Uveal melanoma ultrasound: Difference between revisions
Jump to navigation
Jump to search
Simrat Sarai (talk | contribs) No edit summary |
(Mahshid) |
||
| (2 intermediate revisions by one other user not shown) | |||
| Line 5: | Line 5: | ||
On ultrasound, uveal melanoma is characterized by internal vascularity, collar button shape, and solid low to medium echotexture.<ref name="radio"> Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/primary-uveal-malignant-melanoma Accessed on October 21, 2015</ref> | On ultrasound, uveal melanoma is characterized by internal vascularity, collar button shape, and solid low to medium echotexture.<ref name="radio"> Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/primary-uveal-malignant-melanoma Accessed on October 21, 2015</ref> | ||
==Ultrasound== | ==Ultrasound== | ||
Ultrasound is an excellent modality for examining the globe and is able to visualise small plaque like or discoid uveal melanoma, with a thickness of less than 3 mm, which are usually difficult to assess on CT or MRI. Common features that may be present include:<ref name="radio"> Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/primary-uveal-malignant-melanoma Accessed on October 21, 2015</ref> | Ultrasound is an excellent modality for examining the globe and is able to visualise small plaque like or discoid uveal melanoma, with a thickness of less than 3 mm, which are usually difficult to assess on [[CT]] or [[MRI]]. Common features that may be present include:<ref name="radio"> Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/primary-uveal-malignant-melanoma Accessed on October 21, 2015</ref> | ||
*Solid low to medium echotexture | *Solid low to medium echotexture | ||
*Internal vascularity | *Internal vascularity | ||
| Line 13: | Line 13: | ||
**Tumors may be irregular, lobulated or domed | **Tumors may be irregular, lobulated or domed | ||
Less common features that may be present include: | Less common features that may be present include: | ||
*Retinal detachment | *[[Retinal detachment]] | ||
*Posterior scleral bowing | *Posterior [[scleral]] bowing | ||
*Choroidal excavation | *[[Choroidal]] excavation | ||
*Vitreous or subretinal seeding | *[[Vitreous]] or [[subretinal]] seeding | ||
Additionally larger | Additionally larger [[tumor]] are often significantly sound attenuating. | ||
[[File:Uveal melanoma uveal melanoma.jpg|thumb|none|200px|Ultrasound showing primary uveal melanoma<ref name="radio1">Image courtesy of Dr. Ahmed Abd Rabou [http://www.radiopaedia.org Radiopaedia] (original file [http://radiopaedia.org/cases/primary-uveal-melanoma]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC</ref>]] | |||
== References == | == References == | ||
{{ | |||
{{reflist|2}} | |||
{{WikiDoc Help Menu}} | |||
{{WikiDoc Sources}} | |||
[[Category:Disease]] | |||
[[Category:Ophthalmology]] | |||
[[Category:Up-To-Date]] | |||
[[Category:Oncology]] | |||
[[Category:Medicine]] | |||
[[Category:Ophthalmology]] | |||
Latest revision as of 17:35, 27 November 2017
|
Uveal melanoma Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Uveal melanoma ultrasound On the Web |
|
American Roentgen Ray Society Images of Uveal melanoma ultrasound |
|
Risk calculators and risk factors for Uveal melanoma ultrasound |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [2]Associate Editor(s)-in-Chief: Simrat Sarai, M.D. [3]
Overview
On ultrasound, uveal melanoma is characterized by internal vascularity, collar button shape, and solid low to medium echotexture.[1]
Ultrasound
Ultrasound is an excellent modality for examining the globe and is able to visualise small plaque like or discoid uveal melanoma, with a thickness of less than 3 mm, which are usually difficult to assess on CT or MRI. Common features that may be present include:[1]
- Solid low to medium echotexture
- Internal vascularity
- Collar button shape
- This is the classic shape but not always the case
- Represents the tumor having broken through Bruch's membrane
- Tumors may be irregular, lobulated or domed
Less common features that may be present include:
- Retinal detachment
- Posterior scleral bowing
- Choroidal excavation
- Vitreous or subretinal seeding
Additionally larger tumor are often significantly sound attenuating.
References
- ↑ 1.0 1.1 Retinoblastoma. Radiopedia(2015) http://radiopaedia.org/articles/primary-uveal-malignant-melanoma Accessed on October 21, 2015
- ↑ Image courtesy of Dr. Ahmed Abd Rabou Radiopaedia (original file [1]).[http://radiopaedia.org/licence Creative Commons BY-SA-NC