30 June 2026
: Case report 
Delayed Thyroid Metastasis of Lung Adenocarcinoma Mimicking Primary Thyroid Carcinoma: A Case Report
Challenging differential diagnosis, Rare coexistence of disease or pathology
Yen Thi Le
AD 1, Hau Xuan Nguyen ADF 2,3,4*, Thai Hong Le BCE 1, Anh Tuan Doan Van BCEF 2, Duong Thai Pham BCE 3, Tuan Minh Vu BCE 3, Hoang Van Nguyen BCE 2
DOI: 10.12659/AJCR.952744
Am J Case Rep 2026; 27:e952744
Figure 1 Ultrasound images of the right thyroid lobe demonstrating a well-defined, mixed-echoic nodule measuring 35×30 mm. The lesion shows smooth margins, no internal calcifications, and no evidence of increased vascularity, consistent with TIRADs 3. (White arrows highlight the lesion boundaries).