Angioedema in anaphylaxis typically involves which tissues?

Angioedema in anaphylaxis typically involves which tissues?

• A. Ears
• B. Abdomen and pelvis
• C. Eyelids, lips, tongue, and face
• D. Hands

Answer: (C)

Angioedema in anaphylaxis is swelling of the deeper layers of skin and mucous membranes caused by histamine-driven leakage from blood vessels. This tends to show up most noticeably on the face, particularly around the eyelids, lips, and tongue, as well as other facial tissues. These mucosal areas are highly vascular and prone to rapid swelling, which is why facial angioedema is so characteristic in anaphylaxis and can threaten the airway if it progresses. Ears or hands can swell in some cases, but they’re not the typical distribution, and abdominal swelling isn’t the classic tissue pattern for angioedema. So the tissues most commonly involved are the eyelids, lips, tongue, and face.

Angioedema in anaphylaxis is swelling of the deeper layers of skin and mucous membranes caused by histamine-driven leakage from blood vessels. This tends to show up most noticeably on the face, particularly around the eyelids, lips, and tongue, as well as other facial tissues. These mucosal areas are highly vascular and prone to rapid swelling, which is why facial angioedema is so characteristic in anaphylaxis and can threaten the airway if it progresses. Ears or hands can swell in some cases, but they’re not the typical distribution, and abdominal swelling isn’t the classic tissue pattern for angioedema. So the tissues most commonly involved are the eyelids, lips, tongue, and face.