Final answer:
Reed-Sternberg cells are abnormal white blood cells that are characteristic of Hodgkin's lymphoma. They appear large and abnormal in shape, with multiple nuclei and prominent nucleoli. Their presence in lymph nodes is a key diagnostic feature of Hodgkin's lymphoma.
Step-by-step explanation:
Reed-Sternberg cells are a type of abnormal white blood cell that are characteristic of Hodgkin's lymphoma. Under a microscope, these cells appear large and abnormal in shape, with multiple nuclei and prominent nucleoli. They are often described as owl-eyed or popcorn-like in appearance. Their presence in lymph nodes is a key diagnostic feature of Hodgkin's lymphoma.