Retroperitoneal venous malformation

Kakuta, Keiichi; Endo, Kotaro; Ogata, Shūji; Shimizu, Hirofumi; Yamashita, Masaru; Oka, Yuka; Tanaka, Hideaki

doi:10.1016/j.epsc.2018.01.018

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2024

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“…Primary retroperitoneal venous malformations are extremely rare 13. While being a distinct entity from a paraganglioma, it was not possible to establish this diagnosis preoperatively despite the imaging features of paragangliomas being well established.…”

Section: Discussionmentioning

confidence: 99%

Retroperitoneal venous malformation mimics paraganglioma on triple imaging modalities

Ng Hung Shin,

Lombardo,

Black

2024

BMJ Case Rep

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Here, we report a case of a woman in her 50s who was referred for an incidentally discovered lesion anterior to the origin of inferior vena cava suspicious for a paraganglioma following a CT scan for vaginal bleeding. A follow-up68Ga-DOTATATE PET-CT and MRI of the abdomen reinforced the radiological impression of an extra-adrenal paraganglioma (EAP). The EAP was deemed non-functional given normal urine biogenic amine, supine plasma fractionated metanephrines and chromogranin A levels. The mass was resected laparoscopically without perioperative blockade. Histological examination revealed a venous malformation. Extrahepatic abdominal venous malformations are rare and can be indistinguishable from an EAP on imaging preoperatively. Although benign, the lesion nevertheless warrants excision as it is associated with a risk of haemorrhage.

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Section: Discussionmentioning

confidence: 99%