Paraneoplastic cerebellar degeneration (PCD) is a rare immune-mediated disease that develops mostly in the setting of neoplasia and offers a unique prospect to explore the interplay between tumor immunity and autoimmunity. In PCD. the deleterious adaptive immune response targets self-antigens aberrantly expressed by tumor cells. mostly gynecological cancers. https://parisnaturalfoodes.shop/product-category/biocell-collagen/