Basic Technique of Fine Needle Aspiration Cytology
Fine needle aspiration cytology (FNAC) is a major component of cytology. It is a simple, easy, economical, safe technique and can be done as routine office procedure. Presently many ancillary techniques can be done on FNAC material, and therefore it is possible to provide the exact diagnosis with the help of this technique. The loss of architecture of the tissue is the major limitation of this technique. In situ versus invasive lesions are often difficult to predict on FNAC material. Overall FNAC of both superficial and deep lesions are free of complications. The major contraindications of FNAC are aneurysms, haemophilia and coagulation disorders. The present chapter covers the advantages, disadvantages, contraindications and complications along with detailed techniques of superficial and deep-seared FNAC. The relative advantages and disadvantages of each technique of deep-seated lesions have also been discussed.
KeywordsFine needle aspiration cytology FNAC Limitations of FNAC Indications of FNAC Technique Fine needle sampling Fluoroscopy-guided FNAC USG-guided FNAC CT-guided FNAC Endoscopic ultrasound-guided FNAC Transrectal FNAC