PTG 105-Exam 4-Soft Tissue 1

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kyleannkelsey
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PTG 105-Exam 4-Soft Tissue 1
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2013-05-05 01:41:49
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PTG 105 Exam Soft Tissue
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PTG 105-Exam 4-Soft Tissue 1
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  1. What is a tumor of the skeletal muscle called?
    • Rhabdomyoma
    • Rhabdomyosarcoma
  2. What is a tumor of the Fibrous tissue called?
    • Tumor like conditions
    • Fibrosacrcoma
  3. What does Fibrohistiocytic mean?
    Having both fibrous and histocytic properties
  4. What is histocytic?
    A blood disease characterized by abnormal multiplication of macrophages
  5. What is a common etiology osteosarcoma and fibrosarcoma?
    Radiation
  6. What is a common etiology of Angiosarcoma?
    Chemical like PVC
  7. What is a common etiology of Kaposi sarcoma?
    Infection like AIDS
  8. What is a common etiology of fibromatosis?
    Inheritance
  9. What tumors can be caused by radiation?
    • Osteosarcoma
    • Fibrosarcoma
  10. What tumors can be caused by AIDS?
    Kaposi sarcoma
  11. What tumors can be caused by PVC?
    Angiosarcoma
  12. What tumors can be caused by Genetics?
    Certain fibromatosis
  13. What is Angiosarcoma?
    Blood vessel sarcoma
  14. What age is typical for Rhabdomyosarcoma?
    0-15, incidence tapers into the 30s
  15. What is Synovial Sarcoma most common?
    15-35
  16. What age is typical of Fibrosarcoma?
    15-40
  17. What age is typical of Liposarcoma?
    25-55, usually 40+
  18. What age is typical of Malignant schwannoma?
    30-60
  19. What age is typical of malignant fibrous histcytoma?
    45+
  20. What is the incidence of soft tissue tumors of the lower limbs and girdle?
    40%
  21. What is the incidence of soft tissue tumors of the upper libs and girdle?
    20%
  22. What is the incidence of soft tissue retroperitoneal or intraperitoneal tumors?
    20%
  23. What is the incidence of soft tissue tumors of the trunk?
    10%
  24. What is the incidence of soft tissue tumors of the Head and neck?
    10%
  25. What is the most common soft tussue tumor?
    Lipoma
  26. How common is lipoma?
    Most common soft tissue tumor
  27. Describe Lipoma:
    • Benign
    • Subcutaneous
    • Usually trunk and neck (can be anywhere)
  28. Histologically, what do lipomas look like?
    Bright yellow mature adipose tissue with a fine fibrous capsule
  29. Where are Liposarcomas usually found?
    Deeply seated in soft tissue
  30. What is the most common soft tissue sarcoma?
    Liposarcomas
  31. What are the subtypes of Liposarcoma?
    • Pleomorphic
    • Myoxoid
    • Round cell
    • Well-differentiated
    • Dedifferentiated
  32. What is the pathology of a liposarcoma?
    • Well circumscribed
    • Not encapsulated
    • Contains lipoblasts
  33. A well circumscribed, non-encapsulated tumor that contains lipoblasts is most likely what?
    Liposarcoma
  34. What is the prognosis for liposarcoma?
    Variable
  35. What subtype of liposarcoma has the best prognosis?
    Well-differntiated, myoxoid liposarcoma
  36. What two “tumor like conditions” of the fibrous tissue were discussed in class?
    • Nodular fasciitis
    • Fibromatosis
  37. What age group is affected by nodular fasciitis?
    Young adults
  38. What is Nodular fasciitis commonly misdiagnosed as?
    Sarcoma
  39. Why is Nodular fasciitis commonly misdiagnosed as sarcomas?
    • Cellularity
    • Mitotic figures
    • Fast growth

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