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Labrador cross with mass on antebrachium (view source)
Revision as of 17:31, 28 September 2012
, 17:31, 28 September 2012no edit summary
<center><WikiQuiz
<center><WikiQuiz
questionnumber="1"
questionnumber="1"
question=""
question="What would be your next step?"
choice1="Excisional biopsy of the mass"
choice1=""
choice2="Incisional biopsy of the mass using a Tru-Cut biopsy needle under sedation"
choice2=""
choice3="Incisional biopsy, taking a wedge of tissue from the edge of the lesion under general anaesthesia, including a small section of grossly normal tissue, in a way that does not compromise further resection under general anaesthesia."
choice3=""
choice4="FNA cytology in-house"
correctchoice="4"
correctchoice="4"
feedback1="'''Incorrect'''. This is definitely not the way to proceed. Revise principles of surgical oncology."
feedback1=""
feedback2="'''Incorrect'''. Not a bad choice, but as the mass is so large and the sample is so small, the sample may be friable and necrotic, leading to difficulty in interpretation, so this should not be your first option. It would be best to perform a fine-needle aspirate (FNA) before histopathology, in case a diagnosis can be reached using cytology only (e.g. lipoma, mast cell tumour, abscess)."
feedback2=""
feedback3="'''Incorrect'''. Correct technique for a histopathological diagnosis, including an idea of behaviour. However, it would be best to perform FNA before histopathology, in case a diagnosis can be reached using cytology only (e.g. lipoma, mast cell tumour, abscess)."
feedback3=""
feedback4="'''Correct'''. It is best to perform FNA before histopathology, in case a diagnosis can be reached using cytology only (e.g. lipoma, mast cell tumour, abscess.) The FNA reveals blood only, but suspicion of sarcoma is increased, as sarcomas do not exfoliate cells readily and it is common to aspirate blood with soft-tissue sarcomas. Abscess and lipoma are ruled out, and a mast cell tumour is unlikely. You proceed to incisional biopsy (technique as described in option 3)."
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