Many doctors recommend this test within 6 months after colorectal cancer surgery. If results are normal, you may not need another one for a year, and then every 3 years if your results stay normal. You can talk about the schedule with your doctor. A CEA test.
Mastoiditis is a bacterial infection of the mastoid bone. The mastoid bone, which sits behind the ear, consists of air spaces that help drain the middle ear. When the mastoid cells become infected or inflamed, often as a result of an unresolved middle ear infection (otitis media), mastoiditis can develop.astoiditis symptoms may include: 1  Fever, irritability, and lethargy. 2  Swelling of the ear lobe. 3  Redness and tenderness behind the ear. 4  Drainage from the ear. 5  Bulging and drooping of the ear (in acute mastoiditis).
From Wikipedia, the free encyclopedia. Mastoiditis is the result of an infection that extends to the air cells of the skull behind the ear. Specifically, it is an inflammation of the mucosal lining of the mastoid antrum and mastoid air cell system inside the mastoid process.The mastoid process is the portion of the temporal bone of the skull that is behind the ear which contains open, air-containing spaces.ome common symptoms and signs of mastoiditis include pain, tenderness, and swelling in the mastoid region. There may be ear pain (otalgia), and the ear or mastoid region may be red (erythematous).