Endometrioma showing diffusion restriction

Case contributed by Keshaw Kumar
Diagnosis almost certain

Presentation

Left adnexal lesion on ultrasound

Patient Data

Age: 25 years
Gender: Female

Contrast enhanced MRI Pelvis

mri
This study is a stack
Coronal
T2
This study is a stack
Axial
T2
This study is a stack
Sagittal
T2
This study is a stack
Axial T2
fat sat
This study is a stack
Axial
T1
This study is a stack
Axial T1
fat sat
This study is a stack
Axial
DWI
This study is a stack
Axial
ADC
This study is a stack
Axial T1
C+ fat sat
This study is a stack
Coronal T1
C+ fat sat
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Info

The well-defined lesion in the left ovary. The lesion appears intermediate signal intensity on T2WI, isointense on T1WI, diffusion restriction on DWI and thin peripheral rim enhancement on T1W fat sat post-contrast images with no evidence of signal suppression on T1W/T2W fat-sat images. Tiny hypointense focus within the lesion on T2WI (T2 dark spot sign).

Case Discussion

The MRI findings are most likely compatible with endometrioma.

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