PMC5492790_01
(A-C) CT scans showing calcifications at longus colli origin anterior to C1/2, measuring about 14 mm in the superior-inferior diameter and about 7 mm in the anteroposterior diameter. (D-F) Prevertebral swelling and minimal fluid collection extending from skull base caudally to C4, maximally at the middle of C2 (up to 7 mm). Musculus longus colli on the right side is edematous especially at its insertion at C1 and C2 vertebrae. No other sites of inflammation in the ENT area. The findings correspond to right-sided longus colli tendinitis. (G-I) A follow-up MRI with the same sequences shows the obvious regression of the soft tissue swelling as well as the contrast enhancement. Note: the MRIs were done using two different devices and the mostly corresponding cuts were selected for the comparison between that at presentation and at follow-up.
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F1
C-reactive Protein (CRP) value of 7.8 mg/dL (normal range 0-5.0 mg/dL). Computed tomography (CT) and magnetic resonance imaging (MRI) were done and showed prevertebral soft tissue swelling and calcifications anterior to C1 at the insertion of the longus colli especially affecting the left side (Figure 1).
PMC5492790_02
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PMC5492790_05
MRI and CT scans of another case showing loss of cervical lordosis, even kyphotic cervical spine, and prevertebral fluid collection extending from skull base caudally to C5, maximally anterior to C4. The CT scan shows the faint small calcification in front of C1, mainly on the right side.
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F2
CRP. CT and MRT revealed calcifications at C1/2 level, prevertebral effusion, and soft tissue edema extending to the level of C4 (Figure 2).