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| <center><WikiQuiz | | <center><WikiQuiz |
| questionnumber="12" | | questionnumber="12" |
− | question="" | + | question="The margins are clear and the pathologist confirms your histological diagnosis of grade 2 STS: it is a haemangiopericytoma. What other tumours fit the STS category, characterized by similar biological behaviour? (Choose three of the following.) |
− | choice1="" | + | :a) Synovial cell sarcoma |
− | choice2="" | + | :b) Splenic haemangiosarcoma |
− | choice3="" | + | :c) Histocytic sarcoma |
− | choice4="" | + | :d) Peripheral nerve sheath tumours |
− | choice5="" | + | :e) Brachial or lumbar plexus nerve root tumours |
− | correctchoice="4" | + | :f) Malignant schwannomas |
− | feedback1="" | + | :g) Fibrosarcoma" |
− | feedback2="" | + | choice1="a, c, e" |
− | feedback3="" | + | choice2="b, c, f" |
− | feedback4="" | + | choice3="b, d, e" |
− | feedback5="" | + | choice4="a, d, g" |
| + | choice5="d, f, g" |
| + | correctchoice="5" |
| + | feedback1="'''Incorrect'''. One of more of the options selected are incorrect. Choose again." |
| + | feedback2="'''Incorrect'''. One of more of the options selected are incorrect. Choose again." |
| + | feedback3="'''Incorrect'''. One of more of the options selected are incorrect. Choose again." |
| + | feedback4="'''Incorrect'''. One of more of the options selected are incorrect. Choose again." |
| + | feedback5="'''Correct'''. Synovial cell sarcoma have a greater affinity for lymph node metastasis than subcutaneous STS. Splenic haemangiosarcoma are more systemically aggressive, with microscopic or macroscopic systemic metastasis expected in 90% of cases at diagnosis. Histocytic sarcoma have a much more aggressive, early metastatic pattern. Brachial or lumbar plexus nerve root tumours have a different pattern of local invasion, extend proximally and distally along nerve roots and can invade the spinal cord." |
| image= ""> | | image= ""> |
| </WikiQuiz></center> | | </WikiQuiz></center> |