Proofread for Capitalization and Punctuation errors.

Carina was inspected at that time, which appeared sharp with no mucosal lesions noted. A 2% lidocaine was instilled over the carina. Right main stem bronchus was inspected next. Opening to the right upper lobe was inspected, however 2 areas of abnormality were detected. All 3 anterior, posterior, and apical, segments were visualized without any obstruction noted.

Thanks!

Run-on -- Opening to the right upper lobe was inspected, however 2 areas of abnormality were detected.

How will you fix it?

Unneeded comma in here -- All 3 anterior, posterior, and apical, segments were visualized without any obstruction noted.
Which one will you remove?

http://grammar.ccc.commnet.edu/grammar/index2.htm
Look up what you need in this index.

Carina was inspected at that time, which appeared sharp with no mucosal lesions noted. A 2% Lidocaine was instilled over the carina. The right main stem bronchus was inspected next. The opening to the right upper lobe was inspected; however, two areas of abnormality were detected. All three anterior, posterior, and apical segments were visualized without any obstruction noted.

Thanks!