disease has location eye adnexa disorder head and neck neoplasm non-Hodgkin lymphoma ocular adnexal lymphoma A non-Hodgkin lymphoma arising from the conjunctiva, lacrimal gland, lacrimal drainage apparatus, eyelids, or other orbital tissues around the eye. The vast majority of cases are extranodal marginal zone lymphomas of mucosa-associated lymphoid tissue, however, other histologic types of lymphomas can originate from ocular adnexal tissues, including rare cases of NK/T-cell lymphomas of nasal type. OAL UMLS:C2981712 GARD:0025195 MONDO:0020646 ocular adnexa non-Hodgkin lymphoma MEDGEN:453939 NCIT:C88145 non-Hodgkin lymphoma of ocular adnexa ocular adnexal lymphoma ocular adnexa