Cytoplasmic invaginations resembling nuclear inclusions.
D002291:Carcinoma, Papillary / Q000473:pathology; D002467:Cell Nucleus; D003593:Cytoplasm; D003594:Cytoplasmic Granules; D006801:Humans; D066298:In Vitro Techniques; D013964:Thyroid Neoplasms / Q000473:pathology