We report a case of an 11-year-old girl who presented with a slowly enlarging mass in the right posterolateral chest wall. Computed tomography showed a soft-tissue mass 8.5 × 7.5 × 5.5 cm in size, arising from the right posterolateral 9th, 10th, and 11th intercostal spaces. Magnetic resonance imaging confirmed a vascular mass. The patient underwent complete resection of the tumor, together with the right 8th, 9th, 10th, 11th, and 12th ribs and their intercostal muscles. Reconstruction of the chest wall was performed with methyl methacrylate and Marlex mesh. Histopathologic examination of the tumor confirmed an intercostal cavernous hemangioma. At last examination, 6 months after the operation, the child was doing well, with no evidence of recurrence.
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