case_images: PMC9935885_01
case_images: Contrast-enhanced abdominal computed tomography (CT) showed a large well-circumscribed mass in the lateral segment of the left hepatic lobe with early arterial phase enhancement.
case_images: CRIPA2023-2271690.001.jpg
case_images: PMC9935885_01_CRIPA2023-2271690.001.jpg
case_images: fig1
case_images: The enhancement became more pronounced in the areas surrounding necrotic changes during the portal phase (Figure 1) and eventually progressed to delayed venous phase washout.
case_images: The surgical specimen showed a well-circumscribe solid mass (14.6 x 13.0 x 10.0 cm) with central necrosis.
case_images: CRIPA2023-2271690.002.jpg
case_images: PMC9935885_01_CRIPA2023-2271690.002.jpg
case_images: fig2
case_images: The surgical specimen showed a well-circumscribed yellowish-white solid mass (14.6 x 13.0 x 10.0 cm) with central necrosis (Figure 2).
case_images: (a, b) The tumor was composed of haphazardly arranged spindle to ovoid cells with indistinct, pale cytoplasm, dense hyalinized collagenous stroma, frequent mitoses, necrosis, and characteristic staghorn-shaped blood vessels ((a) (40x) and (b) (400x)).
case_images: CRIPA2023-2271690.003.jpg
case_images: PMC9935885_01_CRIPA2023-2271690.003.jpg
case_images: fig3
case_images: Geographic necrosis, high cellularity, and frequent mitoses (more than four mitoses per 10 high power fields) are also noted (Figures 3(a) and 3(b)).
case_images: (a, b) The tumor cells showed strong and diffuse expression of CD34 ((a) 100x) and STAT6 ((b) 100x).
case_images: CRIPA2023-2271690.004.jpg
case_images: PMC9935885_01_CRIPA2023-2271690.004.jpg
case_images: fig4
case_images: The tumor cells showed strong and diffuse expression of CD34 (Figure 4(a)) and STAT6 (Figure 4(b)), confirming the diagnosis of malignant solitary fibrous tumor (SFT).