Swelling due to fluid retention, usually in dependant ("down hill") areas such as the legs, is called edema. It is sometimes also spelled Oedema, usually in British literature.
Swelling ("tumor" in latin) is one of a complex of findings in inflammation.
inflammation
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edema is often used in reference to swelling and is often graded such as 1,2,3,4.
Aspiration is the medical term meaning food or liquid entering the lungs.
A wheal is a small itchy swelling.
The pleura are the outer lining of the lungs. Pleuritis is a related term, meaning inflammation of that lining.
The medical term for any swelling is called a lump
infrapulmonary
pedal edema
Edema
Edema is the swelling of a large organs. This is medical term.
Pretibial edema is the medical term for swelling around the tibia.
Abscess
pulmonary fibrosis
Mediatstinal is a medical term meaning related to the mediastinum. The Mediastinum is the space between the lungs.