PMC3031238_01
Before and after chemoradiotherapy. (a) Fiberoptic endoscopy showing a neoplastic lesion in the left pyriform recess. (b) CT showing a tumor occupying the left pharyngeal cavity and infiltrating the thyroid cartilage. (c) CT performed after the completion of chemoradiotherapy, showing no evidence of neoplastic lesions.
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F1
At his initial visit to our department, laryngopharyngeal fiberoptic endoscopy revealed a neoplastic lesion in the left pyriform recess (Figure 1a). Pathologic examination of a biopsy specimen revealed a poorly differentiated squamous cell carcinoma (SCC), and contrast CT showed a tumor occupying the left pharyngeal cavity and infiltrating the thyroid cartilage (Figure 1b). Pathologic examination showed no obvious presence of remaining tumor, and CT showed no obvious neoplastic lesions (Figure 1c).
Follow-up CT results. (a) A suggestive space-occupying lesion in the right lateral pharyngeal wall at the level of the epiglottis, and (b) a suggestive circumferential space-occupying lesion in the mucosa and airway constriction at the level of the thyroid cartilage.
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F2
Although we observed swelling of the surrounding soft tissues and segmentation or collapse of the thyroid cartilage, we did not observe defluxion of the arytenoid cartilage or abnormal gases contacting the cartilage (Figure 2a,b).
CT results after administration of steroids and antibiotics. These show the disappearance of space-occupying lesions initially suspected as tumor recurrence at the levels of the (a) epiglottis and (b) thyroid cartilage.
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F3
Moreover, the space-occupying lesion, which had been suspected as being tumor recurrence, had disappeared (Figure 3a,b).