Bethesda system

The Bethesda system (TBS) is a system for reporting cervical or vaginal cytologic diagnoses, used for reporting Pap smear results. It was introduced in 1988 and revised in 1991, 2001, and 2014. The name comes from the location (Bethesda, Maryland) of the conference that established the system. The Bethesda system (TBS) is a system for reporting cervical or vaginal cytologic diagnoses, used for reporting Pap smear results. It was introduced in 1988 and revised in 1991, 2001, and 2014. The name comes from the location (Bethesda, Maryland) of the conference that established the system. Additionally, the Bethesda system is used for cytopathology of thyroid nodules.