Lung mass 4cm usually asymptomatic

Lung mass 4 cm without any clinical symptoms, is the need for further investigation of the cause. For lung mass, first of all should be alert to whether the lung malignant tumor. If the mass with lobulation, spiculation, pleural traction and enhancement and other related signs, more alert to the possibility of malignant tumor. In addition, it may be benign lesions, such as lung hamartoma may appear as a lung mass 4 cm. For example, some special infections may also present as a 4cm lung mass. Therefore, if a 4cm lung mass is found on chest CT, further examination is needed to clarify the cause, and sometimes lung biopsy may be needed for further auxiliary diagnosis.