Types of Biopsy 0.0 / 5 ? Veterinary NursingPathologyUniversityNone Created by: Laura_BryantCreated on: 01-05-17 11:57 Fine Needle Aspirate Procedure under aseptic conditions Insert needle and withdraw plunger repeatedly Express onto a microscope slide Ideal for: superficial masses, as an initial diagnostic technique 1 of 8 Impression Smear Place a microscope over the tumour Only thin smear needed Stain with diffquick Suitable for superficial / open tumours 2 of 8 Needle Core Biopsy GA required Invasive Ultrasound Guided Make stab incision and insert biopsy needle, advance cutting cannula ideal for internal tumours 3 of 8 Bone Marrow Aspiration Used to take aspiration on boney prominences Greater tubercle of proximal humerus Iliac crest of pelvis Trochanteric fossa of femur Jamshidi needle used to get bone core aspiration Requires skill 4 of 8 Punch Biopsy Used with superficial tumours Anaesthetic required Push punch onto area and twist, then cut attached tissue Push sample onto tongue depressor for fixing 5 of 8 Incisional/ Wedge Biopsy Performed on suspected malignant tumours Sx removed wedge of tumour with area of normal skin Risk of dissemination Plan removal for future Sx 6 of 8 Excisional Biopsy Sx removal of all identifiable tumour and margin of healthy tissue Curative for benign tumours 1st Sx incision = best chance of cure 7 of 8 Preservatives 10% formalin no more than 60mls in sample being sent 10x more fixative than volume of sample large samples sliced into 5mm parts 8 of 8
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