Table 1 Rectus sheath hematoma classification based on computed tomography.
Type I | The hematoma is intramuscular and an increase in muscle size is observed, with an ovoid or fusiform aspect and hyperdense foci or diffusely increased density. The hematoma is unilateral and does not dissect along adjacent fascial planes |
Type II | The hematoma is intramuscular (mimicking type I), but with blood between the muscle and the transversalis fascia. It may be uni- or bilateral, and no blood is seen occupying the prevesical space |
Type III | The hematoma may or may not involve the muscle, and blood is seen between the transversalis fascia and the muscle, in the peritoneum, and in the prevesical space |