case_images: PMC10134116_01
case_images: Intralesional excision biopsy (a) at 20 times magnification demonstrated large, eosinophilic, spindle cells in a collagenous background with lymphocytic infiltrate and some multinucleated cells. Fibular (b) and left great toe (c) intralesional biopsies demonstrating similar histology to primary EHE. Needle biopsy (d) of the lesion at 20 times magnification revealed a cord of large, elongated, eosinophilic cells forming blood vessels in a background of myxoid stroma. Intracytoplasmic lumina are present.
case_images: 10.1177_20363613231172611-fig1.jpg
case_images: PMC10134116_02_10.1177_20363613231172611-fig1.jpg
case_images: fig1-20363613231172611
case_images: Needle biopsy of the lesion revealed tissue with cords of large, elongated plump cells forming vessels in a background of extracellular myxoid stroma (Figure 1(d)).
case_images: Harris view (a) and lateral (b) radiographs of the left calcaneus 1 month postoperatively demonstrating the calcaneal lesion status post curettage and placement of methymethacrylate cement.
case_images: 10.1177_20363613231172611-fig2.jpg
case_images: PMC10134116_01_10.1177_20363613231172611-fig2.jpg
case_images: fig2-20363613231172611
case_images: Postoperative images 1 month following the procedure demonstrated the left os calcis lesion packed with radiopaque cement (Figure 2).
case_images: PMC10134116_02
case_images: Intralesional excision biopsy (a) at 20 times magnification demonstrated large, eosinophilic, spindle cells in a collagenous background with lymphocytic infiltrate and some multinucleated cells. Fibular (b) and left great toe (c) intralesional biopsies demonstrating similar histology to primary EHE. Needle biopsy (d) of the lesion at 20 times magnification revealed a cord of large, elongated, eosinophilic cells forming blood vessels in a background of myxoid stroma. Intracytoplasmic lumina are present.
case_images: 10.1177_20363613231172611-fig1.jpg
case_images: PMC10134116_02_10.1177_20363613231172611-fig1.jpg
case_images: fig1-20363613231172611
case_images: Needle biopsy of the lesion revealed tissue with cords of large, elongated plump cells forming vessels in a background of extracellular myxoid stroma (Figure 1(d)).
case_images: Anteroposterior (3a) and lateral (3b) radiographs of the left tibia and fibula demonstrating a mildly expansile meta-epiphyseal lytic lesion involving both the distal tibia and fibula. Axial (3c) and sagittal (3d) T2 magnetic resonance images of the left ankle demonstrating T2 hyperintense, heterogeneous, and expansile lesions in the distal tibia and fibula.
case_images: 10.1177_20363613231172611-fig3.jpg
case_images: PMC10134116_02_10.1177_20363613231172611-fig3.jpg
case_images: fig3-20363613231172611
case_images: Plain radiographs of the left ankle revealed an expansive meta-epiphyseal lesion involving both the distal tibia and fibula (Figure 3(a, b)). Magnetic resonance imaging (MRI) demonstrated T2 hyperintense, heterogeneous, and expansile lesions of the distal tibia and distal fibula (Figure 3(c, d)).