Speckled shadows in both lungs is a descriptive term for imaging tests, usually due to infectious, neoplastic, and hemorrhagic diseases.
1. Infectious lesions: Chest X-ray or chest CT can show speckled shadows in lung infections, which can be acute infections or chronic infected foci, with symptoms such as coughing, sputum, and fever, while patients with chronic infections can be completely asymptomatic. In addition, it should be noted that the old lesions of Mycobacterium tuberculosis infection can also be manifested as speckled shadow in the lungs.
2. Neoplastic lesions: sometimes they may also show speckled images, but they may have other characteristics of neoplastic lesions at the same time, such as irregular shape and blood vessel penetration.
3. Hemorrhagic lesions: pulmonary hemorrhage deposited in the lungs can be manifested as speckled shadows in the lungs.
In addition to the causes mentioned above, speckled shadows in both lungs may also be caused by other reasons, which require timely consultation to find out the causes.