September 2015

Authors: Yumei Fu MD PhD, Brian T. Collins MD,MIAC, Section of Cytopathology, Washington University in St. Louis, St. Louis, Missouri, USA

Reviewer: Christopher J. VandenBussche MD PhD, The Johns Hopkins University School of Medicine, Baltimore, Maryland, USA

Solid and Cystic Adnexal Mass in a Young Woman
Clinical History
A 36-year-old woman status post cesarean section six month prior was hospitalized for sepsis, acute renal failure and pleural effusions. She was found to have a large 9 cm complex left adnexal mass which was predominant cystic with focal solid component by imaging studies. There was an adjacent colonic mass which appeared continuous with the adnexal mass. Multiple ill-defined hypoattenuating liver lesions were present concerning for metastasis. The patient underwent ultrasound guided fine needle aspiration (FNA) from the left adnexal mass (Figures 1-4).

Fig 1 2015 Sept
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Fig 2 2015 Sept
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Fig 3 2015 Sept
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Fig 4 2015 Sept
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Based on the cytomorphology, the most likely diagnosis of this adnexal mass on FNA is: