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surgical lectures
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Dr. Hiwa Omer AhmedAssistant Professor
Expanded FNAC
• flow cytometry,• immunohistochemistry
Needle types 25-18
New; pistol with needle
pistol with needle
Slides
Originally for breast masses
NOW from skin to deepest viscera
Thyroid
Intra-buccal lesions
Tongue lesions
This technique uses a thin needle to obtain a sample of cells from an abnormality such as a lump
Procedure conti.
• FNA was performed using a 10-20 cm3 disposable syringe attached to a 22-gauge needle. The needle was allowed to move back and forth into different parts of the tumour site several times before withdrawal.
FIXATION & STAINING
The two different methods of staining and fixation are,1.air dried MGG stains 2.wet fixed Pap smears
FNAC + US
FNAC + CT
FpNAC + MRI
Friable tumors & cysts
H&E staining
M.M.
RESULTS
1. Traumatic2. Pus3. Reactive hyperplasia4. Lymphocytosis5. Lymphoblast6. Sq.C.C.7. Adenocarcinoma
BENIFITS
• Fine Needle Aspiration Cytology is safer• Typically less painful for the patient than other
procedures which involve an incision or take a core of tissue with a larger, cutting needle.
• A diagnosis can often be made more rapidly with an FNA, generally within 24 hours, depending on what special tests must be performed on the aspirated cells.
• Fine needle aspiration is less expensive than surgical biopsy.
• FNA does not cause scarring which may interfere with subsequent surgery or radiologic studies.
• FNA is an excellent technique for diagnosing many tumors and infectious processes