What is the difference between seroma versus hygroma?

Seroma

* Collection of serous fluid (plasma)

* Occurs after surgery or trauma

* Common in areas with loose connective tissue, such as the breast and abdomen

* Typically resolves spontaneously within a few weeks

Hygroma

* Collection of lymphatic fluid

* Occurs due to malformation or obstruction of lymphatic vessels

* Commonly occurs in the neck, axilla, and groin

* May require treatment, such as surgery or sclerotherapy