case_images: PMC4421102_01
case_images: MR images of the lesion. (a, b) Axial, T1-weighted images with gadolinium enhancement and fat saturation. (c) Sagittal, T2-weighted image. The lesion (asterisk) has low signal on T1W images and high signal on T2W image. There is minimal contrast enhancement. The lesion causes anterior displacement of the uterus (arrows (a, c)). On (b), the downward extension of the lesion into the ischiorectal fossa is evident.
case_images: CRIONM2015-292304.001.jpg
case_images: PMC4421102_01_CRIONM2015-292304.001.jpg
case_images: fig1
case_images: Moreover, ultrasonography of the perineum showed a large mass with peripheral vascularity, heterogenous hyperechoic areas, measuring approximately 26 x 21 x 6 cm, and magnetic resonance (MRI) of the pelvis confirmed these features (Figures 1(a), 1(b), and 1(c)).
case_images: Spindle and stellate-shaped cells embedded in a myxoid matrix. Presence of variable-sized thin-walled capillaries and thick-walled vascular channels (H-E x100).
case_images: CRIONM2015-292304.002.jpg
case_images: PMC4421102_01_CRIONM2015-292304.002.jpg
case_images: fig2
case_images: Neoplastic cells had relatively scant eosinophilic cytoplasm and their nuclei were ovoid, containing finely dispersed chromatin with one or two small eosinophilic nucleoli (Figure 2).
case_images: Tumor cells positive for desmin (desmin x200).
case_images: CRIONM2015-292304.003.jpg
case_images: PMC4421102_01_CRIONM2015-292304.003.jpg
case_images: fig3
case_images: Immunohistochemically, the tumour cells were positive for vimentin, actin, desmin, and progesterone but negative for S100 protein, CEA, CKAE1/AE3, factor VIII (Figures 3 and 4).
case_images: Tumor cells positive for vimentin (vimentin x200).
case_images: CRIONM2015-292304.004.jpg
case_images: PMC4421102_01_CRIONM2015-292304.004.jpg
case_images: fig4
case_images: Immunohistochemically, the tumour cells were positive for vimentin, actin, desmin, and progesterone but negative for S100 protein, CEA, CKAE1/AE3, factor VIII (Figures 3 and 4).