PMC7586051_01
Plain radiographic and plain computed tomography images of the tumor.. A plain radiograph shows the tumor with calcification in the left proximal thigh (a). Computed tomography reveals an intramuscular low-density area representing the tumor with surrounding calcification in the medial compartment of the proximal thigh (b). Arrows indicate the location of the tumor.
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Plain radiographs demonstrated a soft tissue mass with calcification without endosteal scalloping (Fig. 1a). Computed tomography (CT) revealed a low-density intramuscular tumor with surrounding calcification in the medial compartment of the left proximal thigh (Fig. 1b).
Plain magnetic resonance imaging of the tumor.. Magnetic resonance imaging (MRI) shows a well-circumscribed lesion without a reactive zone around the tumor. The tumor is located near the femur, but no invasion was detected. Coronal view MRI: T1-weighted image (a), T2-weighted image (b). Axial view MRI: T1-weighted image (c), T2-weighted image (d).
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T2 signal intensity without invasion of the femur. The tumor was well-circumscribed, with no peritumoral enhancement. The tumor was 85 mm in length, 75 mm in width, and 75 mm in thickness (Fig. 2a-d).
Plain radiographs and computed tomography after surgery.. Plain radiographs of the left femur just after the initial surgery in 1993 (a), 17 years later in 2010 (c), and 26 years after surgery in 2019 (d). A comparison of image C with image D demonstrates the slight migration of the staples into the pelvic cavity over time. Computed tomography of the left femur (b) shows the migration of the staples into the pelvic cavity and perforation of the bladder wall.
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Warsaw, IN), which was cemented with the normal distal femur. We reconstructed the soft tissue around the left hip joint and used staples to fix the Leeds-Keio artificial ligament to the pubis (Fig. 3a). A subsequent plain CT scan revealed that the staples in the pubic region were no longer inserted into the pubis and had perforated into the bladder wall (Fig. 3b). A comparison of the plain radiographs over time revealed that the staples had migrated slightly into the pelvic cavity (Fig. 3c and d).
Intraoperative findings from the second surgery.. Cystoscopy shows perforation of the bladder by staples covered with artificial ligaments (a). The staples were located deeper than the suprapubic branch and were not fixed to the pubis (b). Two staples were removed (c). There were no implant failures.
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The patient underwent cystoscopy and was diagnosed by the urologist with staple perforation of the bladder (Fig. 4a). Intraoperative findings indicated that the staples were located deeper than the suprapubic branch and were not fixed to the pubis (Fig. 4b and c).