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Comparison of the accuracy of human readers versus machine-learning algorithms for pigmented skin lesion classification: an open, web-based, international, diagnostic study.

BACKGROUND: Whether machine-learning algorithms can diagnose all pigmented skin lesions as accurately as human experts is unclear. The aim o … c keratoses and Bowen's disease; basal cell carcinoma; benign keratinocytic lesions including solar lentigo, seborrheic keratosis and lichen planus-like keratosis; dermatofibroma; melanoma; melanocytic nevus; and vascular lesions. The two main outcomes were the differences in the number of correct specific diagnoses per batch between all human readers and …

A retrospective review of the management of patients following a malignancy diagnosis on biologic therapies for the treatment of dermatological disorders.

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… The malignancies diagnosed were: lymphoma ( n = 3), ovarian cancer ( n = 2), breast cancer ( n = 1), esophageal cancer ( n = 1), gastric cancer ( n = 1), bladder cancer ( n = 1), testicular cancer ( n = 1), and lentigo maligna ( n = 1). … Table II Patient characteristics DLQI , Dermatology life quality index; LM , lentigo maligna; N , no; PASI , psoriasis assessment severity index; Y , yes. Patient | Age (y) | Sex | Dermatology diagnosis | Biologic agent | Cancer diagnosis | Biologic stopped? …

Desmoplastic Melanoma as a Diagnostic Pitfall.

Dear Editor, Desmoplastic melanoma (DM) is a rare histological subtype of melanoma, usually presenting as a slowly-growing, amelanotic, disc … ions, including Bowen's disease, desmoplastic nevus, basal cell carcinoma, squamous cell carcinoma, lentigo maligna, dermatofibrosarcoma protuberans, peripheral nerve sheath tumors, cysts, or hypertrophic/keloid scars (4). Regarding its appearance, at the time of diagnosis DM frequently presents as advanced lesions with deep infiltration. A 60-year-old ma …

Genetic 3'UTR variation is associated with human pigmentation characteristics and sensitivity to sunlight.

Sunlight exposure induces signalling pathways leading to the activation of melanin synthesis and tanning response. MicroRNAs (miRNAs) can regulate the expression of genes involved in pigmentation pathways by binding to the complementary sequence in their 3'untranslated regions (3'UTRs). Therefore, 3'UTR SNPs are predicted to modify the ability of miRNAs to target genes, resulting in differential gene expression. In this study, we investigated the role in pigmentation and sun-sensitivity traits, as well as in melanoma susceptibility, of 38 different 3'UTR SNPs from 38 pigmentation-related genes

Infliximab for severe, treatment-resistant psoriasis: a prospective, open-label study.

BACKGROUND: Infliximab, a mouse-human chimeric monoclonal antibody directed against tumour necrosis factor-alpha, has been shown to be effective for moderate to severe psoriasis, but there are few data published on its use in recalcitrant, treatment-resistant disease or in combination with other antipsoriatic therapies. OBJECTIVES: To report our experience with infliximab in the treatment of patients attending a tertiary referral service with severe recalcitrant disease. METHODS: All patients attending a tertiary referral service for severe psoriasis who were treated with infliximab between

Does the morphology of cutaneous melanoma help to explain the international differences in survival? Results from 1 578 482 adults diagnosed during 2000-2014 in 59 countries (CONCORD-3).

BACKGROUND: CONCORD-3 highlighted wide disparities in population-based 5-year net survival for cutaneous melanoma during 2000-2014. Clinical … Diseases for Oncology, third revision morphology code 8720), superficial spreading melanoma (8743), lentigo maligna melanoma (8742), nodular melanoma (8721), acral lentiginous melanoma (8744), desmoplastic melanoma (8745) and other morphologies (8722-8723, 8726-8727, 8730, 8740-8741, 8746, 8761, 8770-8774, 8780). We estimated net survival using the nonpar …

Carney complex.

We report an illustrated case of a 61-year-old woman with multiple atrial myxomas and cutaneous hyperpigmentation as part of the Carney complex. The case is notable for an unusually late presentation in life and a strong family history of atrial myxomas and sudden death. The importance of regular life-long echocardiographic screening and surveillance in all family members of affected cases is emphasized.

The Role of TRL7/8 Agonists in Cancer Therapy, with Special Emphasis on Hematologic Malignancies.

Toll-like receptors (TLR) belong to the pattern recognition receptors (PRR). TLR7 and the closely correlated TLR8 affiliate with toll-like receptors family, are located in endosomes. They recognize single-stranded ribonucleic acid (RNA) molecules and synthetic deoxyribonucleic acid (DNA)/RNA analogs-oligoribonucleotides. TLRs are primarily expressed in hematopoietic cells. There is compiling evidence implying that TLRs also direct the formation of blood cellular components and make a contribution to the pathogenesis of certain hematopoietic malignancies. The latest research shows a positive ef

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… Studies also showed that imiquimod therapy may be used as an adjuvant therapy after surgery in patients with lentigo maligna, which is capable of reducing recurrence rates [ 124 , 128 ]. … [Artículo traducido] Serie de 14 casos de tratamiento con imiquimod tópico al 5% en lentigo maligno: Modalidades terapéuticas y claves para detectar recidivas. …

[Survival analysis in patients with cutaneous malignant melanoma].

INTRODUCTION: Cutaneous malignant melanoma (MM) takes only 3% of all malignant tumours of the skin, but for reason of its increased frequenc … superficial spreading melanoma (SSM) in 105 (31.1%) patients, acral melanoma (AM) in 39 (11.5%) and lentigo malignant melanoma (LMM) in 32 (9.4%) patients (Table 1). Five-year survival rate was calculated according to Kaplan-Meier's method and significance of the difference between some categories was tested by Long-Rank's test; the significance less than …

The National Cancer Data Base report on cutaneous and noncutaneous melanoma: a summary of 84,836 cases from the past decade. The American College of Surgeons Commission on Cancer and the American Cancer Society.

BACKGROUND: This study reviews the case-mix characteristics, management, and outcomes of melanoma cases occuring in the U.S. within the last decade. METHODS: Analyses of the National Cancer Data Base (NCDB) were performed on cases diagnosed between 1985 through 1994. A total of 84,836 cases comprised of cutaneous and noncutaneous melanomas were evaluated. RESULTS: The percentages of melanomas that were cutaneous, ocular, mucosal, and unknown primaries were 91.2%, 5.2%, 1.3%, and 2.2%, respectively. For cutaneous melanomas, the proportion of patients presenting with American Joint Committee o

Folliculotropism in Actinic Keratoses in Patients not Responding to Treatments: A Pilot Study.

Dear Editor, Actinic keratoses (AK) have a high prevalence in the general population, with greater rates in Caucasian patients after the fou … ma is still debated, but it is considered a parameter that may correlate with treatment response in lentigo maligna and disease progression or recurrences in invasive tumors (6,7). These studies draw particular attention to the potential role of hair bulge compartment stem cells in favoring tumor progression through the expression of adhesion molecules, c …

Skin cancer: understanding the journey of transformation from conventional to advanced treatment approaches.

Skin cancer is a global threat to the healthcare system and is estimated to incline tremendously in the next 20 years, if not diagnosed at an early stage. Even though it is curable at an early stage, novel drug identification, clinical success, and drug resistance is another major challenge. To bridge the gap and bring effective treatment, it is important to understand the etiology of skin carcinoma, the mechanism of cell proliferation, factors affecting cell growth, and the mechanism of drug resistance. The current article focusses on understanding the structural diversity of skin cancers, tr

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… The second most prevalent subtype of melanoma is lentigo malign (LM). It often appears as a small, flat, tan, irregular-bordered, asymmetric macule on sun-exposed areas. With time, the macule grows larger and starts to change color. … Hutchinson's freckle, also known as lentigo malign, begins as a pigmented macule that grows slowly and may stay in place for many years. These melanomas are substantially more prevalent in adults over the age of 60 and are commonly referred to as “senile freckles". …

Radiotherapy based management during Covid-19 pandemic - A systematic review of presented consensus and guidelines.

Treatment management of cancer patients in the radiation oncology departments during the current COVID-19 pandemic is challenging. A systematic review of published consensus/guidelines on the role of radiotherapy prioritization, suggested treatment protocols, and set up management was undertaken based on the PRISMA protocol and through PubMed/PMC, Scopus, Google Scholar, Web of Science databases until 01/20/2021. One hundred and sixty-eight publications or regional consensus were included. Summary of recommendations contained: (1) using hypo-fractionated (Hypo-F) regimens for therapeutic/palli

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… RT (excluding brain metastases): 20 Gy /4 frs instead of 20 Gy / 5frs, 30 Gy / 8 frs instead of 30 Gy/ 10 frs or single fraction of 8-10 Gy ( Rembielak et al., 2021 ) Suspend all treatment forms until the pandemic is over ( Hinduja et al., 2020 ) Rare indications of Melanoma (e.g., lentigomaligna, lentigo … maligna, LMM: lentigo maligna melanoma, NMSC: non-melanoma skin cancer, LVI: lymphovascular invasion, PTV: planning tumor volume, PMRT: postmastectomy radiation therapy, NAC: neoadjuvant chemotherapy, TNBC: triple negative breast cancer, BC: breast cancer, BCT: breast conserving therapy, NCCN: National …

Implementation of patient-reported outcome measures and patient-reported experience measures in melanoma clinical quality registries: a systematic review.

ObjectivesTo identify patient-reported outcome measures (PROMs) and patient-reported experience measures (PREMs) in clinical quality registries, for people with cutaneous melanoma, to inform a new Australian Melanoma Clinical Outcomes Registry; and describe opportunities and challenges of routine PROM/PREM collection, especially in primary care.DesignSystematic review.Primary and secondary outcome measuresWhich PROMs and PREMs are used in clinical quality registries for people with cutaneous melanoma, how they are collected, frequency of collection, participant recruitment methods and funding

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… reported experience measures’ (including abbreviations PROMs or PREMs), along with related keywords for patients (consumers, participants) and outcomes (satisfaction, experience, assessment, symptom-measure), or quality of life, were combined with Boolean logic (AND/OR) with terms for melanoma (including lentigo …

Involvement of the Opioid Peptide Family in Cancer Progression.

Peptides mediate cancer progression favoring the mitogenesis, migration, and invasion of tumor cells, promoting metastasis and anti-apoptotic mechanisms, and facilitating angiogenesis/lymphangiogenesis. Tumor cells overexpress peptide receptors, crucial targets for developing specific treatments against cancer cells using peptide receptor antagonists and promoting apoptosis in tumor cells. Opioids exert an antitumoral effect, whereas others promote tumor growth and metastasis. This review updates the findings regarding the involvement of opioid peptides (enkephalins, endorphins, and dynorphins

FGFR3, HRAS, KRAS, NRAS and PIK3CA mutations in bladder cancer and their potential as biomarkers for surveillance and therapy.

BackgroundFifty percent of patients with muscle-invasive bladder cancer (MI-BC) die from their disease and current chemotherapy treatment only marginally increases survival. Novel therapies targeting receptor tyrosine kinases or activated oncogenes may improve outcome. Hence, it is necessary to stratify patients based on mutations in relevant oncogenes. Patients with non-muscle-invasive bladder cancer (NMI-BC) have excellent survival, however two-thirds develop recurrences. Tumor specific mutations can be used to detect recurrences in urine assays, presenting a more patient-friendly diagnostic

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… Proc Natl Acad Sci U S A 104 13450 13454 17673550 10.1073/pnas.0705218104 PMC1948900 48 Hafner C Stoehr R van Oers JM Zwarthoff EC Hofstaedter F 2009 FGFR3 and PIK3CA mutations are involved in the molecular pathogenesis of solar lentigo. …

Crosstalk of thioredoxin system and programmed cell death: from pathophysiology to novel therapy.

The thioredoxin (Trx) system, an integral component of cellular redox regulation, preserves protein dithiol-disulfide equilibrium through its conserved Cys-Gly-Pro-Cys active site and is involved in key cellular functions, including cell proliferation, apoptosis, and signal transduction. In cancer biology, the thioredoxin system plays dual roles: overexpression can suppress oxidative stress and promote tumor growth, whereas dysfunction can trigger programmed cell death (PCD). However, a critical area for future research is to delineate how Trx modulates the intricate networks of PCD, and to id