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Follicular lymphoma (FL) is a predominantly nodal disease and extranodal involvement can be seen in widespread nodal disease. Primary extra-nodal FLs are, however, reported in skin, ocular adenexa, Waldeyer's ring and intestine where the majority are mucosa-associated-lymphoid-tissue (MALT) lymphoma and diffuse large B-cell lymphoma. Primary duodenal follicular lymphoma (FL-D) is a distinct mucosal/submucosal variant of FL.

Post-transplant lymphoproliferative disorders (PTLD) are a heterogeneous group of lymphoid proliferations of varying clonal composition secondary to immunosuppression in solid-organ transplant. Most commonly are of B-cell in origin; T-cell lymphomas are rare (15% of all PTLD).

Description of a rare case of cauda equina: Capillary haemangioma.