Collision Lesions: Genuine Collision (Conflict) or not?

By definition, the term "collision lesion" refers to two or more tumors coinciding in the same anatomic position or visceral organ. Collision lesions coexisting on the same skin location are defined as collision skin lesions (CSLs). Although this term implies a conflict between the tumors, this is not the case.

Melanoma Controls the Metastatic Process only in Terms of Metastatic Cell Dissemination - What Is Responsible for Metastatic Cell Proliferation?

The process of melanoma metastasis can be divided into two stages of metastatic cell dissemination and proliferation. The whole process should be observed and distinguished through the variable or prism of time. The fact that melanoma metastases are detected in visceral organs at the stage when they are macroscopically visible does not imply that their onset has occurred much earlier.

Dermatomycosis in Cutaneous Tumors is a Predictor for Non-malignancy: A Cross-sectional Study.

The aim of this study was to evaluate the presence of spores and/or hyphae in benign cutaneous tumors (CT) and compare their presence in malignant cutaneous tumors. In this cross-sectional study we evaluated 328 CTs positive for spores and/or hyphae. The results show that the greatest number of involved CTs which contained spores and/or hyphae were found in compound nevi 181 (55.

Association between Blood Group and Nonmelanoma Skin Cancers (Basal Cell Carcinoma and Squamous Cell Carcinoma).

Background: Development of nonmelanoma skin cancers (NMSCs) has been associated with certain risk factors, but studies of the association between ABO blood group and NMSCs have been rare and inconclusive. The aim of this study was to assess the association of the previously known risk factors and blood group as a new potential risk factor in NMSCs.

Methods: The study included 401 patients, 202 men, and 199 women, which included 367 diagnosed cases of basal cell carcinoma and 148 diagnosed cases of squamous cell carcinoma.