Hepatic Hydatid Cyst. Two cases. скачать в хорошем качестве

Hepatic Hydatid Cyst. Two cases.

This video shows Two cases of Hepatic Hydatid cysts. Hydatid disease in people is mainly caused by infection with the larval stage of the dog tapeworm Echinococcus granulosus. It is an important pathogenic, zoonotic and parasitic infection (acquired from animals) of humans, following ingestion of tapeworm eggs excreted in the feces of infected dogs. Rupture of a hydatid cyst into the abdominal cavity is a rare complication of the hydatid disease and causes serious problems and severe, life-threatening complications, including anaphylaxis. Rupture can occur spontaneously or following a trauma. Hepatic hydatid disease is a parasitic zoonosis caused by the Echinococcus tapeworm. In the liver, two agents are recognized as causing disease in humans: • Echinococcus granulosus • Echinococcus multilocularis • Septated cyst with "daughter" cysts and echogenic material between the cysts. Appearances can vary. May show a double echogenic shadow due to the pericyst. The stage of the cyst may be classified on ultrasound. Hydatid disease in people is mainly caused by infection with the larval stage of the dog tapeworm Echinococcus granulosus. It is an important pathogenic, zoonotic and parasitic infection (acquired from animals) of humans, following ingestion of tapeworm eggs excreted in the feces of infected dogs. One of the most common ways to diagnose Hydatid Disease is to look for the presence of asymptomatic cysts. Many asymptomatic cysts can be located using Ultrasound Imaging. ... CT and MRI scans are also useful in detecting cysts that are on the liver and/or spleen. Rupture of a hydatid cyst into the abdominal cavity is a rare complication of the hydatid disease and causes serious problems and severe, life-threatening complications, including anaphylaxis. ... Rupture can occur spontaneously or following a trauma. The eggs travel through the bloodstream, lodge in organs and form watery cysts full of tapeworm heads. This is known as hydatid disease or echinococcosis. Hydatid disease is not contagious and is not passed by person-to-person contact. Cystic hydatid disease usually affects the liver (50–70%) and less frequently the lung, the spleen, the kidney, the bones, and the brain. Liver hydatidosis can cause dissemination or anaphylaxis after a cyst ruptures into the peritoneum or biliary tract. Hydatidosis, a zoonotic infection, is due to the larval stage of the tapeworm. It causes right upper quadrant pain, liver enlargement or a palpable mass with weight loss. Cystic echinococcosis (CE), also known as hydatid disease, is caused by infection with the larval stage of Echinococcus granulosus, a ~2-7 millimeter long tapeworm found in dogs (definitive host) and sheep, cattle, goats, and pigs (intermediate hosts). Hydatid disease is a potentially serious but treatable infection that may be fatal in a small number of cases. Hydatid disease occurs worldwide and is especially common in grazing areas. Symptoms of Tapeworm in the stomach Symptoms may vary depending on the type of tapeworm, and they may include the following: eggs, larvae, or segments from the tapeworm in stools. abdominal pain. vomiting. nausea. general weakness. inflammation of the intestine. diarrhea. weight loss. If left untreated, benign cysts can cause serious complications including Infection – the cyst fills with bacteria and pus and becomes an abscess. If the abscess bursts inside the body, there is a risk of blood poisoning (septicemia). The 2001 World Health Organization (WHO) classification of hepatic hydatid cysts is used to assess the stage of hepatic hydatid cyst on ultrasound and is useful in deciding the appropriate management for it depending on the stage of the cyst. This classification was proposed by the WHO in 2001. Classification • CL o unilocular anechoic cystic lesion o no any internal echoes or septations • CE 1 (active stage) o uniformly anechoic cyst with fine internal echoes, may only be visible after patient repositioning o internal echoes represent "hydatid sand" (fluid and protoscolices originating from a ruptured vesicle)2 • CE 2 (active stage) o cyst with internal septation  septa represent walls of daughter cyst(s)  described as multivesicular, rosette, or honeycomb appearance • CE 3 (transitional stage) o evolving appearance of daughter cyst(s) within the encompassing parent cyst o 3A - daughter cysts have detached laminated membranes (water lily sign) o 3B - daughter cysts within a solid matrix • CE 4 (inactive/degenerative) o absence of daughter cysts o mixed hypoechoic and hyperechoic matrix, resembling a ball of wool (ball of wool sign) • CE 5 (inactive/degenerative) o arch-like, thick partially or completely calcified wall Abbreviations • CL: cystic lesion • CE: cystic echinococcosis