Endometrial cancer MRI: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
|||
| Line 13: | Line 13: | ||
:* stage 1: tumour confined to uterus | :* stage 1: tumour confined to uterus | ||
::* stage 1a: tumour confined to the uterine endometrium | ::* stage 1a: tumour confined to the uterine endometrium | ||
::* normal or widened endometrium | :::* normal or widened endometrium | ||
::* normal low T2 signal junctional zone | :::* normal low T2 signal junctional zone | ||
::* complete subendometrial enhancement on T1 contrast imaging | :::* complete subendometrial enhancement on T1 contrast imaging | ||
::* stage 1b: invasion of less than half of the myometrium | ::* stage 1b: invasion of less than half of the myometrium | ||
::* 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 | ||
::* stage 1c: invasion of outer half of myometrium | ::* stage 1c: invasion of outer half of myometrium | ||
::* 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. | ||
::* intact low T2W signal of normal cervical stroma | :::* intact low T2W signal of normal cervical stroma | ||
::* stage 2b | ::* stage 2b | ||
::* 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 | ||
::* disruption of low T2 signal uterine serosa | :::* disruption of low T2 signal uterine serosa | ||
::* 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 | ||
==References== | ==References== | ||
Revision as of 19:59, 31 August 2015
|
Endometrial cancer Microchapters |
|
Diagnosis |
|---|
|
Treatment |
|
Case Studies |
|
Endometrial cancer MRI On the Web |
|
American Roentgen Ray Society Images of Endometrial cancer MRI |
|
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]
Pelvic MRI
A dedicated pelvic MRI protocol is recommended for optimal assessment. MRI is considered superior to CT for local staging 1,6. 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