An Adrift and Homeless Cyst within the Peritoneal Cavity

Abstract

Introduction. Echinococcosis is a zoonotic infection caused by Echinococcus species. Iran is endemic for Echinococcus granulosus. Here, we present a case of hydatidosis in an 85-year-old man, presented with acute, dull, constant, and generalized abdominal pain. A computed tomography scan (CT scan) showed an intact hydatid cyst on the bladder dome and several hydatid cysts in the liver. Open surgery revealed a cyst with hepatic origin, confirmed with histopathological studies. Conclusion. Although a primary abdominal hydatid cyst is very rare, it can be transferred to the abdominal cavity without any rupture as secondary ones. In this case, rupture of the liver wall was the reason for this transfer. As a result, there should be a suspicion of hydatidosis in a patient with a similar presentation.

Primary extraperitoneal hydatid cyst, a rare differential diagnosis of subdiaphragmatic mass: A case report

“…Regarding the abdominal cavity, the retroperitoneum in back and forth and the peritoneum in the middle are among the rarest sites, as a study reported that peritoneal and pelvic cavity hydatid cysts account for only about 2%–5% of the total cases diagnosed with CE 12 . As several studies reported, the CE in these sites is mainly presented with abdominal pain due to the mass effect caused by hydatid cysts 4,9,12 …”

“…12 As several studies reported, the CE in these sites is mainly presented with abdominal pain due to the mass effect caused by hydatid cysts. 4,9,12 Previous studies have indicated that hydatid cysts can also be found in the abdominal wall (Table 1). According to a review by Salih et al, primary hydatid cysts in the abdominal wall are a rare disease with only six reported cases up to date.…”

“…3 Echinococcus granulosus is a prevalent occurrence in Iran, a country located in the Middle East. 4 Each year, this parasite causes extensive damage to the body's organs, resulting in significant costs to the healthcare system. The estimated cost of human CE in Iran is $93.39 million.…”

“…CE can go undiagnosed as it is often asymptomatic due to its silent nature 3 . Echinococcus granulosus is a prevalent occurrence in Iran, a country located in the Middle East 4 . Each year, this parasite causes extensive damage to the body's organs, resulting in significant costs to the healthcare system.…”