Abstract：
BACKGROUND: This paper reports the diagnostic process of a case involving an 86-year-old male patient who was admitted with cough, sputum, and fever, accompanied by persistent leukocytosis.
METHODS: Through a multidisciplinary team (MDT) discussion, the laboratory department identified elevated ferritin levels, prompting clinical consideration of potential malignancy.
RESULTS: Further investigations confirmed the diagnosis of thyroid cancer with multiple lung metastases.
CONCLUSIONS: This case highlights the potential value of ferritin in tumor diagnosis, offering new insights into the etiology of abnormal leukocyte elevation. Additionally, the active involvement of the laboratory department in MDT discussions proves to be crucial for diagnosing challenging cases.
METHODS: Through a multidisciplinary team (MDT) discussion, the laboratory department identified elevated ferritin levels, prompting clinical consideration of potential malignancy.
RESULTS: Further investigations confirmed the diagnosis of thyroid cancer with multiple lung metastases.
CONCLUSIONS: This case highlights the potential value of ferritin in tumor diagnosis, offering new insights into the etiology of abnormal leukocyte elevation. Additionally, the active involvement of the laboratory department in MDT discussions proves to be crucial for diagnosing challenging cases.
摘要：
背景：本文报道了一例因咳嗽入院的86岁男性患者的诊断过程，痰,发烧，伴有持续性白细胞增多。
方法：通过多学科团队（MDT）讨论，实验室发现铁蛋白水平升高，提示临床考虑潜在的恶性肿瘤。
结果：进一步的研究证实了甲状腺癌伴多发肺转移的诊断。
结论：该病例突出了铁蛋白在肿瘤诊断中的潜在价值，为白细胞异常升高的病因提供了新的见解。此外,实验室部门积极参与MDT讨论对于诊断有挑战性的病例至关重要.
方法：通过多学科团队（MDT）讨论，实验室发现铁蛋白水平升高，提示临床考虑潜在的恶性肿瘤。
结果：进一步的研究证实了甲状腺癌伴多发肺转移的诊断。
结论：该病例突出了铁蛋白在肿瘤诊断中的潜在价值，为白细胞异常升高的病因提供了新的见解。此外,实验室部门积极参与MDT讨论对于诊断有挑战性的病例至关重要.
