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Echinococcosis Hydatid Cyst Differential Diagnoses

  • Author: Enrico Brunetti, MD; Chief Editor: Burke A Cunha, MD  more...
 
Updated: Apr 08, 2015
 
 
 
Contributor Information and Disclosures
Author

Enrico Brunetti, MD Assistant Professor, Department of Infectious Diseases, Division of Infectious and Tropical Diseases, University of Pavia, Italy; Staff Physician, Department of Infectious Diseases, IRCCS S Matteo Hospital Foundation, Pavia, Italy

Enrico Brunetti, MD is a member of the following medical societies: American Society of Tropical Medicine and Hygiene, European Society of Clinical Microbiology and Infectious Diseases

Disclosure: Nothing to disclose.

Coauthor(s)

Carlo Filice, MD Chief of Ultrasound Unit, Adjunct Professor, Department of Internal Medicine, Division of Infectious and Tropical Diseases, IRCCS S Matteo Hospital, University of Pavia, Italy

Disclosure: Nothing to disclose.

Specialty Editor Board

Francisco Talavera, PharmD, PhD Adjunct Assistant Professor, University of Nebraska Medical Center College of Pharmacy; Editor-in-Chief, Medscape Drug Reference

Disclosure: Received salary from Medscape for employment. for: Medscape.

John W King, MD Professor of Medicine, Chief, Section of Infectious Diseases, Director, Viral Therapeutics Clinics for Hepatitis, Louisiana State University Health Sciences Center; Consultant in Infectious Diseases, Overton Brooks Veterans Affairs Medical Center

John W King, MD is a member of the following medical societies: American Association for the Advancement of Science, American College of Physicians, American Federation for Medical Research, Association of Subspecialty Professors, American Society for Microbiology, Infectious Diseases Society of America, Sigma Xi

Disclosure: Nothing to disclose.

Chief Editor

Burke A Cunha, MD Professor of Medicine, State University of New York School of Medicine at Stony Brook; Chief, Infectious Disease Division, Winthrop-University Hospital

Burke A Cunha, MD is a member of the following medical societies: American College of Chest Physicians, American College of Physicians, Infectious Diseases Society of America

Disclosure: Nothing to disclose.

Additional Contributors

Mark R Wallace, MD, FACP, FIDSA Clinical Professor of Medicine, Florida State University College of Medicine; Clinical Professor of Medicine, University of Central Florida College of Medicine

Mark R Wallace, MD, FACP, FIDSA is a member of the following medical societies: American College of Physicians, American Medical Association, American Society for Microbiology, Infectious Diseases Society of America, International AIDS Society, Florida Infectious Diseases Society

Disclosure: Nothing to disclose.

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WHO Informal Working Group on Echinococcosis standardized ultrasound classification of echinococcal cysts. Image courtesy of World Health Organization (WHO).
CE1 cyst in the right segments of the liver in a young Albanian boy
CE3a echinococcal cyst of the liver. Note the folding endocyst ("waterlily sign") typical of CE3a cysts.
CE3b cyst in the right lobe of the liver. The cyst is predominantly solid with a few daughter cysts
CE4 cyst in the liver. The cyst is completely solid and inactive.
CE3b cyst in the muscles of posterior thigh (scanned with a convex ultrasound probe).
CE4 cysts in the peritoneum in a patient with disseminated echinococcosis (longitudinal scan).
Viable scolices (note rostellar hooklets).
CT scan of peritoneal, disseminated echinococcosis
MR scan of echinococcal cyst in the right psoas muscle, infiltrating the adjacent vertebral body
Ultrasound scan of a CE3b subcutaneous cyst located in the lumbar area. The cyst was the subcutaneous extension of a cyst located in the spine that had been previously operated on.
MR of the spine showing CE involvement of CE3,CE4,CE5 vertebral bodies, spinous processes and subcutaneous tissue (same patient as # )
CT scan showing CE infiltration of vertebral bodies and destruction of left peduncles
 
 
 
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