case_images: PMC11719446_01
case_images: Preoperative X-ray demonstrating prior lumbar fusion.
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case_images: February 2008 (Figure 1). Following surgery, the patient developed a hematoma under the surgical incision.
case_images: Axial and sagittal MRI demonstrating large paraspinal mass.. MRI: magnetic resonance imaging.
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case_images: The patient was then seen a month later after completion of her lumbar spine MRI (Figure 2). The MRI also demonstrated a significant mass in the lumbar spine appearing superficial to the thoracolumbar fascia (Figure 2).
case_images: Immediate postoperative X-ray after revision posterior decompression and spinal fusion.
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case_images: The excised mass was then sent to pathology for evaluation which classified the mass as a chronic calcified hematoma, measuring 14 x 7 x 6.3 cm and weighing 299 g which was a 51% increase in size from the previous hematoma (Figure 3).
case_images: Intraoperative photographs of paraspinal calcified hematoma upon resection.
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case_images: Postoperative imaging following the revision procedure are seen in Figure 4.