Hemorrhoids and Fistula in Ano: Clinical Considerations Quiz

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Questions and Answers

When is resection indicated for hemorrhoids?

  • For all symptoms
  • For preventive measures
  • Only for refractory symptoms (correct)
  • For mild symptoms

What is the role of hemorrhoids in the body?

  • Assisting in respiration
  • Maintaining continence (correct)
  • Aiding in digestion
  • Supporting the immune system

Where do up to 25% of neuroendocrine tumors occur?

  • Liver
  • Rectum (correct)
  • Pancreas
  • Stomach

What factor determines the sensitivity of GISTs (gastrointestinal stromal tumors) to tyrosine kinase inhibitors (TKIs)?

<p>Expression of CD117 (KIT) (C)</p> Signup and view all the answers

What are the common features of well-differentiated neuroendocrine tumors (carcinoid tumors) when identified on colonoscopy?

<p>Small size (C)</p> Signup and view all the answers

What are the clinical manifestations of larger GISTs (gastrointestinal stromal tumors)?

<p>Bleeding, obstruction, or abdominal pain (C)</p> Signup and view all the answers

What is the treatment of choice for tumors occurring in the retrorectal space?

<p>Surgical resection with microscopically negative margins (A)</p> Signup and view all the answers

Which type of lesions constitute the majority of congenital lesions in the retrorectal space?

<p>Developmental cysts (C)</p> Signup and view all the answers

What is the most common malignant tumor in the retrorectal space?

<p>Chordomas (B)</p> Signup and view all the answers

Which type of lesion often contains tissue from each germ cell layer and may have both cystic and solid components?

<p>Teratomas (D)</p> Signup and view all the answers

What is the pathognomonic radiographic appearance of anterior meningocele and myelomeningocele?

<p>Scimitar sign (A)</p> Signup and view all the answers

Which type of lesions are more likely to be malignant than cystic lesions in the retrorectal space?

<p>Solid lesions (C)</p> Signup and view all the answers

For which condition is surgical resection (local excision or radical resection) with microscopically negative margins the preferred treatment?

<p>Retrorectal tumors (B)</p> Signup and view all the answers

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