Presentation
Cough and chest pain.
Patient Data
multiple nodular opacities are seen scattered in both lung fields (miliary pattern)
nodular opacity is seen at the left hilum superimposed on the adjacent mediastinum
costophrenic angles are clear
cardiac shadow is within normal limit
Findings are in keeping with miliary lung metastatic deposits, proved by CT chest (not shown) and the patient has been discovered to have thyroid cancer and underwent thyroidectomy.
Ultrasound of thyroid gland was done revealing a left hypoechoic ill-defined nodule with punctate calcification, classified as (TI-RADS 5).
Case Discussion
The lungs are the second most frequent site of metastatic growth from extra-thoracic malignancies, with secondary pulmonary lesions being detected in 20–54% of cases.
The most common primary tumors to result in pulmonary metastases include breast, colorectal, renal carcinoma, uterine leiomyosarcoma, and head & neck carcinoma.
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