Question

Abnormal collection of fluid within a definite sac is known as

Answer 1

"Crystal 1. A closed sac or pouch with a definite wall, containing fluid,
semifluid,or solid material. it is usually an abnormal structure resulting from development anomalies , obstruction of ducts , or parasitic infection."

Answer 2

Answer:

Cyst

Explanation:

it is filled with liquid or semi solid substance