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Chronic Leg Swelling: Uncovering a Rare Hydatid Cyst

Somya Goel1, Raju K Shinde1, Tushar Nagtode1

  • 1General Surgery, Jawaharlal Nehru Medical College, Wardha, IND.

Cureus
|January 23, 2025
PubMed

Insights

Primary hydatidosis, a rare Echinococcus granulosus infection, can affect skeletal muscles. This case highlights diagnosing thigh muscle hydatid cysts, emphasizing vigilance in endemic areas like India.

Area of Science:

  • Parasitology
  • Medical Imaging
  • Clinical Case Reports

Background:

  • Hydatidosis is a parasitic infection caused by Echinococcus granulosus.
  • Typically affects the liver and lungs due to blood filtration roles.
  • Primary skeletal muscle hydatidosis is exceptionally rare and often misdiagnosed.

Observation:

  • A case report of a man in his early 70s with a four-year history of chronic, painful thigh swelling.
  • The swelling was localized in the vastus medialis muscle.
  • Initial presentation mimicked a soft tissue tumor, posing diagnostic challenges.

Findings:

  • Diagnostic imaging, including ultrasound and MRI, confirmed a hydatid cyst in the vastus medialis muscle.
  • This confirmed primary skeletal muscle hydatidosis at an atypical site.

Implications:

  • Highlights the importance of considering hydatidosis in differential diagnoses for soft tissue masses, even in unusual locations.
  • Emphasizes the need for a high index of suspicion, especially in endemic regions like India.
  • Accurate and early diagnosis is crucial for effective management of this rare condition.

Keywords:
cyst hydatidechinococcus granulosishelminthic infectionrecurrent hydatid cystunilateral leg swelling

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