Background: Certain melanoma histotypes carry a worse prognosis than others. We aimed to identify patient related factors associated with specific melanoma histotypes.
Patients And Methods: Single center study including 347 melanoma patients, prospectively assessed for 22 variables leading to a database of more than 7,600 features.
Results: Melanomas were histologically categorized as superficial spreading (SSM, 70.6%), nodular (NM; 12.7%), acrolentiginous (ALM; 4.0%), lentigo maligna (LMM; 3.8%), or unclassified melanoma (UCM; 8.9%). Well recognized melanoma risk indicators (i. e. many atypical nevi, freckles, previous melanoma), were significantly associated with SSM and LMM histotypes. NM and ALM patients carried significantly less common and/or atypical nevi. NM were mostly self-detected or detected by relatives. In contrast, SSM, LMM, and ALM were most frequently detected by dermatologists. NM and UCM were preferentially located on poorly observable sites, SSM on the lower limbs, ALM on plantar sites, and LMM on the head and neck. ALM and LMM patients were significantly older than other patients. A multinomial logistic model was designed to predict a certain melanoma histotype (overall accuracy 81%), which could be helpful to focus the attention of clinicians or may be integrated into fully automated diagnostic algorithms.
Conclusions: Melanoma histotypes show significant differences regarding patients' characteristics.
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http://dx.doi.org/10.1111/ddg.12561 | DOI Listing |
Ther Adv Med Oncol
January 2025
Department of Precision Medicine, Università degli Studi della Campania 'Luigi Vanvitelli', Naples, Italy.
Gastric cancer (GC), one of the tumours with the highest mortality worldwide, is not a homogeneous disease, showing different features according to location, macroscopic aspect, histotype and molecular alterations. Adenocarcinoma is the most frequent epithelial GC (95%), the remaining 5% comprising rare epithelial tumours with their peculiarities, behaviour and incidence <6 cases/100,000/year. Due to the low number of cases, many aspects must be elucidated in this context.
View Article and Find Full Text PDFVet Sci
December 2024
Ospedale Veterinario I Portoni Rossi, Anicura Italy Holding, via Roma 51, 40069 Zola Predosa, Italy.
An 11-year-old spayed female Beagle presented with tenesmus and was identified with a rectal wall mass. Diagnostic imaging (abdominal ultrasound and computed tomography) localised the mass in the right rectal wall and documented no evidence of metastatic disease. Subsequently, the dog underwent surgery for tumour excision.
View Article and Find Full Text PDFSemin Oncol
October 2024
Medical Oncology Unit, Humanitas Gavazzeni, Bergamo Italy; University of Milan, Milano, Italy. Electronic address:
Objectives: We previously showed that men with melanoma harboring BRAF mutations had significantly lower benefit from targeted therapy as compared with women Here we explored the hypothesis that such gender-based dimorphism in the efficacy of BRAF-pathway blockade extends to other tumor histotypes carrying pathogenic BRAF-mutations.
Methods: We retrospectively analyzed data from a cohort of patients with advanced colorectal-cancer (CRC) harboring BRAF V600E mutations, treated with anti-EGFR/BRAF/MEK targeted therapy. The primary objective was to assess the association between gender and outcome of patients treated with targeted therapy, in terms of overall response rate (ORR), progression-free survival (PFS) and overall survival (OS).
Acta Otorhinolaryngol Ital
December 2024
Unit of Otorhinolaryngology - Head and Neck Surgery, ASST Spedali Civili of Brescia, Brescia, Italy.
Animals (Basel)
August 2024
Department of Veterinary Sciences, University of Turin, 10095 Grugliasco, Italy.
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