case_images: PMC2765729_01
case_images: (a) Abdominal CT showing a huge tumor as a low-density mass occupying much of the left side of the abdominal cavity. (b) Sagittal T2-weighted MR image showing a mosaic-patterned high-intensity mass, with an enclosed low-intensity septum.
case_images: DTE2009-673194.001.jpg
case_images: PMC2765729_01_DTE2009-673194.001.jpg
case_images: fig1
case_images: Esophago-gastro-duodenoscopy (EGD) showed a subepithelial mass on the upper gastric corpus; an abdominal CT showed a huge tumor as a low-density mass occupying most of the left side of the abdominal cavity (Figure 1(a)). Abdominal MRI displayed the tumor as a high-intensity image on the T1 and as a mosaic-patterned high-intensity image on T2 images, showing a septum within it (Figure 1(b)).
case_images: A mass was identified as hypoechoic with some partial hyperechoic lesions suggesting hemorrhage within the tumor on EUS. EUS-FNA was performed using the transgastric approach.
case_images: DTE2009-673194.002.jpg
case_images: PMC2765729_01_DTE2009-673194.002.jpg
case_images: fig2
case_images: Results of EUS showed a hypoechoic area with some partial hyperechoic lesions, suggesting hemorrhage within the tumor (Figure 2).
case_images: Histopathological examination revealed a few signet-ring-cell-like lipoblasts and several pleomorphic cells manifested in a myxoid background (Giemsa stain, x60).
case_images: DTE2009-673194.003.jpg
case_images: PMC2765729_01_DTE2009-673194.003.jpg
case_images: fig3
case_images: Cytopathological examination of the sample obtained by EUS-FNA revealed spindle cells as well as myxoid and round cells (Figure 3).
case_images: PMC2765729_02
case_images: (a) CT showing a 6 cm diameter low-density tumor within the pelvis. (b) Axial T2-weighted MR image showing a very-high-intensity mass with a low-intensity septum (arrows).
case_images: DTE2009-673194.004.jpg
case_images: PMC2765729_02_DTE2009-673194.004.jpg
case_images: fig4
case_images: Results of CT showed a 6 cm diameter low-density tumor within the pelvis (Figure 4(a)). Abdominal MRI showed a tumor detected as high-intensity on both T1 and T2 images with a low-intensity septum (Figure 4(b)).
case_images: EUS showed that the internal echo was homogeneously hyperechoic and the hypoechoic septum (arrows) was also apparent. Subsequently EUS-FNA was performed using a transrectal approach.
case_images: DTE2009-673194.005.jpg
case_images: PMC2765729_02_DTE2009-673194.005.jpg
case_images: fig5
case_images: Subsequent EUS showed that the internal echo was homogeneously hyperechoic and the hypoechoic septum was also apparent (Figure 5).
case_images: Histopathological examination revealed lipoblasts of various sizes and spindle cells with slightly atypical nucleus manifested against a myxoid background (Giemsa stain, x60).
case_images: DTE2009-673194.006.jpg
case_images: PMC2765729_02_DTE2009-673194.006.jpg
case_images: fig6
case_images: In addition, some spindle cell clusters manifested a myxoid background (Figure 6).