Fegeler Syndrome Mimicking Kaposi Sarcoma: A Case Report

Acquired capillary malformation, also known as Fegeler syndrome, is a rare condition in adults, often linked to trauma. This report presents a 49-year-old male with a violaceous nodule on the fourth toe, clinically resembling Kaposi's sarcoma. Dermoscopic examination revealed surface scaling, thick intersecting white lines, and a rainbow pattern. Despite the clinical and dermoscopic similarities to Kaposi's sarcoma, histopathological evaluation confirmed a diagnosis of capillary malformation. The patient had no history of significant trauma or medication use, though minor trauma from foot placement may have contributed. This case emphasizes the importance of considering capillary malformation in the differential diagnosis of nodular vascular lesions on the foot.