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Endometriosis –Spectrum of MRI Appearances
Endometriosis –Spectrum of MRI Appearances
Thomas Jefferson UniversityPhiladelphia, PA
Donald G. Mitchell, M.D.
•Differential Diagnosis
•Invasive Endometriosis
MRI Features of Endometriosis
• Hyperconcentrated Blood» Intense T1 signal» Decreased T2 signal (“shading”)
• Irregular edges
• Multiplicity
• Scarring, proliferative response
Dermoid,
Endometriosis
Dermoid,
Endometriosis
EndometriosisEndometriosis
T1 FatSat
T2-FSE
T1-SE
T2W
T1-FS
Adenomyosis
Sag T2 Sag T2
Invasive Endometriosis
7-year intervalEndometriosis
42 y.o. with Hematuria
Sag T2
* *
* = Uterus
Carolyn Reinhold, MD; McGill
42 y.o. with hematuria
Ax T2
Ax T1 FS Ax T1 C Ax T1 C
Scar Endometriosis
SagSag
AxialAxial
SagSag
AxialAxial
CoronalCoronal
1.Endometriosis is common, and best evaluated by MRI.
2.Endometriomas are not cysts; they are collections of hyperconcentrated blood.
3.Invasive endometriosis results when endometrial implants incite a proliferative response, similar to adenomyosis.