Dysfunctional uterine bleeding MRI

	Dysfunctional uterine bleeding Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Arooj Naz

Overview

MRI Findings
Underlying Cause	MRI	Findings
Endometrial Polyps ^[1]	Case courtesy of Dr Ammar Haouimi, Radiopaedia.org, rID: 70016	hypointense intracavitary masses surrounded by fluid and endometrium
Adenomyosis ^[2]	Case courtesy of Dr Varun Babu, Radiopaedia.org, rID: 43504	Diagnosis of choice; sensitivity of 78-88% and specificity of 67-93% thickening of the junctional zone ≥12 mm (normal is up to 5 mm) appears as an ill-defined region of thickening
Leiomyoma ^[3]	Case courtesy of Dr Chris O'Donnell, Radiopaedia.org, rID: 22883	only used for complex cases may accurately determine size and location appear hypervascular helpful when surgery is considered or when trying to differentiate from fibroids
Malignancy ^[4]	Case courtesy of Dr Bahman Rasuli, Radiopaedia.org, rID: 83200	MRI may be helpful in improving accuracy for determining metastasis normal tissue enhances more than malignant tissue
PCOS ^[5]	Case courtesy of Dr Mostafa El-Feky, Radiopaedia.org, rID: 53010	not a routine examination for PCOS follicles will be seen on MRI
Endometrial Causes ^[6]	Case courtesy of The Radswiki, Radiopaedia.org, rID: 11397	Endometrioma appears hyperintense; the presence of hemorrhage results in a hypointense image