Doh Young Lee1, Jae-Kyung Won2, Se-Hoon Lee3, Do Joon Park4, Kyeong Cheon Jung2, Myung-Whun Sung5, Hong-Gyun Wu6, Kwang Hyun Kim5, Young Joo Park4, J Hun Hah5. 1. 1 Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine , Seoul, Korea. 2. 2 Department of Pathology, Seoul National University College of Medicine , Seoul, Korea. 3. 3 Division of Hematology-Oncology, Department of Medicine, Samsung Medical Center, Sungkyunkwan University School of Medicine , Seoul, Korea. 4. 4 Department of Internal Medicine, Seoul National University College of Medicine , Seoul, Korea. 5. 5 Department of Otorhinolaryngology-Head and Neck Surgery and Cancer Research Institute, Seoul National University College of Medicine , Seoul, Korea. 6. 6 Department of Radiation Oncology, Seoul National University College of Medicine , Seoul, Korea.
Abstract
BACKGROUND: This study aimed to analyze the temporal changes of the clinicopathologic characteristics, and the long-term outcomes, of various types of anaplastic thyroid cancer (ATC) and poorly differentiated thyroid cancer (PDTC). METHODS: A retrospective analysis was conducted on patients with ATC and PDTC who were treated from 1985 to 2013. The outcome measures included the clinical response to treatment and the survival rates of three separate thyroid cancer groups: ATC, PDTC, and differentiated thyroid cancer (DTC) with anaplastic foci. RESULTS: The five-year disease-specific survival rate was significantly higher, both in DTC with anaplastic foci and in PTDC (81.3% and 65.8%, respectively), than it was in ATC (14.3%; p < 0.001). The proportion of cases of DTC with anaplastic foci has been increasing over time, while that of ATC has decreased. The survival rate was found to be significantly higher in resectable tumors (71.4% and 26.5%, respectively; p < 0 .001). In ATC, external beam radiation therapy showed longer survival rates than did surgery-based treatment in unresectable tumors (19.2 vs. 7.7 months, p = 0.006). Adjuvant treatment with external beam radiation or radioactive iodine increased survival duration in PDTC and in DTC with anaplastic foci. Lymphatic invasion was the most significant postoperative prognosticator in ATC (p = 0.013). CONCLUSIONS: The choice of treatment of ATC and PDTC could be modified according to resectability and lymphatic invasion of the cancer.
BACKGROUND: This study aimed to analyze the temporal changes of the clinicopathologic characteristics, and the long-term outcomes, of various types of anaplastic thyroid cancer (ATC) and poorly differentiated thyroid cancer (PDTC). METHODS: A retrospective analysis was conducted on patients with ATC and PDTC who were treated from 1985 to 2013. The outcome measures included the clinical response to treatment and the survival rates of three separate thyroid cancer groups: ATC, PDTC, and differentiated thyroid cancer (DTC) with anaplastic foci. RESULTS: The five-year disease-specific survival rate was significantly higher, both in DTC with anaplastic foci and in PTDC (81.3% and 65.8%, respectively), than it was in ATC (14.3%; p < 0.001). The proportion of cases of DTC with anaplastic foci has been increasing over time, while that of ATC has decreased. The survival rate was found to be significantly higher in resectable tumors (71.4% and 26.5%, respectively; p < 0 .001). In ATC, external beam radiation therapy showed longer survival rates than did surgery-based treatment in unresectable tumors (19.2 vs. 7.7 months, p = 0.006). Adjuvant treatment with external beam radiation or radioactive iodine increased survival duration in PDTC and in DTC with anaplastic foci. Lymphatic invasion was the most significant postoperative prognosticator in ATC (p = 0.013). CONCLUSIONS: The choice of treatment of ATC and PDTC could be modified according to resectability and lymphatic invasion of the cancer.
Authors: Alyaksandr V Nikitski; Susan L Rominski; Vincenzo Condello; Cihan Kaya; Mamta Wankhede; Federica Panebianco; Hong Yang; Daniel L Altschuler; Yuri E Nikiforov Journal: Thyroid Date: 2019-08-16 Impact factor: 6.568
Authors: David C Shonka; Alan Ho; Ashish V Chintakuntlawar; Jessica L Geiger; Jong C Park; Nagashree Seetharamu; Sina Jasim; Amr H Abdelhamid Ahmed; Keith C Bible; Marcia S Brose; Maria E Cabanillas; Kirsten Dabekaussen; Louise Davies; Dora Dias-Santagata; James A Fagin; William C Faquin; Ronald A Ghossein; Raj K Gopal; Akira Miyauchi; Yuri E Nikiforov; Matthew D Ringel; Bruce Robinson; Mabel M Ryder; Eric J Sherman; Peter M Sadow; Jennifer J Shin; Brendan C Stack; R Michael Tuttle; Lori J Wirth; Mark E Zafereo; Gregory W Randolph Journal: Head Neck Date: 2022-03-11 Impact factor: 3.821