Renal hydatid cyst presenting as perinephric and iliopsoas abscess

Hydatid disease is an infestation caused in humans by the larval forms of Taenia echinococcus. Isolated renal hydatid cyst is rare with a frequency of 2-4% of hydatid disease. Infection of hydatid cyst is a very rare condition. We describe a rare case of isolated renal hydatid cyst presenting as perinephric and iliopsoas abscess and discuss the dilemma in diagnosis and its management.     

Liver Hydatid Cyst Rupture Into the Peritoneal Cavity After Abdominal Trauma: Case Report and Literature Review

The aim of this study was to review the literature regarding the rupture of hydatid cysts into the abdominal cavity after trauma. We present both a new case of hydatid cyst rupture that occurred after blunt abdominal trauma and a literature review of studies published in the English language about hydatid cyst rupture after trauma; studies were accessed from PubMed, Google Scholar, EBSCO, EMBASE, and MEDLINE databases. We identified 22 articles published between 2000 and 2011 about hydatid cyst rupture after trauma. Of these, 5 articles were excluded because of insufficient data, duplication, or absence of intra-abdominal dissemination. The other 17 studies included 68 patients (38 males and 30 females) aged 8 to 76 years who had a ruptured hydatid cyst detected after trauma. The most common trauma included traffic accidents and falls. Despite optimal surgical and antihelmintic therapy, 7 patients developed recurrence. Complications included biliary fistula in 5 patients, incisional hernia in 2 patients, and gastrocutaneous fistula in 1 patient. Death occurred from intraoperative anaphylactic shock in 1 patient and gastrointestinal bleeding and pulmonary failure in 1 patient. Rupture of a hydatid cyst into the peritoneal cavity is rare and challenging for the surgeon. This condition is included in the differential diagnosis of the acute abdomen in endemic areas, especially in young patients.     

Echinococcus infestation of the biceps brachii. A case report

Echinococcus is a genus of tapeworm endemic in certain parts of the world but found only rarely in the United States. An extremely unusual case of an intramuscular infestation involving an extremity occurred in a 41-year-old man. Since the infestation closely resembled a soft-tissue tumor on clinical and roentgenographic examination, the patient was treated with an incisional biopsy of the mass, which consisted of a cystic cavity filled with clear fluid. The diagnosis of an Echinococcus cyst was made only after permanent section analysis revealed numerous scoleces within the cyst lining. The patient was asymptomatic six months after cyst excision but still remains at risk for recurrence of the infestation. The present report serves to alert the reader to this rare but potentially fatal condition. Preoperative diagnosis is imperative to avoid inadvertant rupture of a hydatid cyst, which releases viable scoleces into the systemic circulation and may precipitate an anaphylactic reaction.     

Hydatid Cyst in the Pulmonary Artery: An Uncommon Localization

Abstract Pulmonary artery involvement of hydatid disease caused by the Echinococcus granulosus parasite is an uncommon condition resulting from the opening of a visceral hydatid cyst into the venous circulation or the rupture of a cardiac hydatid cyst. We report a case of a 31-year-old woman with a hydatid cyst located in the right pulmonary artery. Clinical presentation was fatigue, cough, and dyspnea. Diagnosis was made by chest x-ray, computed tomography, and magnetic resonance imaging. The cyst was extracted under total circulatory arrest. Diagnosis and surgical therapy of the intraluminal pulmonary arterial hydatid cyst prevented possible occurrence of severe complications, such as cyst rupture, anaphylactic shock, and sudden death.     

Case report of a primary multiloculate muscular cystic hydatidosis

Hydatidosis is a zoonosis caused by the ingestion of Echinococcus granulosus eggs, released though the feces, from infected dogs to humans. Primary localization is mostly hepatic and/or pulmonary, whereas muscular involvement is very rare, even more so in muscular striated tissue. This is the report of a case of a primary intramuscular hydatid cyst in a 79-year-old woman who presented with a 3-year history of a painful lump in her proximal medial left thigh. The authors document the exceptional giant dimensions of the cyst, which have not previously been reported in a case of striated muscular hydatid disease.     

Gluteal region musculoskeletal hydatid cyst: Case report and review of literature

Hydatid disease is a parasitic infestation of humans and herbivorous animals, caused by Echinococcu granulosus. Dogs and some wild carnivores, like foxes, are definitive hosts, harboring worms in their intestines. Musculoskeletal cysts account for 0.7–3% of total cases of hydatidosis. Primarymuscular hydatidosis without involving the thoracic or abdominal organs is extremely rare. Intramuscular infestation may mimic a soft tissue tumor leading to inappropriate cyst rupture with the attendant risks of anaphylaxis and dissemination to other organs. So preoperative evaluation is critical to avoid lifethreatening complications. We report a case of 34-year-old male patient with a cystic gluteal swelling turning out to be hydatid cyst on surgical exploration. Surgical excision with a pharmacology complementary treatment with antihelementhics is necessary to achieve the complete healing.     

Extension of echinococcal spinal infestation extra- and intradurally after a decade of extinction

Simultaneous intradural, extradural, vertebral and paravetebral invasion of hydatid cyst, pathologic fracture, and multiple vertebral involvement are all rare encountered conditions in echinococcal infestation. A 48-year-old man who had experienced a falling down trauma, 10 years ago, and at that time, because of L1 burst fracture, undergone on Harrington rod placement, admitted in our ward for newly started urinary retention and mild paresis of lower extremities. With imaging analysis and during surgery, we discovered the extension of echinococcal spinal infestation extra- and intradurally after a decade of extinction. We performed a double stage circumferential reconstruction and adjuvant long term chemotherapy. We closely monitor our patient neurologically and radiologically and believe that aggressive surgical treatment and sustained cyclical albendazole therapy can increase the quality of life and life expectancy.     

Intraoperative anaphylaxis caused by a hydatid cyst

The incidence of the hydatid disease is still high in some regions of the Mediterranean. A serious, but rare, peroperative complication is lgE,-medialed anaphylaxis, as a result of passing of the highly antigenic hydatid cyst content into the bloodstream. We present here a case of anaphylactic reactiori in a patient who underwent surgical treatment of hydatid cyst.     

Malignant hydatid disease--clinical case

We report the case of a 79-year-old woman admitted for sepsis from a hepatic hydatid cyst with multiple disseminations diagnosed one month earlier who refused the surgical treatment. Her family history was irrelevant with regard to the circumstances leading to Taenia Echinococcus infestation, and given her poor health status and absence of previous medical documents no useful information was obtained from her medical history. The patient also presented chronic ischemic heart disease and anemia secondary to a bleeding duodenal ulcer, found at necropsy, which worsened the already unfavorable course by the acute hepatic and renal failure secondary to toxic and septic shock. Despite the complex treatment, death occurred 6 days later, following a second episode of upper digestive hemorrhage. Particular to this case is the absence in patient's history of the anaphylactic/allergic reactions suggestive of hepatic hydatid cyst dissemination.     

Acute pulmonary embolism due to the rupture of a right ventricle hydatic cyst.

Hydatid pulmonary embolism is an uncommon condition resulting from the rupture of a hydatid heart cyst or the opening of a visceral hydatid cyst (often in the liver) into the venous circulation. We report a case of hydatid pulmonary embolism following rupture of a hydatic cyst in the right ventricle. Pulmonary angiography showed right pulmonary occlusion. Echocardiography, computed tomography scan and magnetic resonance imaging showed images suggesting a hydatid cyst. The patient underwent sternotomy and cardiopulmonary bypass in order to treat the heart cyst and remove the hydatic pulmonary obstruction. A concomitant lung hydatid cyst was extirpated.