This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: ENT
[{'content': 'Rhinosporidiosis is caused by \nSelect and explain. \nA. HPV, B. R. seeberi, C. Klebsiella rhinoscleromatis, D. EBV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Rhinosporidiosis is a chronic granulomatous infection of the mucous membrane.\nThe ecological agent is Rhinosporidium seeberi.\nRhinosporidium seeberi is an aquatic bacterium (not a fungus). Infection usually results from a local trauma inoculation with the organism.\nIt is seen in India, Pakistan and Sri Lanka. In India, most of the cases are seen in Southern states.\nInfection of the nose and nasopharynx is observed in 70% of persons with rhinosporidiosis;\xa0infection of the palpebral conjunctiva or associated structures (including lacrimal apparatus) is observed in 15% of cases.\nOther structures of the mouth and upper airway may be sites of disease. Disease of the skin, ear, genitals and rectum has also been described.\nRhinosporidiosis is an infection that typically limited to the mucosal epithelium.\nThe disease progress with local replication of R. seeberi and associated hyperplastic growth of host tissue and a localized immune response.\nClinical features of Rhinosporidiosis\nRhinosporidiosis presents as soft leafy polypoidal mass (soft polyp), which is pink to purple in colour studded with white dots,\xa0i.e., strawberry appearance. This appearance results from sporangia, which is visible as grey or yellow spots in the vascular polypoid masses.\nBecause the polyps are vascular and friable, they bleed easily upon manipulation. \nTreatment -\xa0The treatment of choice is surgical excision.\nComplete excision of mass is done with diathermy knife and cauterization of the base. Dapsone is being tried for treating rhinosporidiosis but with limited success.', 'role': 'assistant'}]