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Endometrioma with shading sign

Case contributed by: Dr Prashant Gupta

Presentation:

Menstrual disturbance since one month

Patient Data:

Age: 47
Gender: Female
Race: Indian/Pakistani
From the case: Endometrioma with shading sign
Modality: MRI

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  • note the hyperintense cyst in right ovary

T1

note the hyperintense cyst in right ovary

Case Discussion:

Shading sign is the magnetic resonance (MR) imaging finding of T2 shortening in an adnexal cyst that is hyperintense on T1-weighted images

It is a distinguishing feature of endometriotic cysts (endometriomas) at MR imaging

References:

  1. The shading sign. Glastonbury CM. Radiology. 2002 Jul;224(1):199-201. No abstract available. PMID: 12091683 [PubMed - indexed for MEDLINE]

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