Isolated pericardial hydatid: A rare presentation of hydatid disease

A case of isolated pericardial hydatid disease is presented to highlight the rare location of the hydatid disease. Hydatid disease is a common disease but the most common affected organs are liver and lung with only limited number of cases reported of isolated pericardial hydatid.     

An asymptomatic ruptured hepatic hydatid cyst case presenting with subdiaphragmatic gas in a traumatic patient

Hydatid disease presents as hydatid cysts primarily in the liver and lungs. Although hepatic hydatid cysts (HHCs) may be asymptomatic for many years, they may be symptomatic due to expansion, rupture, and pyogenic infection. Rupture of the HHC into the biliary tract is one of the most serious complications and is frequently related to overenlargement of the cyst or major trauma. Patients with this disease usually have jaundice or fever. We report an asymptomatic HHC ruptured after minor trauma. While the ruptured cyst was presented as the subdiaphragmatic gas on the chest radiography, it was detected as a large cyst with multiple daughter cysts on ultrasound, computed tomography scan, and magnetic resonance imaging.     

Case report: misdiagnosis of an atypical pericardial cyst presenting in a patient with chest trauma

We report a patient who presented following major trauma to the chest who had a pericardial cyst in the anterior aspect of the upper mediastinum, the high CT number of which led to a misdiagnosis. The patient underwent surgery when the pericardial cyst was excised.     

Asymptomatic isolated hydatid pericardial cyst: Important item in the differential diagnosis list (To be kept in mind)

Hydatid disease is a parasitic infestation produced by Echinococus granulosus implicating many suburban areas in various sheep-and cattle as a primary host. It involve any organ or tissue in human body but it's seldom implicates the pericardium. In the heart commonly located in the left or right ventricle (Murphy et al., 1971) and infrequently seen within the pericardium and comprise of 0.5–2% of hydatid cysts (Rein et al., 1996). It is usually asymptomatic unless the cyst grows to a big size with subsequent compression symptoms occurred. Complications have been stated, like cystrupture, cardiac compression, arrhythmia and even sudden death (Fredman et al., 1994).     

Pulmonary artery embolism due to a ruptured hepatic hydatid cyst: clinical and radiologic imaging findings

Hydatid pulmonary embolism is an uncommon condition resulting from the rupture of a hydatid heart cyst or the opening of a visceral hydatid cyst into the venous circulation. We report a rare case with multiple intra-arterial pulmonary hydatid cyst emboli originating from a hepatic hydatid cyst ruptured into the hepatic segment of the inferior vena cava. We present the ultrasonography findings of hepatic hydatid cyst and multidetector computed tomography pulmonary angiography images demonstrating both multiple hydatid cyst emboli and their hepatic origin.     

Isolated retroperitoneal hydatid cyst. CT study. Apropos of a case

A 30 year old patient with isolated retroperitoneal hydatid cyst was the first case of this type to be studied by CT scanning. Isolated retroperitoneal hydatid cyst is defined as any zone of hydatidosis occurring in the fatty tissue of the spaces lying behind posterior parietal peritoneum, without any parasitic foci in other organs. Differential diagnosis from other primary retroperitoneal cysts has been improved by the availability of modern imaging procedures: ultrasonography and CT scan.     

Intrabiliary rupture of hydatid cyst: diagnosis with MRI and hepatobiliary isotope study

Intrabiliary rupture is the most common complication of hepatic hydatid cyst yet it is unusual, occurring in only 3-17% of cases. The diagnosis is rarely difficult on ultrasound and CT when typical radiological features are present. In rare cases of complete evacuation, when characteristic findings of hydatid cyst are absent or when there is no evidence of the previous existence of liver hydatid cyst, the diagnosis may be difficult. In difficult cases, MRI, MRCP, ERCP and (99)Tc(m)-mebrofenin hepatobiliary scintigraphy are employed. We present a rare case of surgical obstructive jaundice due to rupture of a liver hydatid cyst into the biliary tract and gall bladder, with complete evacuation of its contents leading to misdiagnosis on CT and ultrasound. MRCP and (99)Tc(m)-mebrofenin hepatobiliary scintigraphy were able to establish a firm pre-operative diagnosis.     

FDG uptake in unilateral breast related to breastfeeding practice in a patient of pulmonary hydatid cyst

Unusual FDG uptake in unilateral breast on FDG PET study in a 32-year-old lactating woman with recent diagnosis of left upper lobe hydatid cyst is described. The FDG PET study demonstrated uptake in the periphery of the lesion corresponding to the hydatid cyst. In addition, there was an unusually intense FDG tracer uptake in the right breast. She was questioned about her breastfeeding practice in view of the unilateral uptake, and she gave a history of feeding her child from the right breast only. This case gives insight into the fact that there is differential glucose transporter activity in lactating women related to breastfeeding practice as evidenced by unilateral FDG uptake in breast.     

Accumulation of F-18 FDG in the infected pulmonary cyst in a patient with hydatid disease

Echinococcosis is endemic in certain parts of the world, including Turkey. When the pulmonary cyst has characteristic features, it can be easily diagnosed, but when the appearance changes as a result of complications, the cyst may resemble a malignant lesion. We presented a complicated pulmonary hydatid disease patient who was referred to our department for PET–CT, after the detection of 2 lung lesions.     

Differential diagnosis of asymptomatic retroperitoneal cystic lesion: a new case of retroperitoneal bronchogenic cyst

European Radiology -     

Transformation of a pericardial cyst observed on long-term follow-up

An atypical pattern of pericardial cyst was observed on a routine chest radiograph of a healthy 25-year-old woman. It appeared as an important elevation of the right diaphragm. The cystic nature of the mass was easily disclosed by ultrasonography and computed tomography, but its location—thoracic, diaphragmatic, or subphrenic—remained questionable. Finally, a percutaneous puncture yielded 1300 mL of clear liquid. Despite this huge volume, the cyst had been asymptomatic and did not recur after complete aspiration. Retrospectively, owing to previous files, we could recognize the evolution of a pericardial cyst from the age of 13 years. At that time, it was much smaller and was evaluated by a series of aggressive investigations, although it had a more typical pattern and was confined to the right cardiophrenic angle.     

左心室壁包虫及肺包虫一例

患者男,49岁,有牧区生活史.体检发现左肺部包块收入院.平时无胸痛、胸闷,无心悸、气短,偶有咳嗽并有白痰.体检:左肺语颤减弱,左肺呼吸音低.心脏彩超示:心包囊性占位,左心室顺应性减低,右侧法氏窦膨出.X线胸片示:左肺上叶囊性占位,考虑囊性肺包虫.实验窜检查:包虫间接血清凝集试验阳性.