DIFFERENTIAL DIAGNOSIS OF PERFORATION OF NASAL SYSTEM

Differential diagnosis of perforation of nasal system are : 
-lepromatous leprosy 
-syphilis ( posterior perforation)
-chromium poisoning
-intranasal trauma 
-tuberculosis ( anterior perforation)
-progressive systemic sclerosis 
-Wegener Granulomatosis 
-Rheumatoid arthritis 
-inhalation of arsenic dust
-lupus erythematous 
-work involves in chrome planting