An Analysis of Computed Tomography Imaging Features and Predictive Factors for Postoperative Recurrence and Metastasis of Abdominal Paragangliomas

Figure 4

One case of a 67-year-old female with a retroperitoneal neoplasm. (a) Noncontrast CT scan showed an irregular, ill-defined tumour with heterogeneity attenuation and bulky calcification (arrow) was observed. (b, c) Contrast-enhanced scans displayed heterogeneous nonremarkable enhancement. The CT values of the noncontrast, arterial, and venous phases were 43, 79, and 88 HU. The neoplasm extends into the space of the adjacent organs and the left renal artery. (d) Liver multiple metastases occurred 5 years later.