Objective: Interhemispheric arachnoid cysts (IHACs) are a rare congenital malformation arising from the duplication of membrane cerebral meninges associated with malformations corpus callosum. The scope this study is to describe series cases IHACs treated via neuroendoscopy in reference center. Method: description case children diagnosed IHAC undergoing neuroendoscopic treatment (cystoventricul...

Introduction: Poroid hidradenomas (PH) are rare benign skin adnexal tumours with eccrine differentiation. PH have features of both poroma and hidradenoma, wholly intradermal. Few been reported in the literature, here we present two cases localised to left knee. The common histological examination finding was a circumscribed cyst lined by basaloid cells resembling poroma, occasional ductal struc...

In this paper has been studied the wave equation in some non-classic cases. In the  rst case boundary conditions are non-local and non-periodic. At that case the associated spectral problem is a self-adjoint problem and consequently the eigenvalues are real. But the second case the associated spectral problem is non-self-adjoint and consequently the eigenvalues are complex numbers,in which two ...