system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
In a patient, corneal scraping reveals narrow angled septate hyphae, which of the following is the likely etiological agent
assistant
The correct answer is  Aspergillus has non pigmented septate hyphae with characteristic dichotomous branching at an angle of approximate 45degrees. it causes superficial infections like sinusitis, otomycosis and mycotic keratitis. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition .