PMC8433032_01
Laryngovideostroboscopy exam showing (a) fullness of the left false vocal fold compared to the right with mild posterior glottal gap and (b) subtle fullness of the left true vocal fold.
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fig1
Laryngovideostroboscopy revealed a left false vocal fold fullness, faster right mucosal wave, and a mild posterior glottal gap (Figure 1(a)). On abduction, there was a subtle fullness of the left midmembranous vocal fold (Figure 1(b)).
Axial (a) and coronal (b) CT without contrast demonstrating a mass arising from the left thyroid cartilage lamina with a thin calcified rim and a heterogeneous decreased attenuation center.
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A CT neck demonstrated a well-circumscribed, 5 x 8 x 9 millimeter mass arising from the left thyroid cartilage lamina with a thin calcified rim and a heterogeneous decreased attenuation center, suspicious for a chondroma versus low-grade chondrosarcoma (Figure 2).
Axial MRI images demonstrating a nonenhancing lesion with fatty marrow changes arising from the left thyroid cartilage. (a) T1 without contrast. (b) T1 fat saturation with contrast.
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An MRI neck showed a 5 x 7 millimeter left thyroid cartilage lesion with fatty marrow (Figure 3).
(a) Ovoid, vertically oriented mass within the lamina of the left thyroid cartilage. (b) Defect in thyroid cartilage after removal of mass. The inner perichondrium was left intact.
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The tumor was excised from the thyroid cartilage with clear margins, and the inner perichondrium was left intact (Figure 4).
A silastic block trimmed to fit into the thyroid cartilage defect and sutured in place using a series of interrupted 4-0 prolene sutures.
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The ovoid defect in the thyroid cartilage was reconstructed with a silastic block that was the same thickness and shape of the excised thyroid cartilage and was sutured to the remaining thyroid ala (Figure 5).