A Collision Tumor: Reflectance Confocal Microscopy Features and Correlation between Dermoscopy and Histopathology.

Coexistence of two types of malignant neoplasms, called 'a collision tumor,' is relatively uncommon. Basal cell carcinomas (BCCs) are known to coexist with other cutaneous lesions, but the collision of BCC with malignant melanoma is rare. We report a rare case of BCC with underlying lentigo maligna melanoma, focusing on dermoscopic and reflectance confocal microscopic (RCM) findings and their correlation with histopathology.

The investigation of the relationships of demodex density with inflammatory response and oxidative stress in rosacea.

The relationships of demodex density with systemic oxidative stress, inflammatory response, and clinical severity in rosacea are not clear. This study aimed to (a) analyze the levels of systemic oxidative stress, antioxidant capacity, inflammatory parameters, and matrix metalloproteinases (MMPs) in systemic circulation in patients with rosacea, (b) identify the relationship between mite density and both oxidative stress and inflammation, and (c) investigate the role of photoaging and sebum secretion in etiopathogenesis. Forty patients with rosacea and 40 age-, sex-, and skin phenotype-matched healthy volunteers were included in the study.

Evaluation of neutrophil-lymphocyte ratio in patients with early-stage mycosis fungoides.

Neutrophil-lymphocyte ratio (NLR), an indicator of inflammation, has been lately demonstrated as a prognostic factor and an indicator of disease activity in various diseases. However, the effects of NLR have not been investigated in mycosis fungoides (MF) patients yet. The aim of this study is to investigate the relationship between the NLR and treatment demand (systemic PUVA and/or chemotherapy), time to treatment, progression in stage, and time to progression in stage in MF patients.