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Every dated change on the records linked to Mediastinal grey zone lymphoma, newest first: approvals and regulatory steps on its medicines, trials that reported, guideline versions, milestones, and when this page itself was checked. Dates come from the records; none is inferred. Orientation, not medical advice.
The diagnosis needs a generous biopsy, because the appearance varies across a single tumour and a core needle may sample only the part that looks like one of the neighbouring diseases. Both 2022 classifications require involvement of the mediastinum: an identical-looking tumour elsewhere in the body is diffuse large B-cell lymphoma, not otherwise specified. A nodular sclerosis classic Hodgkin lymphoma with variable CD20 expression remains Hodgkin lymphoma and is not reclassified here.
WHO-HAEM5 and the International Consensus Classification both adopted the name mediastinal grey zone lymphoma and both reassigned non-mediastinal cases to diffuse large B-cell lymphoma, not otherwise specified.