“…Furthermore, as we have encountered in our patient, it might often mimic, from the clinicoradiologic perspective, fungal rhinosinusitis, sinonasal neoplasms (including inverted papilloma, natural killer T cell lymphoma), other granulomatous diseases (such as Wegner's granulomatosis, syphilis, leprosy, sarcoidosis, rhinoscleroma, rhinitis sicca), and retained foreign bodies(8). Beltran et al(11) proposed that the diagnosis of sinonasal tuberculosis should be based on the following criteria: a) absence of clinical response to empirical antibiotics, b) presence of caseous granulomatous inflammatory lesions in the histopathological analysis, and c) identification of Mycobacterium tuberculosis in the surgical specimen. It is true that patients with sinonasal tuberculosis often present with considerable clinical variations.…”