Splenic hydatid cyst

Case contributed by Badis Al Harbawi
Diagnosis certain


Left upper quadrant pain

Patient Data

Age: 35 years
Gender: Male

A thin-walled anechoic cyst is seen superomedial to the spleen, which appears to communicate with an intrasplenic well-defined lobulated hypoechoic lesion. 

Abdo CT with IV C+


There is a large cystic lesion measuring about 7.2 x 6.8 x 5 cm in the left upper abdomen anteriorly between the stomach and the spleen causing compression of the gastric fundus. Fat stranding is seen around the distal aspect of this lesion.

The mentioned cystic lesion appears to communicate with a lobulated cyst/cavity measuring about 3.8 x 3.4 x 2.5 cm at the anterior aspect of the spleen. 

No calcifications are seen in the mentioned cystic lesion. Faint marginal enhancement is seen in the splenic component of the cystic lesion. 

No liver cysts. No abdominal masses, enlarged lymph nodes, or free fluid collection. 


Intraoperative photo and histopathology report confirm that the described splenic and parasplenic cystic lesion is a hydatid cyst. 

Case Discussion

This case represents an intraoperative and pathologically proven splenic hydatid cyst.

Hydatid cyst of the spleen is a rare entity, especially when isolated to the spleen, accounting for about 4 % of abdominal hydatid disease. Radiological findings are similar to those of liver hydatid cysts, ranging from cystic to solid appearance and from a unilocular cyst to multivesicular cyst. Calcifications in the cyst wall may occur.

Patients are usually asymptomatic, but when the cyst reaches considerable size patients may develop symptoms like abdominal pain, enlarged spleen, fever, and a palpable mass.

Complications include:

  • rupture
  • infection
  • fistulisation with adjacent structures
  • anaphylaxis

How to use cases

You can use Radiopaedia cases in a variety of ways to help you learn and teach.

Creating your own cases is easy.

Updating… Please wait.

 Unable to process the form. Check for errors and try again.

 Thank you for updating your details.