Klippel–Trenaunay Syndrome: An Unusual Presentation of a Rare Limb Overgrowth Syndrome

Abstract Klippel–Trenaunay syndrome (KTS) is a rare congenital limb overgrowth disorder characterised by a triad of capillary malformations, venous abnormalities and soft tissue/bone hypertrophy. This case report presents an atypical manifestation of KTS in a 22-year-old male with right calf pain and hyperpigmented skin thickening, deviating from the classical port-wine stain presentation. Clinical examination and imaging confirmed the presence of venous malformations and limb asymmetry. Management included conservative interventions such as heel modifications and compression stockings, which significantly reduced symptoms. This case highlights the importance of a multidisciplinary approach in diagnosing and managing KTS, emphasising conservative measures before surgical options.