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===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
* | *Atypical large lymphoid cells - see ''[[DLBCL]]''. | ||
*Classically associated with: | |||
**Fibrosis | |||
**Clear cells. | |||
Note: | |||
*Neither fibrosis or clear cells are required for the [[diagnosis]] nor are they pathognomonic.<ref name=pmid11251018 >{{Cite journal | last1 = van Besien | first1 = K. | last2 = Kelta | first2 = M. | last3 = Bahaguna | first3 = P. | title = Primary mediastinal B-cell lymphoma: a review of pathology and management. | journal = J Clin Oncol | volume = 19 | issue = 6 | pages = 1855-64 | month = Mar | year = 2001 | doi = | PMID = 11251018 }}</ref> | |||
DDx: | |||
*Other types of [[DLBCL]]. | |||
*Poorly differentiated carcinoma. | |||
Images: | Images: |
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