Incidental retroperitoneal paraganglioma, imaging workup and CT-guided biopsy: A case report

Hofko, Michael; Hergan, Benedikt; Fellner, Franz A.

doi:10.15761/gii.1000201

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…The incidence of extra-adrenal paragangliomas is estimated to be 2–8 per million individuals and has been significantly increasing over the past two decades [ 17 ]. They can occur at any age ranging from 16 to 84 years at the time of diagnosis though they are commonly found in young adults with a median age of 30–43 years and frequently in female patients [ 18 , 19 ]. At least 30% of the patients have been shown to have certain hereditary cancer-predisposing disorders, such as multiple endocrine neoplasia, neurofibromatosis type 1, or von Hippel–Lindau syndrome [ 20 ].…”

Section: Discussionmentioning

confidence: 99%

Spontaneous Retroperitoneal Bleeding as a Complication of Unusual Renal Paraganglioma

Sangey¹,

Rusheke

Sangey

et al. 2022

Case Reports in Nephrology

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Spontaneous retroperitoneal bleeding is a rare occurrence that might have catastrophic implications. We present a 58-year-old male with a 4-day history of progressively worsening left-sided flank pain due to retroperitoneal hemorrhage from a nonfunctional renal paraganglioma. Abdominal contrast CT scan was helpful in locating the tumor, estimating tumor size and extent of bleeding, visualizing the interaction between the tumor and the surroundings, and ruling out any potential metastasis; however, it lacked specificity in identifying the origin of the mass, needing histologic investigation for a conclusive diagnosis. MRI was not available at our center. We report a rare case of spontaneous retroperitoneal bleeding as a complication of an unusual nonfunctional renal paraganglioma, which was initially misdiagnosed as renal cell carcinoma but later confirmed by postoperative histopathology.

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