PMC3542898_01
Lateral neck radiographic image of a chicken bone embedded in the retropharyngeal space (a) and after endoscopic removal of foreign body (b).
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fig1
A lateral radiographic image of the neck demonstrated a foreign body in the retropharyngeal region at the level of 7th cervical vertebral bone (Figure 1).  A repeat radiograph done 48 hours after the procedure showed the absence of foreign body (Figure 1).
PMC3542898_02
Lateral neck radiographic image (barium swallow study) of a patient who developed retropharyngeal abscess secondary to fish bone ingestion trauma.
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fig2
The lateral radiograph showed retropharyngeal thickening (Figure 2) and surgical consultation was made.
PMC3542898_03
Lateral neck radiographic image of a foreign body in the retropharynx (a) and immediately after endoscopic removal (b).
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fig3
The lateral radiograph of the neck showed a foreign body in the retropharyngeal space (Figure 3), which was removed by the consulting otolaryngologist.
A lateral photograph demonstrating the central neck fullness secondary to retropharyngeal and neck inflammation (a). The same patient's radiographic image showing a significant retropharyngeal abscess (b).
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fig4
She was discharged home on oral antibiotics but returned to the hospital after a week of worsening odynophagia, fever, and central painful neck fullness (Figure 4).
PMC3542898_04
A photograph demonstrating the central neck swelling (a). Lateral radiograph of the same patient showing extensive retropharyngeal thickening with anterior hyperdensity.
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fig5
A swelling, with overlying mild erythema, was noted in the central portion of her neck, around the area of the thyroid cartilage (Figure 5). Radiographic image of the neck demonstrated retropharyngeal thickening with anterior extension (Figure 5). 
PMC3542898_05
Lateral neck radiographic image of a patient who developed retropharyngeal abscess secondary to fish bone ingestion trauma.
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fig6
Radiograph showed a foreign body embedded at the upper posterior cervical esophagus with significant retropharyngeal thickening (Figure 6). 
A photograph of the neck wound of a patient who underwent transcervical drainage procedure for a retropharyngeal abscess (a). A small fish bone was removed through the wound (b).
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fig7
On the second postoperative day, the foreign body (fish bone), along with some discharge, was elicited through the partially open neck wound (Figure 7).