Extranodal lymphoma in the head and neck region.
D000293:Adolescent; D001707:Biopsy, Needle; D002648:Child; D005260:Female; D006258:Head and Neck Neoplasms / Q000473:pathology*; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000473:pathology*; D008297:Male