Unilateral tongue swelling: an unusual presentation of angiotensin-converting enzyme inhibitor-related angioedema.

Angioedema is a rare but potentially fatal complication of angiotensin-converting enzyme inhibitor (ACEi) treatment. This class of drugs is widely used in the treatment of hypertension, cardiac failure and other common conditions.This case report discusses a male patient in his 60s who presented with acute swelling of the right side of his tongue, an unusual manifestation of angioedema, which typically involves bilateral swelling of orofacial structures.Accurate and early identification of this complication affords the opportunity for early, potentially life-saving intervention during the acute episode and also cessation of the treatment, reducing the risk of recurrence in the future.This case is one of only a few reported in English language medical literature and the first from Africa, suggesting either rarity or under-reporting. The case contributes to the understanding of ACEi-induced angioedema, particularly in Africa where hypertension is prevalent and ACEi is commonly used.

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Competing interests: None declared.