding in the posterior segment associated with an extensive number of systemic diseases. The appearance of a CWS in the setting of glaucoma has rarely been reported and has not been correlated with pathology to localized loss of the nerve fiber layer previously. In this case report, we augment a previous report of an 18 year old female with a diagnosis of low grade ciliary body melanoma. This patient experienced eventual mechanical angle closure with a CWS appearing in the posterior pole in the setting of acute elevation of intraocular pressure (IOP)...
June 2018: American Journal of Ophthalmology Case Reports
https://www.readbyqxmd.com/read/29780262/high-mortality-due-to-cutaneous-melanoma-in-norway-a-study-of-prognostic-factors-in-a-nationwide-cancer-registry
#5
Trude Eid Robsahm, Per Helsing, Yngvar Nilssen, Linda Vos, Syed Mohammad H Rizvi, Lars A Akslen, Marit B Veierød
Purpose: The purpose of this study was to examine why Norway has the highest rate of mortality due to cutaneous melanoma (CM) in Europe. The Norwegian Malignant Melanoma Registry (NMMR) enables the study of clinical and histopathological characteristics of patients who die due to CM. Results: The NMMR and the Norwegian Cause of Death Registry provided data on the clinical and histopathological factors as well as the date and cause of death, through June 2015 for all first invasive CMs diagnosed in 2008-2012 (n=8087)...
2018: Clinical Epidemiology
https://www.readbyqxmd.com/read/29771903/incidence-demographics-and-surgical-outcomes-of-cutaneous-squamous-cell-carcinoma-diagnosed-in-northland-new-zealand
#6
Brodie M Elliott, Benjamin R Douglass, Daniel McConnell, Blair Johnson, Christopher Harmston
AIM: Non-melanoma skin cancer (NMSC) is the most commonly diagnosed and most costly cancer in Australasia. Cutaneous squamous cell carcinoma (cSCC) accounts for approximately 25% of NMSC. Despite this, reporting of cSCC is not mandatory in Australasia. This creates difficulties in planning, resourcing and improving outcomes in cSCC. Previous studies in New Zealand have lacked data on ethnicity. The aim of this study was to define the incidence and demographics of cSCC diagnosed in Northland, New Zealand, including data on ethnicity...
May 18, 2018: New Zealand Medical Journal
https://www.readbyqxmd.com/read/29768245/exploring-the-potential-of-mucin-13-muc13-as-a-biomarker-for-carcinomas-and-other-diseases
#7
Panagiota S Filippou, Annie H Ren, Dimitrios Korbakis, Lampros Dimitrakopoulos, Antoninus Soosaipillai, Vivian Barak, Shahar Frenkel, Jacob Pe'er, Michal Lotem, Sharon Merims, Rafael Molina, Ivan Blasutig, Dimitrios P Bogdanos, Eleftherios P Diamandis
BACKGROUND: Mucin 13 (MUC13) is a cell surface glycoprotein aberrantly expressed in a variety of epithelial carcinomas. Thus far, the role of MUC13 in various diseases remains elusive. To the best of our knowledge, this is the first study to examine the potential of MUC13 as a serum biomarker in a variety of carcinomas and other conditions. METHODS: We developed a recombinant MUC13 protein, mouse monoclonal antibodies and enzyme immunoassay (ELISA) for MUC13. We used this assay to measure MUC13 levels in the supernatants of cancer cell lines and a large cohort of serum samples from healthy and diseased individuals...
May 16, 2018: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/29766934/spectrum-of-metastatic-neoplasms-of-the-brain-a-clinicopathological-study-in-a-tertiary-care-cancer-centre
#8
Smrita Singh, Usha Amirtham, Chennagiri S Premalata, Kuntegowdanahalli C Lakshmaiah, Lokesh Viswanath, Rekha V Kumar
Background: While brain metastases (BM) are the most common causes of neurologic disorders in patients with known systemic malignancies, they can often be the initial manifestations of an undetected primary elsewhere. BM are major causes of morbidity and mortality in cancer patients. Aims: We describe a mixed population (data from both retrospective and prospective collection) having a BM from a solid tumor. We report the percentage distribution of the most frequent types of BM, confirming the data published in the literature...
May 2018: Neurology India
https://www.readbyqxmd.com/read/29763716/prognostic-factors-in-primary-anorectal-melanoma-a-clinicopathologic-study-of-60-cases-in-china
#9
Min Ren, Yawen Lu, Jiaojie Lv, Xuxia Shen, Jincheng Kong, Bo Dai, Yunyi Kong
To investigate the clinicopathologic features and prognostic factors of primary anorectal melanoma, we described the clinical presentations, histopathology, and prognosis of 60 cases in China. Patients' age ranged from 17 to 86years with a female-to-male ratio of 2.33:1. The prevalent anatomic site of tumor was anorectum. The mean tumor thickness was 11.5mm and mean tumor size was 2.9cm. Abdominoperineal resection was performed on 38 (63.3%) patients, while wide local excision on 22 (36.7%) patients. Thirty-three (55...
May 12, 2018: Human Pathology
https://www.readbyqxmd.com/read/29762449/time-to-procedure-nuclear-imaging-and-clinicopathological-characteristics-as-predictive-factors-for-sentinel-lymph-node-metastasis-in-cutaneous-melanoma-a-single-center-analysis
#10
Ljiljana Jaukovic, Milica Rajović, Lidija Kandolf Sekulovic, Marija Radulovic, Nenad Stepic, Zeljko Mijuskovic, Nenad Petrov, Boris Ajdinovic
OBJECTIVE: Sentinel lymph node (SLN) biopsy is a widely accepted staging procedure for cutaneous melanoma patients who are at risk of clinically occult nodal metastases. Numerous predictive factors for regional lymph node metastases have been identified; however, few have been found to be reproducibly significant. Also, the role of blue dye in identification was questioned in recent trials. Time to procedure was also found to be predictive of SLN positivity, but this was not confirmed in other studies...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29755118/tumour-mutation-status-and-melanoma-recurrence-following-a-negative-sentinel-lymph-node-biopsy
#11
Nikki R Adler, Rory Wolfe, Grant A McArthur, John W Kelly, Andrew Haydon, Catriona A McLean, Victoria J Mar
BACKGROUND: A proportion of patients develop recurrence following a tumour-negative sentinel lymph node biopsy (SLNB). This study aimed to explore whether melanoma patients with BRAF or NRAS mutant tumours have an increased risk of developing disease recurrence following a negative SLNB compared to patients with wild-type tumours. METHODS: Prospective cohort study of melanoma patients at three tertiary referral centres in Melbourne, who underwent SLNB. Clinical, pathological and molecular characteristics and recurrence data were prospectively recorded...
May 14, 2018: British Journal of Cancer
https://www.readbyqxmd.com/read/29752127/implementation-of-next-generation-sequencing-technology-for-somatic-mutation-detection-in-routine-laboratory-practice
#12
Tindaro Giardina, Cleo Robinson, Fabienne Grieu-Iacopetta, Michael Millward, Barry Iacopetta, Dominic Spagnolo, Benhur Amanuel
The introduction of next generation sequencing (NGS) in the routine diagnostic setting is still in the development phase and has been limited by its complexity. Targeted NGS offers an attractive alternative to performing multiple single target assays and is very useful in meeting the increasing clinical demand for testing of multiple genetic aberrations in cancer specimens. To this end, we carried out a blinded validation study on 113 tumours in a diagnostic laboratory and compared mutation results from targeted NGS with those from Sanger sequencing, pyrosequencing, competitive allele specific TaqMan polymerase chain reaction (CAST PCR) and Cobas assays...
May 8, 2018: Pathology
https://www.readbyqxmd.com/read/29750750/malignant-melanoma-clinically-mimicking-pyogenic-granuloma-comparison-of-clinical-evaluation-and-histopathology
#13
Michael Moshe, Assi Levi, Dean Ad-El, Dan Ben-Amitai, Daniel Mimouni, Elena Didkovsky, Meora Feinmesser, Moshe Lapidoth
Amelanotic melanomas (AMMs) account for a small proportion of all melanomas. They pose a risk of delayed diagnosis and, consequently, poor prognosis. AMMs may atypically present as a pyogenic granuloma-like lesion. This study sought to investigate the prevalence and clinical and histological features of AMM masquerading as pyogenic granuloma. The database of a tertiary medical center was screened for all patients pathologically diagnosed with melanoma in 2005-2016. Those with a suspected primary (i.e. pre-excision) clinical diagnosis of pyogenic granuloma were identified, and their demographic, clinical, histologic, and outcome data were collected from the medical files...
May 10, 2018: Melanoma Research
https://www.readbyqxmd.com/read/29748886/multifactorial-analysis-of-prognostic-factors-and-survival-rates-among-706-mucosal-melanoma-patients
#14
ChuanLiang Cui, Bin Lian, Li Zhou, Xin Song, XiaoShi Zhang, Di Wu, ZhiHong Chi, Lu Si, XiNan Sheng, Yan Kong, BiXia Tang, LiLi Mao, Xuan Wang, SiMing Li, Jie Dai, XieQiao Yan, Xue Bai, Charles M Balch, Jun Guo
BACKGROUND: The hypothesis that mucosal melanomas from different anatomic sites would have different prognostic features and survival outcome was tested in a multifactorial analysis. METHODS: Complete clinical and pathological information from 706 mucosal melanoma patients from different anatomical sites was compared for overall survival (OS) and prognostic factors. RESULTS: Mucosal melanomas arising from different anatomical sites did not have any significant differences in OS in a multivariate analysis (p = 0...
May 10, 2018: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29746652/malignant-melanoma-metastatic-to-oligodendroglioma-case-report-and-literature-review-of-tumor-to-tumor-metastasis-to-gliomas
#15
Alexandra Giantini Larsen, Benjamin L Grannan, Christine K Lee, Matthew J Koch, Erik A Williams, Matthew P Frosch, Daniel P Cahill
Tumor-to-tumor metastasis is an uncommon phenomenon, and a metastasis from an extracranial donor tumor to an intracranial recipient tumor is extremely rare. In particular, there are only 14 cases reported in the literature that describe a tumor-to-tumor metastasis involving a glioma. We present a rare case of an 83-year-old man with an 11-year history of lentigo maligna melanoma who presented with impaired balance and cognitive slowing and was found to have rapid progression of a previously known indolent right frontal brain mass...
May 8, 2018: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/29743521/e2f1-inhibition-mediates-cell-death-of-metastatic-melanoma
#16
Florian Rouaud, Nedra Hamouda-Tekaya, Michaël Cerezo, Patricia Abbe, Joséphine Zangari, Veronique Hofman, Mickaël Ohanna, Baharia Mograbi, Najla El-Hachem, Zohra Benfodda, Alexandre Lebeau, Meri K Tulic, Paul Hofman, Corine Bertolotto, Thierry Passeron, Jean-Sébastien Annicotte, Robert Ballotti, Stéphane Rocchi
Melanoma is one of the most lethal cancers when it reaches a metastatic stage. Despite advancements in targeted therapies (BRAF inhibitors) or immunotherapies (anti-CTLA-4 or anti-PD1), most patients with melanoma will need additional treatment. Thus, there is an urgent need to develop new therapeutical approaches to bypass resistance and achieve more prolonged responses. In this context, we were interested in E2F1, a transcription factor that plays a major role in the control of cell cycle under physiological and pathological conditions...
May 9, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29737740/-unilateral-sinonasal-disease-in-376-adult-patients-a-retrospective-study
#17
Xin Yan Cui, Li Qin Wang, Min Yin, Xi Chen, Mei Ping Lu, Han Zhou, Wei Da Dong, Zhi Bin Chen, Lei Cheng
OBJECTIVES: To investigate the clinical and pathological features of patients with unilateral sinonasal disease (USD). METHODS: A retrospective analysis was completed on 376 adult patients with USD from January 2015 to December 2016. Their presenting symptoms, nasal endoscope, CT scanning, and pathology were analyzed respectively. RESULTS: Among the 267 (71.01%) patients with inflammatory disease, there were 4 pathological types. And there were 8 pathological types in 60 (15...
March 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29737375/vista-expression-on-tumor-infiltrating-inflammatory-cells-in-primary-cutaneous-melanoma-correlates-with-poor-disease-specific-survival
#18
Lawrence F Kuklinski, Shaofeng Yan, Zhongze Li, Jan L Fisher, Chao Cheng, Randolph J Noelle, Christina V Angeles, Mary Jo Turk, Marc S Ernstoff
Adaptive immune responses contribute to the pathogenesis of melanoma by facilitating immune evasion. V-domain Ig suppressor of T-cell activation (VISTA) is a potent negative regulator of T-cell function and is expressed at high levels on monocytes, granulocytes, and macrophages, and at lower densities on T-cell populations within the tumor microenvironment. In this study, 85 primary melanoma specimens were selected from pathology tissue archives and immunohistochemically stained for CD3, PD-1, PD-L1, and VISTA...
May 8, 2018: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/29715570/what-tactics-should-a-surgeon-choose-to-treat-a-black-extracerebral-tumor-a-case-report-of-psammomatous-melanotic-schwannoma-of-meckel-s-cave-and-literature-review
#19
Galina I Moisak, Dmitry E Matsko, Sergey V Chernov, Aleksandr B Dmitriev, Mikhail E Amelin, Elena A Zhelbunova, Mikhail F Chernov, Jamil A Rzaev
BACKGROUND: Neoplasms located in Meckel's cave account for 0.2-0.5% of all intracranial tumors. This area is the site of many types of pathological lesions, most often trigeminal nerve schwannomas and meningiomas. Melanin-containing tumors are very rare in this area. These tumor types can be suspected if the MR-characteristics of a tumor has some differences in comparison with other types of central nervous system neoplasms. In fact, differential diagnosis of melanotic tumors is based mainly on the histopathological criteria and immunohistochemical profile...
April 28, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29710082/accuracy-of-skin-cancer-diagnosis-by-physician-assistants-compared-with-dermatologists-in-a-large-health-care-system
#20
Alyce M Anderson, Martha Matsumoto, Melissa I Saul, Aaron M Secrest, Laura K Ferris
Importance: Physician assistants (PAs) are increasingly used in dermatology practices to diagnose skin cancers, although, to date, their diagnostic accuracy compared with board-certified dermatologists has not been well studied. Objective: To compare diagnostic accuracy for skin cancer of PAs with that of dermatologists. Design, Setting, and Participants: Medical record review of 33 647 skin cancer screening examinations in 20 270 unique patients who underwent screening at University of Pittsburgh Medical Center-affiliated dermatology offices from January 1, 2011, to December 31, 2015...
April 18, 2018: JAMA Dermatology
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