Ovarian serous cystadenoma

Case contributed by Ammar Ashraf
Diagnosis certain

Presentation

Sudden severe lower abdominal pain associated with vomiting 1 day. No change in the urinary or bowel habits.

Patient Data

Age: 40 years
Gender: Female
ultrasound
Longitudinal
Oblique
Transverse &
longitudinal
Transverse
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Info

Large well-defined anechoic thin walled cyst with clear fluid contents, measuring 15 x 13 x 10 cm seen in the infra-umbilical region. No septations, calcifications, solid component or internal vascularity is seen in it.

ct
This study is a stack
Axial
non-contrast
This study is a stack
Axial C+ portal
venous phase
This study is a stack
Coronal
non-contrast
This study is a stack
Coronal C+ portal
venous phase
This study is a stack
Sagittal
non-contrast
This study is a stack
Sagittal C+ portal
venous phase
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Info

Large, well-defined, cystic lesion containing clear/simple fluid contents, arising from the pelvis and extending upwards into the lower abdomen, measuring 16 x 14 x 11 cm. A shallow indentation is seen at its left inferior surface. The cyst wall is relatively thin and regular (less than 4 mm thickness), and has no solid mural nodules or papillary projections.  The inferior root of the lesion is inseparable from the right ovary, fallopian tube and broad ligament. Surrounding fat planes are clear. A few small radiopaque gallstones. Two lobulated thin-walled pancreatic cysts, measuring 2 x 2 cm and 1.3 x 1.1 cm, are seen. No ascites or lymphadenopathy is seen.  

Case Discussion

Procedure: Laparotomy with right salpingo-oophorectomy. 

Diagnosis: Benign serous cystadenoma.

Gross Description: Specimen submitted in one formalin container labeled “Right ovarian cyst”.  It is composed of a thin-walled oval cyst measuring 17 x 14 x 10 cm and weighing 1353 grams.  On opening up, it is filled with clear, yellowish watery fluid. The inner lining is smooth without any papillation.

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