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At the time the article was created Henry Knipe had no recorded disclosures.View Henry Knipe's current disclosures
At the time the article was last revised Daniel J Bell had no recorded disclosures.View Daniel J Bell's current disclosures
The upper zone is one of four arbitrary chest radiograph zones useful for describing the location of findings on a chest radiograph. Some radiologists consider the upper zone to include the apical zone.
- on frontal chest radiographs, the upper zone extends from the inferior margin of the clavicle to the superior aspect of the lung hilum on each side
- using the zonal terminology for the location of findings on CT is generally discouraged, as a more precise lobar +/- segmental site, can usually be reported
- conditions with upper lobe predominance (mnemonic)