%0 Journal Article %T Does every classical type of well-differentiated thyroid cancer have excellent prognosis? A case series and literature review %A Krzysztof Kaliszewski %J Archive of "Cancer Management and Research". %D 2019 %R 10.2147/CMAR.S198514 %X Introduction: The classical type of well-differentiated thyroid cancer (WDTC) is the most common endocrine tumor with generally excellent prognosis. WDTC of the WHO stage 1 classification metastasizing to the vertebral column is not often seen for this neoplasm. Here, I present a case series of 14 individuals with aggressive classical type of WDTC %K well-differentiated thyroid cancer %K aggressive %K metastases %K multifocality %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6497976/