Lethalmidlinegranuloma is a rare, aggressive Non-Hodgkin lymphoma of the head and neck. … A patient presenting with the above clinical picture should raise suspicion for lethalmidlinegranuloma or other similar diseases. … Lethalmidlinegranuloma, also known as polymorphic reticulosis or malignant midline reticulosis, is an aggressive Non-Hodgkin lymphoma of the head and neck that arises in
Disease-specific survival at 5 and 10 years for pcALCL was 85% in a 2003 study.  Associated lymphomas more rarely include immunoblastic lymphoma, lethalmidlinegranuloma … These include immunoblastic lymphoma, lethalmidlinegranuloma (currently considered as natural killer cell lymphoma in many patients), and systemic lymphocytic lymphoma.