Foot and Ankle Tumors Assessment
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Questions and Answers

What is a key advantage of utilizing DUAL ENERGY CT imaging?

  • It provides excellent soft tissue contrast
  • It allows for detailed 3-d reconstruction of soft tissue masses
  • It distinguishes monosodium urate from bone based on radiographic uptake (correct)
  • It uses magnetic resonance to enhance imaging quality

In MRI, which phase generally provides better detail about the soft tissue mass?

  • T3 phase
  • T2 phase
  • T1 phase (correct)
  • Injectable contrast phase

What advantage does knowledge of the exact mass location from pre-MRI exams offer?

  • It enables utilization of dual-energy imaging
  • Allows for use of a smaller field of view leading to a more detailed image (correct)
  • It improves the 3-d reconstruction process
  • Enhances the soft tissue contrast in the MRI

Which imaging technique involves taking 'slices' of anatomy in cardinal planes?

<p>Magnetic resonance imaging (A)</p> Signup and view all the answers

What is a significant limitation in observing anatomical landmarks in some MRI and CT images?

<p>'Slices' not showing clear anatomy (A)</p> Signup and view all the answers

Why is the relationship between Ledderhose disease tumor and palmar aponeurosis difficult to see in transverse plane view?

<p>'Slices' not showing anatomical landmarks clearly (B)</p> Signup and view all the answers

What is a common mistake that patients may make when correlating symptoms with tumor presentation?

<p>Attributing new pains to muscle weakness (A)</p> Signup and view all the answers

Why is it important to ask about past medical history and family history when examining lesions?

<p>To identify patients at risk for metastases to the foot and ankle (D)</p> Signup and view all the answers

How can the texture of a lesion be described if it feels like many lumps coalesced together?

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

What is a characteristic feature of benign lesions in terms of dimensions?

<p>Less than 3cm in diameter (B)</p> Signup and view all the answers

Why is it significant to determine if a lesion is near joints or tendons during a physical examination?

<p>To differentiate between benign and malignant lesions (B)</p> Signup and view all the answers

Why is it important to try to mobilize a lesion during a physical examination?

<p>To understand if the lesion is bound to the skin or bone (C)</p> Signup and view all the answers

What is the most common pediatric soft tissue tumor?

<p>Capillary hemangioma (C)</p> Signup and view all the answers

What imaging technique shows a characteristic 'bag of worms' appearance for hemangiomas?

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

Which medication is often used for infantile hemangioma treatment?

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

What is the characteristic texture of hemangiomas?

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

What is a key feature of capillary hemangiomas that distinguishes them from other types?

<p>They are tightly packed small capillaries (C)</p> Signup and view all the answers

What type of tumor arises from the glomus body in the dermis?

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

What diagnostic tool is often the most useful for in-office identification of ganglion cysts in the foot and ankle?

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

Which soft tissue tumor is characterized by being hypointense on T1 weighted MRI and hyperintense on T2 weighted MRI?

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

What is a common age range for the occurrence of mucoid cysts in adults?

<p>50-70 years (A)</p> Signup and view all the answers

Which soft tissue mass can occur anywhere in the body where fat cells are present?

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

What distinguishes deep fibromatosis from superficial fibromatosis?

<p>Aggressiveness and depth of tissue involvement (A)</p> Signup and view all the answers

Which soft tissue mass is more likely to recur after excision compared to others?

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

What clinical feature would make mucoid cysts more typical on the fingers?

<p>Grooving or split nail (D)</p> Signup and view all the answers

What is NOT recommended for suspected malignancy?

<p>Excisional biopsy (C)</p> Signup and view all the answers

What is the 'gold standard' for diagnosing soft tissue tumors?

<p>Incisional biopsy (A)</p> Signup and view all the answers

Which biopsy type involves aspiration of fluid contents of a cystic lesion?

<p>Fine needle biopsy (A)</p> Signup and view all the answers

What should be avoided during both excisional and incisional biopsies to prevent complications?

<p>Bleeding that may carry tumor cells (B)</p> Signup and view all the answers

Which type of needle biopsy involves removing a 'core' of tissue for improved accuracy?

<p>Core needle biopsy (D)</p> Signup and view all the answers

What is a common complication of incisional biopsies?

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

'Needle biopsies' are more useful for which type of lesions?

<p>Fluid-filled lesions (D)</p> Signup and view all the answers

'Open biopsies' are more likely to lead to what compared to on-site biopsies?

<p>Misdiagnoses, delays, and poor outcomes (D)</p> Signup and view all the answers

What should a 'biopsy site' align with for proper removal during surgery?

<p>Surgical incision (C)</p> Signup and view all the answers

What is recommended for presumed benign lesions with symptoms?

<p>Excisional biopsy (A)</p> Signup and view all the answers

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