Rosai Dorfman Disease

Lessons From the Friday Unknowns

Histologic sections show a nodule involving fibroadipose tissue. The nodule is composed of many lymphocytes and histiocytes and has some features suggestive of lymph node. However, there is no capsule or subcapsular sinus and therefore we believe this process is extranodal and mimicking a lymph node.

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Siba El Hussein, MD

Siba El Hussein, MD

Hematopathology | Cytopathology | Molecular pathology | Digital pathology | Data science | Machine learning