What kind of oedema is characterized by a lack of temperature change?

The type of oedema characterized by a lack of temperature change is commonly associated with angioneurotic oedema. This condition, also known as angioedema, involves swelling that often occurs beneath the skin, particularly around the eyes and lips, or deeper in the throat, and it is usually not accompanied by the heat or redness associated with inflammation.

In angioneurotic oedema, the swelling arises from an underlying reaction involving blood vessels rather than from typical inflammatory processes. Since it is not inflammatory in nature, the usual symptoms—such as increased temperature, redness, and tenderness—are absent, leading to the key characteristic of no temperature change in the affected areas.

The other types of oedema involve inflammatory processes (such as acute inflammatory oedema), allergic reactions (in the case of allergic oedema), or prolonged swelling (in chronic oedema), which can often present with symptoms like localized warmth or redness. These features help differentiate them from angioneurotic oedema.