Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2018 Jul-Sep;26(3):119-122.
doi: 10.4103/JMU.JMU_48_18. Epub 2018 Sep 14.

Benign Neoplasm of Kidney: Angiomyolipoma

Shih-Feng Wang  1   2 , Wah-On Lo  1
Affiliations

Benign Neoplasm of Kidney: Angiomyolipoma

Shih-Feng Wang et al. J Med Ultrasound. 2018 Jul-Sep.

Abstract

Angiomyolipoma is one of the renal benign neoplasms. The most of the angiomyolipomas are asymptomatic and found incidentally with ultrasound. They are more prevalent in patients with tuberous sclerosis. It is very important to make differential diagnosis from other renal neoplasm such as renal cell carcinoma. Growth rate is higher among pregnant women suggest that the hormones may play a role in the stimulation of angiomyolipoma. The most common serious presentation is rupture and hemorrhage, and sometimes it can lead to shock. Adequate diagnosis, treatment, and follow-up are very important in the face of renal angiomyolipoma.

Keywords: Angiomyolipoma; benign; kidney.

PubMed Disclaimer

Conflict of interest statement

There are no conflicts of interest.

Figures

Figure 1
Figure 1
Kidney ultrasound. Ultrasound reveals a homogeneous, well-defined, hyperechoic lesion in the left lower kidney, which demonstrates the presence of macroscopic fat. Renal angiomyolipoma is the most likely diagnosis
Figure 2
Figure 2
Image studies of a renal mass. (a) A hyperechoic left renal tumor (arrow) in a 61-year-old man. (b) Abdominal computed tomography scan without contrast revealed a hyperdensity renal mass. (c) The tumor was not enhanced on computed tomography scan. (d) Coronal view of the abdominal computed tomography demonstrated the renal mass. (e) Robotic-assisted laparoscopic partial nephrectomy was performed, and the pathology is papillary renal cell carcinoma
Figure 3
Figure 3
Lipid-poor angiomyolipoma (Epithelioid angiomyolipoma) in a 55-year-old woman. (a) An isoechoic right renal mass. (Arrow). (b) Abdominal computed tomography revealed a hyperdensity right renal mass. No obvious fat component was found within the tumor. (c) The mass was enhanced after contrast injection. (d) Coronal view of the abdominal computed tomography (late arterial phase) showed the hypervascularity of the tumor
See this image and copyright information in PMC

References

    1. Jinzaki M, Silverman SG, Akita H, Nagashima Y, Mikami S, Oya M, et al. Renal angiomyolipoma: A radiological classification and update on recent developments in diagnosis and management. Abdom Imaging. 2014;39:588–604. - PMC - PubMed
    1. Fujii Y, Ajima J, Oka K, Tosaka A, Takehara Y. Benign renal tumors detected among healthy adults by abdominal ultrasonography. Eur Urol. 1995;27:124–7. - PubMed
    1. Fittschen A, Wendlik I, Oeztuerk S, Kratzer W, Akinli AS, Haenle MM, et al. Prevalence of sporadic renal angiomyolipoma: A retrospective analysis of 61,389 in- and out-patients. Abdom Imaging. 2014;39:1009–13. - PubMed
    1. Sooriakumaran P, Gibbs P, Coughlin G, Attard V, Elmslie F, Kingswood C, et al. Angiomyolipomata: Challenges, solutions, and future prospects based on over 100 cases treated. BJU Int. 2010;105:101–6. - PubMed
    1. Seyam RM, Bissada NK, Kattan SA, Mokhtar AA, Aslam M, Fahmy WE, et al. Changing trends in presentation, diagnosis and management of renal angiomyolipoma: Comparison of sporadic and tuberous sclerosis complex-associated forms. Urology. 2008;72:1077–82. - PubMed