Multimodality Imaging Findings of a Renal Aspergilloma

Abstract

Background: Renal aspergillosis is a rare infection that usually occurs in persons with a predisposition for this condition. Its differential diagnosis includes primary and metastatic renal malignancies, pyelonephritis and secondary abscess formation, granulomatous disorders, and renal infarction. We aim to stress the role of multimodality imaging and percutaneous biopsy in the diagnosis of this condition. Case Report: We present diffusion weighted imaging (DWI) and positron emission tomography-computed tomography (PET-CT) findings in addition to conventional imaging modalities in a 55-year-old man with secondary renal aspergilloma. Conclusion: Radiological imaging methods are an integral part of diagnostic workup for renal aspergillosis. A definitive diagnosis is made by histopathological and/or microbiological examination of the material obtained via percutaneous biopsy under guidance of imaging methods.

Keywords

• Renal aspergilloma, US, CT, MRI, PET/CT, biopsy

Kaynakça

1. 1. Poll LW, Koch J, Medve M, May P, Sarbia M, Engelbrecht V, et al. CT appearance of a renal aspergilloma in a patient with the acquired immunodeficiency syndrome. Urol Int 1999;62:110-3. [CrossRef]
2. 2. Heussel CP, Kauczor HU, Heussel G, Thelen M, Jahn B. Multiple renal aspergillus abscesses in an AIDS patient: contrast-enhanced helical CT and MRI findings. Eur Radiol 1999;9:616-9. [CrossRef]
3. 3. Fiteni I, Crusells MJ, Cuesta J, Letona S. Renal invasive aspergilloma: unusual infection in AIDS. J Infect 1996;33:61-3. [CrossRef]
4. 4. Halpern M, Szabo S, Hochberg E, Hammer GS, Lin J, Gurtman AC, et al. Renal aspergilloma: an unusual cause of infection in a patient with the acquired immunodeficiency syndrome. Am J Med 1992;92:437-40. [CrossRef]
5. 5. Wetterauer C, Rieken M, Müller G, Bachmann A, Bonkat G. Renal aspergilloma: retroperitoneoscopic resection as a minimally invasive organ preservation treatment option. Urologe A 2014;53:545-7. [CrossRef]
6. 6. Meng XC, Jiang T, Yi SH, Xie PY, Guo YF, Quan L, et al. Renal aspergillosis after liver transplantation: clinical and imaging manifestations in two cases. World J Gastroenterol 2014;20:18495-502. [CrossRef]
7. 7. Xu XX, Li B, Yang HF, Du Y, Li Y, Wang WX, et al. Can diffusion-weighted imaging be used to differentiate brain abscess from other ring-enhancing brain lesions? A meta-analysis. Clin Radiol 2014;69:909-15. [CrossRef]
8. 8. Rathod SB, Kumbhar SS, Nanivadekar A, Aman K. Role of diffusion-weighted MRI in acute pyelonephritis: a prospective study. Acta Radiol 2015;56:244-9. [CrossRef]