Foot and Ankle Tumors Assessment

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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?

Magnetic resonance imaging (A) Signup and view all the answers

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

'Slices' not showing clear anatomy (A) Signup and view all the answers

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

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

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

Attributing new pains to muscle weakness (A) Signup and view all the answers

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

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

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

Lobulated (C) Signup and view all the answers

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

Less than 3cm in diameter (B) Signup and view all the answers

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

To differentiate between benign and malignant lesions (B) Signup and view all the answers

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

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

What is the most common pediatric soft tissue tumor?

Capillary hemangioma (C) Signup and view all the answers

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

MRI (D) Signup and view all the answers

Which medication is often used for infantile hemangioma treatment?

Beta blockers (D) Signup and view all the answers

What is the characteristic texture of hemangiomas?

Rubbery (A) Signup and view all the answers

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

They are tightly packed small capillaries (C) Signup and view all the answers

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

Glomus tumor (D) 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?

Ultrasound (C) 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?

Lipoma (D) Signup and view all the answers

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

50-70 years (A) Signup and view all the answers

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

Lipoma (D) Signup and view all the answers

What distinguishes deep fibromatosis from superficial fibromatosis?

Aggressiveness and depth of tissue involvement (A) Signup and view all the answers

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

Fibroma (C) Signup and view all the answers

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

Grooving or split nail (D) Signup and view all the answers

What is NOT recommended for suspected malignancy?

Excisional biopsy (C) Signup and view all the answers

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

Incisional biopsy (A) Signup and view all the answers

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

Fine needle biopsy (A) Signup and view all the answers

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

Bleeding that may carry tumor cells (B) Signup and view all the answers

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

Core needle biopsy (D) Signup and view all the answers

What is a common complication of incisional biopsies?

Hematoma (D) Signup and view all the answers

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

Fluid-filled lesions (D) Signup and view all the answers

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

Misdiagnoses, delays, and poor outcomes (D) Signup and view all the answers

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

Surgical incision (C) Signup and view all the answers

What is recommended for presumed benign lesions with symptoms?

Excisional biopsy (A) Signup and view all the answers