Cheva, A., Tsagkaropoulos, S., Pepis, P., Syrnioti, A., & Foroulis, C. (2022). Uncommon first diagnosis of metastatic papillary thyroid carcinoma with “signet-ring” cells morphology through pericardial effusion. Archives of Case Reports, 6(1), 005–008. https://doi.org/10.29328/journal.acr.1001057