MSK - Soft tissue tumours

Question 1

High water content masses

Answer 1

• Hematoma
• Abscess
• Ganglion, synovial cyst, bursa
• Myxoid tumours (liposarcoma, myxoma)
• ,Nerve sheath tumour
• Chondrosarcoma

*If looks like cyst but in wrong location, need to give gad

Question 2

Name the subtypes of liposarcoma and demographics

Answer 2

Well differential, de-differentiated, myxoid/small cell, and undifferentiated pleomorphic sarcoma

All occur in adults - UPS more common in older patients
Note: liposarcoma RARELY occurs in children, think lipoblastoma if you see a fatty mass

Question 3

Age, demographics and imaging features desmoid tumours

Answer 3

Middle aged, F>M (pregnancy, estrogen)
Intra-abdominal associated Gardner syndrome
Low T1/T2 (can enhance)

Most common locations for extra-abdominal tumours: upper extremities, chest, flank and head and neck

Most common locations for intra-abdominal tumours:
abdominal wall, mesenteric root, retroperitoneum