PMC7293740_01
Sagittal (a), dorsal (b), and axial (c) CT images in soft tissue window illustrating a soft tissue/fluid dense material (white arrows) in both ventral nasal passages, slightly more in the right side, beginning at the second maxillary premolars. At the caudal third of the hard palate, the nasopharynx becomes completely occluded by the mass structure (best seen on the axial view (c)). No destruction of the ethmoturbinates is identified, and the cribriform plate is intact. The sinuses are unaffected.
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fig1
There was no turbinate destruction or boney lysis appreciated on the CT (Figure 1).
Intraoperative imaging showing the mass (white arrow) being elevated from the nasopharynx via ventral rhinotomy prior to en bloc resection at its stalk. The dog is in dorsal recumbency with rostral being the bottom of the photo.
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fig2
The approximately 4 cm x 2 cm mass had a stalk that extended dorsally and rostrally that appeared to be attached to the nasal mucosa (Figure 2).
Ulcerated polypoid mass from nasal mucosa. The mass is composed of a fibrovascular core containing numerous blood-filled sinusoidal spaces, a few of which also contained a thrombus.
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fig3
The core contained numerous blood-filled sinusoidal structures, a few of which also contained a thrombus (Figure 3).