Wilms' tumor CT: Difference between revisions
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==CT scan== | ==CT scan== | ||
* Abdominal CT scan may be helpful in the diagnosis of wilms tumor. | * Abdominal CT scan may be helpful in the diagnosis of wilms tumor. | ||
* Findings on CT scan suggestive of | * Findings on CT scan which can be suggestive of wilms tumor include: | ||
** Heterogeneous soft-tissue density masses | ** Heterogeneous soft-tissue density masses | ||
**These masses have frequent areas of calcification (~10%) and fat-density regions | **These masses have frequent areas of calcification (~10%) and fat-density regions | ||
**Lymph node metastasis | **Lymph node metastasis | ||
*CT scan of the renal mass can further reveal: | |||
**Invasion of surrounding organs | |||
**Thrombus in or occlusion of the renal vein and/or the inferior vena cava | |||
**Abdominal lymph nodes and contralateral involvement | |||
*CT is better than ultrasonography in detecting small lesions of tumor. | *CT is better than ultrasonography in detecting small lesions of tumor. | ||
* | * | ||
* Enhancement is also patchy, and allows for better delineation of the relationship between the mass and kidney. | * Enhancement is also patchy, and allows for better delineation of the relationship between the mass and kidney. | ||
* 20% of cases have lung metastases at time of diagnosis.<ref name="radio">Wilms tumour. Dr Tim Luijkx and Dr Frank Gaillard et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/wilms-tumour </ref> | * 20% of cases have lung metastases at time of diagnosis.<ref name="radio">Wilms tumour. Dr Tim Luijkx and Dr Frank Gaillard et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/wilms-tumour </ref> | ||
Revision as of 13:26, 6 June 2018
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Overview
CT scan may be helpful in the diagnosis of wilms' tumor.
CT scan
- Abdominal CT scan may be helpful in the diagnosis of wilms tumor.
- Findings on CT scan which can be suggestive of wilms tumor include:
- Heterogeneous soft-tissue density masses
- These masses have frequent areas of calcification (~10%) and fat-density regions
- Lymph node metastasis
- CT scan of the renal mass can further reveal:
- Invasion of surrounding organs
- Thrombus in or occlusion of the renal vein and/or the inferior vena cava
- Abdominal lymph nodes and contralateral involvement
- CT is better than ultrasonography in detecting small lesions of tumor.
- Enhancement is also patchy, and allows for better delineation of the relationship between the mass and kidney.
- 20% of cases have lung metastases at time of diagnosis.[1]
- CT scan shows a renal mass which often shows one or more of the following:
- areas of hemorrhage
- invasion of surrounding organs
- thrombus in or occlusion of the renal vein and/or the inferior vena cava
- abdominal lymph nodes and contralateral involvement
- A preoperative CT scan helps to better estimate tumor size and volume and to plan surgical management more successfully.
- It is a useful tool to determine stage based on tumor size and structures involved.[2][3]
References
- ↑ Wilms tumour. Dr Tim Luijkx and Dr Frank Gaillard et al. Radiopaedia.org 2015.http://radiopaedia.org/articles/wilms-tumour
- ↑ Pshak TJ, Cho DS, Hayes KL, Vemulakonda VM. Correlation between CT-estimated tumor volume, pathologic tumor volume, and final pathologic specimen weight in children with Wilms' tumor. J Pediatr Urol. 2014 Feb;10(1):148-54. doi: 10.1016/j.jpurol.2013.08.001. Epub 2013 Sep 12.
- ↑ McDonald K, Duffy P, Chowdhury T, McHugh K. Added value of abdominal cross-sectional imaging (CT or MRI) in staging of Wilms' tumours. Clin Radiol. 2013 Jan;68(1):16-20. doi: 10.1016/j.crad.2012.05.006. Epub 2012 Aug 11.