2A90.6 Extranodal NK/T-cell lymphoma, nasal type

International Classification of Diseases for Mortality and Morbidity Statistics, 11th Revision, v2024-01

An aggressive, predominantly extranodal, mature T-cell non-Hodgkin lymphoma. It is characterised by an often angiocentric and angiodestructive cellular infiltrate composed of EBV positive NK/T cells. The nasal cavity is the most common site of involvement. Patients often present with midfacial destructive lesions (lethal midline granuloma). The disease may disseminate rapidly to various anatomic sites including the gastrointestinal tract, skin, testis, and cervical lymph nodes. It is also known as angiocentric T-cell lymphoma. The term polymorphic reticulosis has been widely used to describe the morphologic changes seen in this type of lymphoma. However, the latter term may also apply to lymphomatoid granulomatosis, which is an angiocentric and angiodestructive EBV positive B-cell lymphoproliferative disorder.

postcoordination

synonyms

• Extranodal NK/T-cell lymphoma, nasal type

Thank you for choosing Find-A-Code, please Sign In to remove ads.