Our presentation illustrates a rare case of primary renal pelvis malignant melanoma in a 35-year-old man. The diagnosis of malignant melanoma was based on immunophenotype and the detection of intracellular melanin pigment. The renal origin was proven by the presence of scattered melanocytes within the urothelium of the pelvis. The tumor exhibited extensive clear cell change that closely mimics ...

Introduction: Facial melanocytic nevi whether acquired or congenital may pose an aesthetic problem for many patients, especially women. There are many methods of removal of melanocytic nevi including surgical and non-surgical. However, surgical excision by classical fusiform excision remains the most widely used and one of the best methods taking all perspectives into consideration. Aim: To eva...

background & objective: chronic non healing ulcers or scar undergoing malignant transformation is a rare phenomenon with an estimated incidence of 2%. though, numerous predisposing factors have been identified, still it is rarely diagnosed and commonly mistaken for a benign condition. the objective of this study was to verify the efficacy of the fine needle aspiration cytology/ scrape cytol...

BACKGROUND Congenital melanocytic nevi may have various shapes according to the anatomic location. Therefore, it is desirable to apply proper surgical designs to the diverse forms considering the characteristics of the sites as well as the shape and size. OBJECTIVE The purpose of this article is to introduce a new scar-saving flap design for semicircular defects after removing congenital mela...

We propose a novel method for quantitative interpretation of uncalibrated optical images which is derived explicitly from an analysis of the image formation model. Parameters characterising the tissue are recovered from images acquired using filters optimised to minimise the error. Preliminary results are shown for the skin, where the technique was successfully applied to aid the diagnosis and ...