FNAC

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