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==Overview==
==Overview==
[[Computed Tomography]] scan may be diagnostic of thymoma. The tumor is generally located inside the thymus, and can be calcified. Increased vascular enhancement can be indicative of malignancy, as can be pleural deposits.
* [[Computed Tomography]] scan may be diagnostic of thymoma.
* The tumor is generally located inside the thymus, and can be calcified.  
* Increased vascular enhancement can be indicative of malignancy, as can pleural deposits.


==CT Scan==
==CT Scan==
When athymom a is suspected, a [[Computed axial tomography|CT/CAT scan]] is generally performed to estimate the size of the tumor.
When a thymoma is suspected, a [[Computed axial tomography|CT/CAT scan]] is generally performed to estimate the size of the tumor.
Key CT scan findings in thymoma include
Key CT scan findings in thymoma include:
*Smooth or lobulated border that is partially or completely outlined by [[fat]]
*Smooth or lobulated border that is partially or completely outlined by [[fat]]
*Homogeneous soft tissue mass
*Homogeneous soft tissue mass
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{|
{|
| [[File:Th00.png|x200px|thumb|A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, axial.<ref name=radio> Image courtesy of  Dr Hani Al Salam. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/articles/thymic-epithelial-tumours].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th00.png|x200px|thumb|A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, axial.<ref name="radio">Image courtesy of  Dr Hani Al Salam. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/articles/thymic-epithelial-tumours].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th01.png|x200px|thumb|A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, coronal.<ref name=radio> Image courtesy of  Dr Hani Al Salam. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/articles/thymic-epithelial-tumours].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th01.png|x200px|thumb|A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, coronal.<ref name="radio">Image courtesy of  Dr Hani Al Salam. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/articles/thymic-epithelial-tumours].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th04.png|x150px|thumb|CT shows Invasive Thymoma.]]
| [[File:Th04.png|x150px|thumb|CT shows Invasive Thymoma.]]
| [[File:Th05.png|x150px|thumb|CT shows Invasive Thymoma.]]
| [[File:Th06.png|x200px|thumb|CT shows anterior mediastinal mass, pathologically shown to be a thymoma.]]
|}
|}


{|
{|
| [[File:Th06.png|x200px|thumb|CT shows anterior mediastinal mass, pathologically shown to be a thymoma.]]
| [[File:Th07.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name=radio1> Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th08.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name=radio1> Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th09.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name=radio1> Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
|}


{|
| [[File:Th07.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name="radio1">Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th11.png|x200px|thumb|CT showing well defined solid lesion is seen in the anterior mediastinum. No calcification cystic or fat component is seen within.]]
| [[File:Th08.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name="radio1">Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th09.png|x200px|thumb|CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.<ref name="radio1">Image courtesy of  Dr Frank Gaillard. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-8].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
| [[File:Th11.png|x200px|thumb|CT showing well defined solid lesion is seen in the anterior mediastinum. No calcification cystic or fat component is seen within.<ref name="radio12">Image courtesy of    Dr Prashant Mudgal. [http://www.radiopaedia.org Radiopaedia] [http://radiopaedia.org/cases/thymoma-11].[http://radiopaedia.org/licence Creative Commons BY-SA-NC]</ref>]]
|}
|}


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Latest revision as of 19:08, 14 August 2019

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [4] Associate Editor(s)-in-Chief: Amr Marawan, M.D. [5]Ahmad Al Maradni, M.D. [6]

Overview

  • Computed Tomography scan may be diagnostic of thymoma.
  • The tumor is generally located inside the thymus, and can be calcified.
  • Increased vascular enhancement can be indicative of malignancy, as can pleural deposits.

CT Scan

When a thymoma is suspected, a CT/CAT scan is generally performed to estimate the size of the tumor. Key CT scan findings in thymoma include:

CT scan of the chest revealing a large necrotic mass in the left anterior mediastinum (later proven to be a thymoma) and bilateral hilar lymphadenopathy.
CT shows Thymoma (Thymoma, Stage IIA. CT scan, axial).
CT shows Thymoma (Image courtesy of RadsWiki and copylefted).
A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, axial.[1]
A 43-year-old female with myasthenia gravis. Chest CT demonstrate a small soft tissue mass at the anterior mediastinum, pathologically proven thymoma, coronal.[1]
CT shows Invasive Thymoma.
CT shows anterior mediastinal mass, pathologically shown to be a thymoma.
CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.[2]
CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.[2]
CT demonstrates a well circumscribed soft tissue mass in the anterior mediastinum, proven to be thymoma.[2]
CT showing well defined solid lesion is seen in the anterior mediastinum. No calcification cystic or fat component is seen within.[3]

References

  1. ↑ 1.0 1.1 Image courtesy of Dr Hani Al Salam. Radiopaedia [1].Creative Commons BY-SA-NC
  2. ↑ 2.0 2.1 2.2 Image courtesy of Dr Frank Gaillard. Radiopaedia [2].Creative Commons BY-SA-NC
  3. ↑ Image courtesy of Dr Prashant Mudgal. Radiopaedia [3].Creative Commons BY-SA-NC

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