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What causes the band like pattern in the trachea?
Tracheal cartilage ring calcifications.
Dense tracheal ring calcifications (anteriorly overlying the trachea) and nuchal ligament (posterior at the C4-C5 level) calcification are present.
Moderate degenerative spine and disc disease is noted in the cervical spine mainly centered at the C5-C6 level with disc space narrowing and anterior osteophytosis.