Nasopharyngeal carcinoma – causes for delay of the diagnosis

Desislava Skerleva & Stefan Stoyanov
Introduction: In Bulgaria Nasopharyngeal carcinoma (NPC) is a rare disease, occurring in about 0.5/100 000 people. Unfortunately quite often it is diagnosed in rather advanced stage. Aim: To analyze the available data and determine the factors which lead to delay of diagnosis in Bulgaria. [for full text, please go to the a.m. URL]