case_images: PMC10644715_01
case_images: Abdominal CT scan revealed a well-defined mass in the right psoas muscle.
case_images: fmed-10-1291945-g001.jpg
case_images: PMC10644715_01_fmed-10-1291945-g001.jpg
case_images: fig1
case_images: An abdominal CT scan revealed a well-defined mass measuring 3.9*2.9 cm, located anterior to the right psoas muscle at the level of the external iliac vessels (Figure 1).
case_images: Gross examination showed a gray-white nodular mass with a firm and scar-like consistency.
case_images: fmed-10-1291945-g002.jpg
case_images: PMC10644715_01_fmed-10-1291945-g002.jpg
case_images: fig2
case_images: Gross examination of the resected specimen revealed a grey-white nodular mass measuring approximately 4*3*5 cm, characterized by a firm and scar-like consistency (Figure 2).
case_images: The cells were spindle-shaped, with abundant cytoplasm, and interspersed with collagen matrix (hematoxylin and eosin; magnification x40).
case_images: fmed-10-1291945-g003.jpg
case_images: PMC10644715_01_fmed-10-1291945-g003.jpg
case_images: fig3
case_images: The spindle-shaped cells exhibited abundant cytoplasm, elongated nuclei with wavy features, interspersed with collagen fibers, and minimal infiltration of inflammatory cells (Figures 3, 4).
case_images: Spindle cells with interspersed collagen fibers(hematoxylin and eosin; magnification x400).
case_images: fmed-10-1291945-g004.jpg
case_images: PMC10644715_01_fmed-10-1291945-g004.jpg
case_images: fig4
case_images: The spindle-shaped cells exhibited abundant cytoplasm, elongated nuclei with wavy features, interspersed with collagen fibers, and minimal infiltration of inflammatory cells (Figures 3, 4).
case_images: Immunohistochemical analysis demonstrated diffuse nuclear expression of beta-catenin.
case_images: fmed-10-1291945-g005.jpg
case_images: PMC10644715_01_fmed-10-1291945-g005.jpg
case_images: fig5
case_images: Immunohistochemical analysis demonstrated diffuse nuclear expression of beta-catenin (Figure 5), along with nuclear positivity for vimentin (Vim), smooth muscle actin (SMA), and desmin (Des).