Table 1.
The clinical feature of ETT, PSTT and IM/CC.
Figure 1.
Ultrasonographic characteristics of ETT.
(a) On gray-scale image, lesion was located in the left fundus of uterus, showing heterogeneously echogenic cystic-solid mass with distinct border (between cursors). (b) On Color Doppler, the abundant Doppler signals from blood flow distributed at the tumor periphery, while a few signals were showed within the boundary of tumor, which is named as “peripheral Doppler signal”.
Figure 2.
Ultrasonographic characteristics of PSTT.
(a) On gray-scale image, the lesion was located in the anterior wall of uterus, showing the hyperechogenic solid mass with unclear border (between cursors). (b) On Color Doppler, the abundant Doppler signals from blood flow presented within the boundary of tumor rather than at the periphery, which is named as “non-peripheral Doppler signal”.
Figure 3.
Ultrasonographic characteristics of IM.
(a) On gray-scale image, the lesion was located in the uterine fundus, appearing the cystic-solid mass with unclear border (between cursors). (b) On Color Doppler image, the extremely abundant Doppler signals formed by blood flow were distributed throughout the tumor, which is named as “non-peripheral Doppler signal”. The irregular shape of cyst was the secondary arteriovernous shunts, which was fulfilled chaotic signals on color Doppler.
Table 2.
Ultrasonographic characteristics of the uterine lesion in ETT, PSTT and IM/CC.
Figure 4.
(a) H&E staining profile showed an expansile growth pattern with pushing border, and blood vessels proximate to the tumor periphery (yellow arrows). In contrast, extensive necrosis presented within the boundary. (b) Immunohistochemical staining showed strong nuclear p63. Both images with original magnification ×200.
Figure 5.
Histological features of PSTT.
(a) H&E staining profile showed an infiltrating growth pattern with the penetration of tumor cells into the myometrial smooth muscle and blood vessels (yellow arrows) at the tumor periphery. (b) Immunohistochemical staining showed diffusive cytoplasmic CD146. Both images with original magnification ×200.