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General surgery

CHAPTER 15. PARASITIC SURGICAL DISEASES

8 topics with a brief review: definitions, key facts, and classroom questions.

This chapter is dedicated to the surgical complications of parasitic infestations. Although basic helminth therapy falls within the purview of infectious disease specialists, surgeons step in when mass lesions, abscesses, or mechanical obstruction of hollow organs develop.

The section covers eight key nosologies: from classic hepatic echinococcosis and alveococcosis to the surgical presentations of ascariasis, opisthorchiasis, amebiasis, filariasis, paragonimiasis, and fascioliasis. We examine the pathogenesis of tissue lesions, specific imaging findings, and strict indications for surgical intervention in detail.

In clinical settings and examinations, differential diagnosis of liver cysts (primarily echinococcal), safe intraoperative management protocols (aparasitic and antiparasitic principles), and surgical tactics for intestinal or biliary obstruction caused by an ascarid bolus are most frequently tested. Pay maximum attention to these topics.

Section Topics

Frequently asked questions for this section

Can one contract alveococcosis from another person?

No, humans act as intermediate hosts and a biological dead end for the parasite, so transmission of the pathogen from person to person is impossible.

Can intestinal obstruction due to ascariasis be detected on plain radiographs?

Yes, fluid levels within the intestinal loops, known as Kloiber's cups, will be visible on the radiograph.

Which surgical hepatic complication occurs most frequently in opisthorchiasis?

The most frequent complication is purulent cholangitis, which can lead to the formation of liver abscesses.

What is an ameboma?

It is an inflammatory perifocal infiltrate of the large intestine wall (usually the cecum or ascending colon) developing around a chronic amebic ulcer.

Which types of filariasis are most significant for the surgeon?

Wuchereriasis and brugiasis are of primary surgical interest. It is they that lead to severe lymphatic blockages and elephantiasis.

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