Sumi Y, Ozaki Y, Shindoh N, Katayama H
Department of Radiology, Juntendo University Urayasu Hospital, Chiba, Japan.
Radiat Med. 1999 Nov-Dec;17(6):427-30.
Placental site trophoblastic tumor (PSTT) is the least common form of gestational trophoblastic disease, with only about 100 cases having been reported. Although the imaging findings of PSTT have seldom been reported, previous findings of the tumor indicate that it can be divided into two types, a hypervascular type and a relatively hypovascular type. We reported the imaging findings of these two representative types of PSTT. In the hypervascular type, massive bleeding following dilatation and curettage have been reported. When prominent vascularity of the tumor is indicated by imaging findings, dilatation and curettage should be avoided. On the other hand, uterine conservative surgery may be possible in patients with the localized hypovascular type. The main role of imaging diagnosis of PSTT is to clarify the vascularity of the tumor.
胎盘部位滋养细胞肿瘤（PSTT）是妊娠滋养细胞疾病中最不常见的类型，仅报道过约100例病例。尽管PSTT的影像学表现很少被报道，但先前对该肿瘤的研究表明，它可分为两种类型，即高血管型和相对低血管型。我们报告了这两种具有代表性的PSTT的影像学表现。在高血管型中，有报道称刮宫后会出现大量出血。当影像学表现提示肿瘤血管丰富时，应避免刮宫。另一方面，局限性低血管型患者可能可行子宫保守手术。PSTT影像学诊断的主要作用是明确肿瘤的血管情况。
