Search results for "Skin Neoplasms"

Impact of a preceding radiotherapy on the outcome of immune checkpoint inhibition in metastatic melanoma: a multicenter retrospective cohort study of…

2020

BackgroundImmune checkpoint inhibition (ICI) is an essential treatment option in melanoma. Its outcome may be improved by a preceding radiation of metastases. This study aimed to investigate the impact of a preceding radiotherapy on the clinical outcome of ICI treatment.MethodsThis multicenter retrospective cohort study included patients who received anti-cytotoxic T-lymphocyte-associated protein 4 (CTLA-4) or anti-programmed cell death protein 1 (PD-1) ICI with or without preceding radiotherapy for unresectable metastatic melanoma. ICI therapy outcome was measured as best overall response (BOR), progression-free (PFS) and overall survival (OS). Response and survival analyses were adjusted …

Programmed cell death protein 1 inhibitors in advanced cutaneous squamous cell carcinoma: real-world data of a retrospective, multicenter study

2020

Abstract Background Cutaneous squamous cell carcinoma (cSCC) is one of the most common malignancies of the skin. Even though most patients are sufficiently treated by surgical resection, some will eventually metastasize and need systemic therapy. Phase I and II studies have shown efficacy for programmed cell death protein 1 (PD-1) inhibitors, but cohort sizes are low and real-world data especially on long-term outcome are pending. Methods Patients from six German skin cancer centers treated with PD-1 inhibitors (pembrolizumab, nivolumab or cemiplimab) for advanced cSCC were retrospectively studied. Internal patient records were analyzed for clinical outcome including response, progression-f…

Extended surgical safety margins and ulceration are associated with an improved prognosis in pleomorphic dermal sarcomas

2019

BACKGROUND Pleomorphic dermal sarcomas (PDS) are frequent UV-induced sarcomas of the skin of intermediate grade malignant potential. Despite the fact that PDS have a noteworthy potential to recur (up to 28%) as well as to metastasize (up to 20%), there are no specific clinical guidelines with respect to follow-up these patients. Moreover, little is known about clinical, histological or molecular prognostic factors in PDS. OBJECTIVE The aim of the present study was to identify risk factors to predict relapse in a large multicentre sample cohort of PDS which could aid to optimize personalized treatment recommendations regarding surgical safety margins and adjuvant radiotherapy. METHODS Patien…

Lack of TERT promoter mutations in melanomas with extensive regression

2015

D2-40 negative pyogenic granuloma-like Kaposi's sarcoma: Diagnostic features and histogenetic hypothesis of an uncommon skin tumor in HIV-negative pa…

2015

Locate full-text(opens in a new window)|View at Publisher| Export | Download | Add to List | More... Pathology Research and Practice Volume 211, Issue 7, July 01, 2015, Pages 528-532 D2-40 negative pyogenic granuloma-like Kaposi's sarcoma: Diagnostic features and histogenetic hypothesis of an uncommon skin tumor in HIV-negative patients (Article) Cabibi, D.a, Giannone, A.G.a , Guarnotta, C.a, Schillaci, O.b, Franco, V.a a Department of Sciences for Promotion of Health and Mother and Child Care, University of Palermo, Palermo, Italy b Servizio di Anatomia Patologica, Dipartimento Oncologico di III livello, La Maddalena Casa di Cura di Alta Specialità, Palermo, Italy View references (20) Abst…

Evaluation of DNA ploidy and degree of DNA abnormality in benign and malignant melanocytic lesions of the skin using video imaging.

2000

BACKGROUND Making a morphologic distinction between benign and malignant melanocytic tumors of the skin is frequently difficult, especially because “gray zones” between these lesions often exist. DNA image cytometry as an adjuvant method for the diagnosis and prognostic prediction of premalignant lesions and malignant tumors of many other organs is already well established. The aim of this study was to determine whether DNA image cytometry is helpful in distinguishing benign from malignant melanocytic lesions and whether cytometry would give valid information with which to predict the prognoses associated with malignant melanomas. METHODS DNA image cytometry was performed on 127 benign and …

Mid-term trends and recent birth-cohort-dependent changes in incidence rates of cutaneous malignant melanoma in Italy

2020

In Oceania, North America and north-western Europe, after decades of increase, cutaneous malignant melanoma (CMM) rates began to stabilise or decline before 2000. Anecdotal evidence suggests that the reversal of the incidence trend is extending to southern Europe. To obtain a formal confirmation, this nationwide study from Italy investigated the incidence trends by birth cohort. Twenty-one local cancer registries covering a population of 15 814 455 provided incidence data for primary CMM registered between 1994 and 2013. Trends in age-standardised rates were analysed using joinpoint regression models and age-period-cohort models. Age-standardised incidence showed a consistent increase throu…

Immunoselection in vivo: independent loss of MHC class I and melanocyte differentiation antigen expression in metastatic melanoma

1997

Peptides derived from melanocyte differentiation antigens have been identified as targets for MHC class I-restricted cytolytic T lymphocytes (CTLs) in human melanoma Regression of antigen-expressing tumors as well as selection of antigen-loss variants in the presence of antigen-specific CTLs have previously been reported. In the present study, we determined the expression of the melanocyte differentiation antigens Melan A/MART-1 and tyrosinase by mRNA analysis and by immunohistochemical staining with the monoclonal antibodies (MAbs) A103 and T311. Co-expression of Melan A/MART-1 and tyrosinase was detected by both methods in 18/20 melanomas tested. However, immunohistochemistry provided add…

Ultrasound-guided fine-needle aspiration cytology in the early detection of melanoma metastases.

2000

BACKGROUND. The early detection and treatment of tumor recurrences in melanoma patients is dependent on reliable, sensitive, and specific techniques to verify suspected tumor metastases. As of now, fine-needle aspiration cytology (FNAC) has yet to establish itself in the routine follow-up of melanoma patients. METHODS. FNAC procedures were performed in melanoma patients with palpable tumors or nonpalpable, ultrasonically suspicious lesions. Cytodiagnostic evaluation of fine-needle samples obtained from suspicious lesions was performed morphologically. Findings were validated either by histopathologic diagnosis or prolonged clinical follow-up. RESULTS. The cytologic examination of 739 FNACs …

Efficacy of ultrasound B-scan compared with physical examination in follow-up of melanoma patients

2001

BACKGROUND The value of ultrasound B-scan for routine follow-up of melanoma patients still is not generally accepted. Therefore, the authors compared the efficacy of physical examination (PE) with ultrasound B-scan (UBS) for detection of regional tumor recurrence in melanoma patients. The aim of the current study was to evaluate whether early detection of metastases improves relapse-free and overall survival. METHODS For a period of 4 years, 829 consecutive melanoma patients were followed prospectively. Physical examination of 3011 patients and concomitant UBS of in-transit routes and regional lymph node basins were performed. Suspicious lesions were diagnosed by fine-needle aspiration cyto…