Physical and Technical Essentials
There are confusing, and to a certain degree misleading, discrepancies between different countries, different medical centers, anddifferent specialties in the terminology concerning the sampling of specimens for cytology and histology. In the United States, samplingof specimens for cytology and histology are called biopsy: fine needle aspiration biopsy (FNAB or FNA biopsy), which gives a specimen for cytology, and coarse or core needle biopsy (CNB), which gives a specimen for histology. In Europe, most often anotherterminology is used: fine needle aspiration cytology (FNAC or FNAC cytology), cutting biopsy (CB), core needle biopsy (CNB),or just biopsy. Large needle biopsy (LNB) is also used by some authors. Some regard an 18-gauge needle as a fine needle.