case_images: PMC3350275_01
case_images: Abdominal precontrast CT shows a thick-walled, cystic, multilocular mass, measuring 10 x 10 cm in front of the right psoas and iliopsoas muscles and adjacent to the iliac vessels. Spotty calcification (black arrow) was seen in the thick, hyperdense wall. White arrow shows fluid-fluid levels.
case_images: CRIM.RADIOLOGY2011-362391.001.jpg
case_images: PMC3350275_01_CRIM.RADIOLOGY2011-362391.001.jpg
case_images: fig1
case_images: Spotty calcification was seen in the thick, hyperdense wall on nonenhanced CT (Figure 1).
case_images: On enhanced CT, the wall and septa were not enhanced.
case_images: CRIM.RADIOLOGY2011-362391.002.jpg
case_images: PMC3350275_01_CRIM.RADIOLOGY2011-362391.002.jpg
case_images: fig2
case_images: On enhanced CT the wall and septae were not enhanced (Figure 2).
case_images: The giant cell form of malignant fibrous histiocytoma contains less mature bone in the tumor (H and E x 200).
case_images: CRIM.RADIOLOGY2011-362391.003.jpg
case_images: PMC3350275_01_CRIM.RADIOLOGY2011-362391.003.jpg
case_images: fig3
case_images: There was an aneurismal bone cyst-appearing hemorrhagic area, with focal osteoid and mature bone in the tumor capsule (Figures 3 and 4).
case_images: Immunohistochemical CD68 staining of the malignant fibrous histiocytoma (x400).
case_images: CRIM.RADIOLOGY2011-362391.004.jpg
case_images: PMC3350275_01_CRIM.RADIOLOGY2011-362391.004.jpg
case_images: fig4
case_images: There was an aneurismal bone cyst-appearing hemorrhagic area, with focal osteoid and mature bone in the tumor capsule (Figures 3 and 4).
case_images: Hemorrhagic areas and aneurismal bone cyst-like areas.
case_images: CRIM.RADIOLOGY2011-362391.005.jpg
case_images: PMC3350275_01_CRIM.RADIOLOGY2011-362391.005.jpg
case_images: fig5
case_images: Immunohistochemically, the tumor cells were positive for CD68 and lysozyme and negative for S-100 and SMA (Figure 5).