Delayed presentation of gluteal compartment syndrome presenting with peroneal palsy secondary to superior gluteal artery pseudoaneurysm following ballistic injury.

Gluteal compartment syndrome (CS) secondary to the superior gluteal artery (SGA) injury and pseudoaneurysm formation is a very rare condition. When it does occur, it usually manifests with acute and life-threatening hemorrhage resulting in early hypov-olemic changes. Delayed presentation of the gluteal CS (GCS) after trauma has been described in the literature seldom and these cases were demonstrated with sciatic nerve palsy, hemodynamic instability, decreased hemoglobin levels, increasing buttock pain, and a large gluteal hematoma. In this report, we present a case of GCS presenting with the palsy of the peroneal division of the sciatic nerve secondary to SGA pseudoaneurysm following ballistic injury, with a delay of nearly 20 days in diagnosis and treatment with normal hemodynamic findings. The patient required emergent angiographic embolization and then fasciotomy which were approx-imately 13 days after the onset of the symptoms. The patient made a positive recovery with no further neurologic deterioration and none local wound or systemic complications. This case emphasizes the importance of early diagnosis and treatment of this rare condition.