Representative photomicrographs of a microdissected low-grade and progressed FCL. (A) LGFCL (hematoxylin and eosin). (B) LGFCL before microdissection (CD3 immunostain ). (C) LGFCL after microdissection (CD3 immunostain). (D) Diffuse large-cell lymphoma (hematoxylin and eosin). (E) Diffuse large-cell lymphoma before microdissection (CD3 immunostain). (F) Diffuse large-cell lymphoma after microdissection (CD3 immunostain). Arrows indicate CD3 positive cells in E and F.