Sequestration lung is best diagnosed by-
A pulmonary sequestration (bronchopulmonary sequestration)is a medical condition wherein a piece of tissue that ultimately develops into lung tissue is not attached to the pulmonary aerial blood supply.An angiogram/aeriogram has been considered vital in documenting the systemic blood supply,allowing definitive diagnosis as well as preoperative planning.
CT. scan
M.R.I.
Barium swallow
Angiography
Respiratory system