Focal epithelial hyperplasia (FEH) or Heck’s disease is a rare viral infection of the oral mucosa caused by human papilloma virus especially subtypes 13 or 32. The frequency of this disease varies widely from one geographic region and ethnic groups to another. This paper reports an Iranian case of extensive focal epithelial hyperplasia. A 35-year-old man with FEH is described, in whom the lesio...

Hereditary transthyretin amyloidosis belongs to a group of diseases with an autosomal dominant type transmission and heterogeneous clinical picture, which depends on the gene mutation. The leptomeningeal form is rare phenotypic variant predominant involvement brain spinal cord meninges, as well cortical meningeal vessels. main manifestations this phenotype include cephalalgic syndrome, episodes...