Özet:

NK/T Cell lymphoma involving nasal cavity, paranasal sinuses and nasopharynx is a kind of Non-Hodgkin lymphoma which also known as midline lethal granuloma. This rare lymphoma mostly involves midfacial region and has a destructive clinical course with poor prognosis. Clinical presentation includes non-specific sinusitis-like symptoms such as rinorrhea, nasal obstruction, nasal crusting, epistaxis and midfacial swelling.A62-year-old female patient presented with left sided face swelling, hyperemia and nasal obstruction is discussed in this paper. Left intranasal and nasopharyngeal located mass is determined during routine ENT examination. Paranasal Computerized Tomography (PNCT) and Magnetic Resonance Imaging (MRI) of the paranasal sinuses revealed a mass located to the left maxillary sinus, nasal cavity, frontal sinus and extended into periorbital fat tissue. Endoscopic biopsy of the mass reported to be NK/T Cell lymphoma.

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