2 hours agoMember-onlyCLL/SLL with Interfollicular DistrbutionLessons From the Friday Unknowns2 min read2 min readCLL/SLL with Interfollicular Distrbution----
2 hours agoMember-onlyAngioimmunoblastic LymphomaLessons From the Friday Unknowns1 min read1 min readAngioimmunoblastic Lymphoma----
2 hours agoMember-onlyBCL2-Negative Follicular LymphomaLessons From the Friday Unknowns2 min read2 min readBCL2-Negative Follicular Lymphoma----
2 hours agoMember-onlyCD5-Negative Mantle Cell LymphomaLessons From the Friday Unknowns2 min read2 min readCD5-Negative Mantle Cell Lymphoma----
2 hours agoMember-onlyPolymorphous Lymphoproliferative Disorder Arising in Immune DeficiencyLessons From the Friday Unknowns2 min read2 min readPolymorphous Lymphoproliferative Disorder Arising in Immune Deficiency----
Dec 2Member-onlyLeukemic Phase of High-Grade CD10-Positive B-Cell LymphomaLessons From the Friday Unknowns2 min read2 min readLeukemic Phase of High-Grade CD10-Positive B-Cell Lymphoma----
Dec 2Member-onlyMarginal Zone LymphomaLessons From the Friday Unknowns Histologic sections show fragments of fibroadipose tissue involved by an atypical lymphoid infiltrate focally arranged in nodules and sometimes separated by fibrous septa. The lymphoid cells are small, with mature chromatin and scant to moderate amounts of cytoplasm. Occasional large cells are seen, no apoptotic bodies and no necrosis present.2 min read2 min read
Dec 2Member-onlyB-Cell Lymphoma with a Folliuclar Immunophenotype Involving the Skin: Primary Cutaneous Follicle Center Lymphoma vs Large Follicular LymphomaLessons From the Friday Unknowns Histologic sections show fragments of skin and deep dermis involved by lymphoma. The lymphoma has a follicular pattern and is composed predominantly of cleaved and non-cleaved centroblasts, with scattered small centrocytes in the background. No epidermotropism seen.2 min read2 min read
Dec 2Member-onlyNodal T-Follicular Helper Cell Lymphoma, Angioimmunoblastic-TypeLessons From the Friday Unknowns Sections show lymph nodes with complete effacement of the architecture, by a diffuse infiltrate of intermediate size lymphocytes, plasma cells and histiocytes. There is increased vasculature. The neoplastic cells are small to intermediate in size with clear to pale cytoplasm. The nuclei display irregular contours with mature chromatin. There are…2 min read2 min read
Dec 2Member-onlyPrimary Cutaneous Anaplastic Large Cell Lymphoma with IRF4/DUSP22 RearrangementLessons From the Friday Unknowns The skin biopsy shows a dense dermal infiltration with epidermotropism. The infiltrating lymphocytes ranging in size from small to medium size. The epidermis shows epidermotropism of smaller lymphocytes, few of which few are cerebriform. The neoplastic cells display irregular nuclear contours with occasional prominent nucleoli. The cytoplasm is scant to…2 min read2 min read
