PMC5954958_01
Photomicrograph (H&E stain; original magnification x10).
CRIPA2018-1082956.001.jpg
PMC5954958_01_CRIPA2018-1082956.001.jpg
fig1
Microscopic sections of the mass revealed a poorly circumscribed growth of spindle cells showing amphophilic cytoplasm and open chromatin with distended nuclear membranes (Figures 1 and 2).
Photomicrograph (H&E stain; original magnification x40).
CRIPA2018-1082956.002.jpg
PMC5954958_01_CRIPA2018-1082956.002.jpg
fig2
Microscopic sections of the mass revealed a poorly circumscribed growth of spindle cells showing amphophilic cytoplasm and open chromatin with distended nuclear membranes (Figures 1 and 2).
Photomicrograph (IHC stain; original magnification x40) of tumor cells showing B-catenin positivity.
CRIPA2018-1082956.003.jpg
PMC5954958_01_CRIPA2018-1082956.003.jpg
fig3
Immunohistochemistry showed that the cells were positive for nuclear B-catenin (Figure 3) and smooth muscle actin (SMA) (Figure 4).
Photomicrograph (IHC stain; original magnification x40) of tumor cells showing SMA positivity.
CRIPA2018-1082956.004.jpg
PMC5954958_01_CRIPA2018-1082956.004.jpg
fig4
Immunohistochemistry showed that the cells were positive for nuclear B-catenin (Figure 3) and smooth muscle actin (SMA) (Figure 4).
Photomicrograph (IHC stain; original magnification x40) of tumor cells negative for C-kit (CD117).
CRIPA2018-1082956.005.jpg
PMC5954958_01_CRIPA2018-1082956.005.jpg
fig5
The cells were negative for C-kit (CD117) (Figure 5) and CD34 (Figure 6).
Photomicrograph (IHC stain; original magnification x40) of tumor cells negative for CD34. Internal control of positivity stained blood vessels is identified.
CRIPA2018-1082956.006.jpg
PMC5954958_01_CRIPA2018-1082956.006.jpg
fig6
The cells were negative for C-kit (CD117) (Figure 5) and CD34 (Figure 6).
Photomicrograph (IHC stain; original magnification x40) of tumor cells showing low Ki-67 index.
CRIPA2018-1082956.007.jpg
PMC5954958_01_CRIPA2018-1082956.007.jpg
fig7
The Ki67 index was less than 5% (Figure 7).
Photomicrograph (H&E stain; original magnification x10) from previously diagnosed GIST.
CRIPA2018-1082956.008.jpg
PMC5954958_01_CRIPA2018-1082956.008.jpg
fig8
The previous H&E (Figure 8) and IHC (Figure 9) slides were reviewed in our hospital for confirmation.
Photomicrograph (IHC stain; original magnification x20) of tumor cells from previously diagnosed GIST positive for C-kit (CD117).
CRIPA2018-1082956.009.jpg
PMC5954958_01_CRIPA2018-1082956.009.jpg
fig9
The previous H&E (Figure 8) and IHC (Figure 9) slides were reviewed in our hospital for confirmation.