An eczematous reaction with erythema, edema, and vesiculation that extends beyond the vermilion border onto the surrounding skin, caused by an allergen.
Presents as acute, well-demarcated, non-pitting swelling of the deep tissues of the lip, often without significant redness or itching.
Can present as swollen, erythematous, atrophic plaques with adherent scale on the lips.
Persistent, firm, non-tender, diffuse swelling of one or both lips, which is the key feature of Melkersson-Rosenthal syndrome.
A benign tumor of blood vessels that can present as a soft, red or purplish mass causing swelling of the lip.
A rare neurologic disorder with a classic triad of recurrent facial paralysis, a fissured tongue, and persistent granulomatous lip swelling.
