case_images: PMC3792540_01
case_images: Clinical photograph.
case_images: CRIM.ORTHOPEDICS2013-181862.001.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.001.jpg
case_images: fig1
case_images: On physical examination, there were fullness on the medial aspect of left knee and palpable nodular mass of approximately 6 x 4 cm over the infrapatellar region medial to the patellar tendon (Figure 1).
case_images: Preoperative X-ray.
case_images: CRIM.ORTHOPEDICS2013-181862.002.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.002.jpg
case_images: fig2
case_images: The femoral condyles and tibial plateau were normal (Figures 2(a) and 2(b)).
case_images: MRI of left knee.
case_images: CRIM.ORTHOPEDICS2013-181862.003.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.003.jpg
case_images: fig3
case_images: MRI was performed. MRI revealed a large mineralized mass lying in the Hoffa body with no attachment to the skeletal tissue (Figure 3).
case_images: Intraoperative findings. (a) Tumour medial to the patellar tendon and (b) tumour impaling medial femoral condyle.
case_images: CRIM.ORTHOPEDICS2013-181862.004.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.004.jpg
case_images: fig4
case_images: The mass was lying medially and behind the patellar tendon in Hoffa's fat pushing the tendon laterally (Figure 4(a)) and impinging on medial femoral condyle and intercondylar notch (Figure 4(b)).
case_images: Excised mass in toto.
case_images: CRIM.ORTHOPEDICS2013-181862.005.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.005.jpg
case_images: fig5
case_images: It was dissected and excised in toto (Figures 5(a) and 5(b)).
case_images: Histopathology: This figure shows bone marrow, bone and cartilage with fibrofatty tissue at the periphery.
case_images: CRIM.ORTHOPEDICS2013-181862.006.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.006.jpg
case_images: fig6
case_images: Fibrofatty tissue was seen at the periphery (Figure 6).
case_images: Two-year followup. (a) Clinical photograph and (b) radiology showing no recurrence.
case_images: CRIM.ORTHOPEDICS2013-181862.007.jpg
case_images: PMC3792540_01_CRIM.ORTHOPEDICS2013-181862.007.jpg
case_images: fig7
case_images: When last reviewed 24 months after excision, she was asymptomatic with no clinical and radiographic signs of recurrence of the lesion (Figures 7(a), 7(b)(1), and 7(b)(2)).