Table 3. Clinical features of five patients with tumor invasion of the lung parenchyma.

Case	Gender	Age	Symptoms and signs	Tumor size (cm3)	Tumor origin	Malignancy
1	Male	78	Chest tightness and cough	30×25×20	Parietal pleura	Fair
2	Male	32	None	6×5.5×4.5	Visceral pleura	Fair
3	Female	64	Chest tightness and clubbed fingers	18×14×12	Parietal pleura	Fair
4	Male	67	Cough	4×4×3.5	Invasion of the lung parenchyma	Malignancy
5	Female	59	Chest pain, chest tightness, cough, and hypoglycemia	20×19×10	Visceral pleura	Fair