case_images: PMC6556241_01
case_images: Left hand radiographs with illustrative zoom.
case_images: CRIOR2019-4542862.001.jpg
case_images: PMC6556241_01_CRIOR2019-4542862.001.jpg
case_images: fig1
case_images: Nuclear magnetic resonance imaging (NMRI). (a) Axial fat-suppressed T2-weighted NMRI. (b, c) Respectively, axial and coronal, gadolinium-enhanced T1-weighted NMRI.
case_images: CRIOR2019-4542862.002.jpg
case_images: PMC6556241_01_CRIOR2019-4542862.002.jpg
case_images: fig2
case_images: Figure 2(a) (axial fat-suppressed T2-weighted NMRI) shows a nodular low-signal intensity lesion, surrounded by a high-signal intensity reactive edema. Figures 2(b) and 2(c) (respectively, axial and coronal, gadolinium-enhanced T1-weighted NMRI) bring to light a strong enhancement of the tumor and the medullary bone, in addition of the adjacent soft tissue.
case_images: Operative specimen with its intraoperative radiograph.
case_images: CRIOR2019-4542862.003.jpg
case_images: PMC6556241_01_CRIOR2019-4542862.003.jpg
case_images: fig3
case_images: Then, the specimen was sent for histological examination.  Figure 3 reveals the operative specimen with its intraoperative radiograph.
case_images: Histological examination (magnification factor: (a) x10, (b) x20, (c) x40, (d) x100, and (e) x200). (a) OO separated from the normal bone by connective tissue. (e) Osteoid and woven bone with interconnected trabeculae and a background and rim of highly vascularized connective tissue.
case_images: CRIOR2019-4542862.004.jpg
case_images: PMC6556241_01_CRIOR2019-4542862.004.jpg
case_images: fig4
case_images: It shows, as referred to in Figure 4, a condensation zone constituted of irregular trabecula of the bone, surrounded in periphery by a high vascular connective tissue, equally containing disordered trabecula of the bone.
case_images: Postoperative radiographs.
case_images: CRIOR2019-4542862.005.jpg
case_images: PMC6556241_01_CRIOR2019-4542862.005.jpg
case_images: fig5
case_images: The X-rays have shown total excision and a respected joint space.  Figure 5 points out postoperative radiographs.