Cervical lymph node metastasis and early surgical outcomes of diffuse sclerosing variant of papillary thyroid carcinoma at Vietnam National Cancer Hospital

Ngo Quoc Duy, Tran Hung Anh, Ngo Xuan Quy

Main Article Content

Abstract

Diffuse sclerosing variant (DSV) of papillary thyroid carcinoma (PTC) is a rare subtype of papillary thyroid cancer. This study aimed to evaluate cervical lymph node metastasis and early surgical outcomes in patients with papillary thyroid carcinoma of the diffuse sclerosing variant treated at K Hospital. A retrospective–prospective descriptive study was conducted on 72 patients who underwent surgery from January 2016 to January 2025. 54.2% of patients had tumors staged pT3–pT4 after surgery, and 84.7% had cervical lymph node metastasis with distant metastasis at 4.2%. Lateral neck lymph node metastasis was more common in patients aged ≤ 30 years old, with bilateral thyroid involvement, and with tumors staged pT3–pT4 (p < 0,05). Total thyroidectomy was performed in 97.2% of patients, 75% underwent lateral neck dissection, and 94.4% received adjuvant radioiodine (I131) therapy. The mean hospital stay was 5.9 ± 1.4 days. Common postoperative complications included transient hypoparathyroidism (29.2%) and transient recurrent laryngeal nerve palsy (13.9%). In conclusion, papillary thyroid carcinoma of the diffuse sclerosing variant has a high rate of cervical lymph node metastasis, particularly in younger patients and those with advanced-stage tumors; total thyroidectomy combined with appropriate neck dissection and adjuvant I131 therapy is an effective treatment strategy with acceptable early outcomes.

Article Details

References

1. WHO. Cancer Today. Accessed September 22, 2025. https://gco.iarc.who.int/today/
2. Pillai S, Gopalan V, Smith RA, et al. Diffuse sclerosing variant of papillary thyroid carcinoma-an update of its clinicopathological features and molecular biology. Crit Rev Oncol Hematol. 2015;94(1):64-73. doi:10.1016/j.critrevonc.2014.12.001
3. Yang L, Zhao M, Xiao L, et al. Diffuse Sclerosing Variant of Papillary Thyroid Carcinoma Is Related to a Poor Outcome: A Comparison Study Using Propensity Score Matching. Endocr Pract. 2023;29(10):779-786. doi:10.1016/j.eprac.2023.05.003
4. Cavaco D, Martins AF, Cabrera R, et al. Diffuse sclerosing variant of papillary thyroid carcinoma: outcomes of 33 cases. Eur Thyroid J. 2021;11(1):e210020. doi:10.1530/ETJ-21-0020
5. Malandrino P, Russo M, Regalbuto C, et al. Outcome of the Diffuse Sclerosing Variant of Papillary Thyroid Cancer: A Meta-Analysis. Thyroid. 2016;26(9):1285-1292. doi:10.1089/thy.2016.0168
6. Kim H, Kim HI, Kim SW, et al. Prognosis of Differentiated Thyroid Carcinoma with Initial Distant Metastasis: A Multicenter Study in Korea. Endocrinol Metab. 2018;33(2):287-295. doi:10.3803/EnM.2018.33.2.287
7. Regalbuto C, Malandrino P, Tumminia A, et al. A diffuse sclerosing variant of papillary thyroid carcinoma: clinical and pathologic features and outcomes of 34 consecutive cases. Thyroid. 2011;21(4):383-389. doi:10.1089/thy.2010.0331
8. Chử Quốc Hoàn. Nhận xét một số đặc điểm lâm sàng, tỉ lệ các nhóm mô bệnh học và kết quả điều trị ung thư tuyến giáp tại Bệnh viện K, Luận văn Bác sĩ nội trú bệnh viện, Trường Đại học Y Hà Nội. Trường đại học Y Hà Nội. Published online 2013.
9. Spinelli C, Strambi S, Bakkar S, et al. Surgical Management of Diffuse Sclerosing Variant of Papillary Thyroid Carcinoma. Experience in 25 Patients. World J Surg. 2020;44(1):155-162. doi:10.1007/s00268-019-05230-5
10. Zhang Y, Ji X, Zhang X, et al. Risk factors for cervical lymph node metastasis at different lateral levels in papillary thyroid cancer: level III as the central hub. Gland Surg. 2024;13(11):1921-1930. doi:10.21037/gs-24-299
11. Du J, Yang Q, Sun Y, et al. Risk factors for central lymph node metastasis in patients with papillary thyroid carcinoma: a retrospective study. Front Endocrinol (Lausanne). 2023;14:1288527. doi:10.3389/fendo.2023.1288527
12. Roh JL, Park JY, Park CI. Total Thyroidectomy Plus Neck Dissection in Differentiated Papillary Thyroid Carcinoma Patients. Ann Surg. 2007;245(4):604-610. doi:10.1097/01.sla.0000250451.59685.67
13. Ning K, Yu Y, Zheng X, et al. Risk factors of transient and permanent hypoparathyroidism after thyroidectomy: a systematic review and meta-analysis. Int J Surg. 2024;110(8):5047-5062. doi:10.1097/JS9.0000000000001475