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What is Giant cells seen in Measles are called? and explain in detail?
Lymphoid organs typically have marked follicular hyperplasia, large germinal centers and randomly distributed multinucleated giant cells called Wahin-Finkeldey cells, which have eosinophilic nuclear and cytoplasmic inclusion bodies.Found in the paracoical region of hyperplastic lymph nodes in some patients of measles and AIDS. It consists of fused lymphocytes and can be seen in a lymph node biopsy after a measles vaccination.Ref: Robbins Pathology, 7th Ed, page 363