Endometrial cancer MRI: Difference between revisions
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A dedicated pelvic MRI protocol is recommended for optimal assessment.<ref>{{Cite web | title =endometrial cancer MRI | url =http://radiopaedia.org/articles/endometrial-carcinoma/Dr Amir Rezaee◉ and Dr Yuranga Weerakkody◉ et al}}</ref> | A dedicated pelvic MRI protocol is recommended for optimal assessment.<ref>{{Cite web | title =endometrial cancer MRI | url =http://radiopaedia.org/articles/endometrial-carcinoma/Dr Amir Rezaee◉ and Dr Yuranga Weerakkody◉ et al}}</ref> | ||
MRI is considered superior to CT for local staging. Contrast enhanced MRI imaging improves accuracy in detecting myometrial invasion. | MRI is considered superior to CT for local staging. Contrast enhanced MRI imaging improves accuracy in detecting myometrial invasion. | ||
* T1: hypo- to isointense to normal endometrium | * T1: hypo- to isointense to normal [[endometrium]] | ||
* T1 C+(Gd): carcinomatous tissue will enhance less than normal endometrium | * T1 C+(Gd): carcinomatous tissue will enhance less than normal endometrium | ||
* T2: hyperintense or heterogeneous relative to normal endometrium | * T2: hyperintense or heterogeneous relative to normal endometrium | ||
| Line 25: | Line 25: | ||
:::* disruption or irregularity of the low T2 signal junctional zone | :::* disruption or irregularity of the low T2 signal junctional zone | ||
:::* disruption of subendometrial early enhancement | :::* disruption of subendometrial early enhancement | ||
:::* preservation of band of outer myometrium | :::* preservation of band of outer [[myometrium]] | ||
:* stage 2: tumour extends to cervix | :* stage 2: tumour extends to [[cervix]] | ||
::* stage 2a | ::* stage 2a | ||
:::* widening of internal os and endocervical canal by high/isointense T2W signal tumour mass. | :::* widening of internal os and endocervical canal by high/isointense T2W signal tumour mass. | ||
| Line 33: | Line 33: | ||
:::* widening of internal os and endocervical canal by high/isointense T2W signal tumour mass | :::* widening of internal os and endocervical canal by high/isointense T2W signal tumour mass | ||
:::* disruption of low T2 signal cervical stroma | :::* disruption of low T2 signal cervical stroma | ||
:* stage 3: tumour extension beyond the uterus | :* stage 3: tumour extension beyond the [[uterus]] | ||
::* stage 3a | ::* stage 3a | ||
:::* irregularity to the uterine contour | :::* irregularity to the uterine contour | ||
| Line 39: | Line 39: | ||
::* stage 3b | ::* stage 3b | ||
:::* thickening of vaginal wall | :::* thickening of vaginal wall | ||
:::* high T2 signal tumour infiltrating low signal vaginal wall | :::* high T2 signal tumour infiltrating low signal [[vaginal]] wall | ||
::* stage 3c | ::* stage 3c | ||
:::* pelvic/para aortic lymph node involvement | :::* pelvic/para aortic lymph node involvement | ||
:::* short axis >/= 8 mm in pelvic nodes | :::* short axis >/= 8 mm in pelvic nodes | ||
:* stage 4: bladder/rectal or distant metastasis::* stage 4a | :* stage 4: bladder/rectal or distant metastasis::* stage 4a | ||
:::* disruption of low T2 signal bladder or rectal wall | :::* disruption of low T2 signal [[bladder]] or rectal wall | ||
:::* intraluminal bladder mass | :::* intraluminal bladder mass | ||
Revision as of 21:10, 2 September 2015
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Endometrial cancer Microchapters |
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Endometrial cancer MRI On the Web |
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American Roentgen Ray Society Images of Endometrial cancer MRI |
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Risk calculators and risk factors for Endometrial cancer MRI |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]Associate Editor(s)-in-Chief: Monalisa Dmello, M.B,B.S., M.D. [2]
Overview
Pelvic MRI may be diagnostic of endometrial cancer.
Pelvic MRI
A dedicated pelvic MRI protocol is recommended for optimal assessment.[1] MRI is considered superior to CT for local staging. Contrast enhanced MRI imaging improves accuracy in detecting myometrial invasion.
- T1: hypo- to isointense to normal endometrium
- T1 C+(Gd): carcinomatous tissue will enhance less than normal endometrium
- T2: hyperintense or heterogeneous relative to normal endometrium
MR Imaging findings according to FIGO stage
- stage 1: tumour confined to uterus
- stage 1a: tumour confined to the uterine endometrium
- normal or widened endometrium
- normal low T2 signal junctional zone
- complete subendometrial enhancement on T1 contrast imaging
- stage 1b: invasion of less than half of the myometrium
- disruption or irregularity of the low T2 signal junctional zone
- disruption of subendometrial early enhancement
- stage 1c: invasion of outer half of myometrium
- disruption or irregularity of the low T2 signal junctional zone
- disruption of subendometrial early enhancement
- preservation of band of outer myometrium
- stage 2: tumour extends to cervix
- stage 2a
- widening of internal os and endocervical canal by high/isointense T2W signal tumour mass.
- intact low T2W signal of normal cervical stroma
- stage 2b
- widening of internal os and endocervical canal by high/isointense T2W signal tumour mass
- disruption of low T2 signal cervical stroma
- stage 3: tumour extension beyond the uterus
- stage 3a
- irregularity to the uterine contour
- disruption of low T2 signal uterine serosa
- stage 3b
- thickening of vaginal wall
- high T2 signal tumour infiltrating low signal vaginal wall
- stage 3c
- pelvic/para aortic lymph node involvement
- short axis >/= 8 mm in pelvic nodes
- stage 4: bladder/rectal or distant metastasis::* stage 4a
- disruption of low T2 signal bladder or rectal wall
- intraluminal bladder mass
References
- ↑ Amir Rezaee◉ and Dr Yuranga Weerakkody◉ et al "endometrial cancer MRI" Check
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