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Fig. 4 | BMC Cancer

Fig. 4

From: Primary solid lung cancerous nodules with different sizes: computed tomography features and their variations

Fig. 4

ad CT images of lung adenocarcinoma. a CT image shows a small nodule (5 mm) beside a blood vessel in the right upper lobe. b Eight months later, its size increased (10 × 11 mm) but its density was heterogeneous. c Fifteen months later, its size significantly increased (18 × 19 mm); furthermore, its density increased, and it became more homogeneous. Additionally, lobulation sign and peripheral vascular convergence (red circle) were positive. d Histopathologic analysis of the resected nodule revealed invasive adenocarcinoma

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