Detection of Residual or Recurrent Disease in Cancer Treatment
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Questions and Answers

What is the challenge faced by MRI and CT scans in differentiating?

  • inflammatory responses from tumor recurrence
  • cancer stem cells from normal cells
  • post-therapy changes from residual viable tumor tissue (correct)
  • benign tumors from malignant tumors

What is the role of radiopharmaceuticals in different malignancies?

  • to differentiate benign from malignant tumors
  • to treat cancer
  • to detect recurrence (correct)
  • to diagnose cancer

What is the advantage of PET scans over CT or MRI?

  • less radiation exposure
  • higher spatial resolution
  • ability to differentiate tumor recurrence from necrosis (correct)
  • better soft tissue contrast

What is shown in the follow-up F-18-FDG-PET/CT study?

<p>recurrent tumor at multiple lymph nodes and spleen (C)</p> Signup and view all the answers

What is the age of the patient in the F-18-FDG-PET/CT study?

<p>21 years old (A)</p> Signup and view all the answers

What is the primary purpose of using PET scans in cancer treatment?

<p>To differentiate between tumor recurrence and necrosis (D)</p> Signup and view all the answers

What is the limitation of MRI and CT scans in detecting residual or recurrent disease?

<p>Difficulty in differentiating between tumor recurrence and necrosis (D)</p> Signup and view all the answers

What is the benefit of using F-18-FDG-PET/CT studies in Hodgkin's lymphoma?

<p>Differentiation between tumor recurrence and necrosis (D)</p> Signup and view all the answers

What is the role of radiopharmaceuticals in cancer treatment?

<p>To play an important role in different malignancies (C)</p> Signup and view all the answers

Why are PET scans helpful in cancer treatment?

<p>They help differentiate between tumor recurrence and necrosis (C)</p> Signup and view all the answers

What is the main reason why PET scans are used in cancer treatment?

<p>To differentiate between residual viable tumor tissue and necrosis (C)</p> Signup and view all the answers

What is the significance of radiopharmaceuticals in cancer treatment?

<p>They play a crucial role in detecting recurrence in different malignancies (B)</p> Signup and view all the answers

Why are PET scans preferred over CT or MRI scans in certain cases?

<p>They are better at detecting tumor recurrence in certain types of cancer (B)</p> Signup and view all the answers

What is the main advantage of using F-18-FDG-PET/CT studies in cancer treatment?

<p>They are better at detecting tumor recurrence in certain types of cancer (C)</p> Signup and view all the answers

What is the implication of detecting residual or recurrent disease in cancer treatment?

<p>It suggests that the patient needs further treatment (A)</p> Signup and view all the answers

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