Superior to radiography in assessing infiltration or abnormalities of tissue architecture and assessing the surrounding structures for [[Neoplasia - Pathology#The Process of Metastasis|metastasis]]. Guided aspirates or biopsies may also be taken at this time, including lymph node sampling, to evaluate degree of systemic involvement. | Superior to radiography in assessing infiltration or abnormalities of tissue architecture and assessing the surrounding structures for [[Neoplasia - Pathology#The Process of Metastasis|metastasis]]. Guided aspirates or biopsies may also be taken at this time, including lymph node sampling, to evaluate degree of systemic involvement. |