Page 22 - Atlas of Small Animal CT and MRI

Figure 1.1.10 Suppurative Rhinitis—Inflammatory Nasal Polyp (Feline) CT

13y MC Domestic Shorthair with a malodor-
ous, brown mucoid left‐sided nasal discharge.
Multiple dental extractions had been per-
formed 1 month prior to the CT scan. Multiple
teeth are missing, and there is osteolysis of
residual alveolar bone. Soft‐tissue opacity is
present within the left ventral nasal cavity
and adjacent left maxillary canine alveolar
cavity (a: asterisk). A pedunculated naso-
pharyngeal mass arises from the left nasal
cavity (b,c: arrow). The full extent of the mass
is appreciated in c, which includes a dorsal
plane view of the nasopharynx. The polyp
was excised at the time of rhinoscopy
(a) CT, TP (b) CT, TP (d: asterisk). Although not determined from
these images, an oronasal fistula was also
present at the site of the canine tooth
extraction.

(c) CT, DP (d) ES

Figure 1.1.11 Ossifying Inflammatory Nasal Polyp (Canine) CT
13y MC Golden Retriever with left‐sided
epistaxis. A well‐delineated, irregularly shaped
mineralized mass is present in the left nasal
cavity surrounded by uniform soft‐tissue opac-
ity (a). Nonuniform contrast enhancement of
the nasal soft tissues suggests some preserva-
tion of the turbinates and overlying mucosa
(b). The diameter of the left palatine foramen is
increased (a: arrow), and the nasal septum is
mildly deviated to the right. A well‐demarcated
mass was seen on rhinoscopic examination
(a) CT, TP (b) CT+C, TP
(d). Nasal biopsy revealed moderate diffuse
chronic active rhinitis with reactive bone
formation.

(c) CT, DP (d) ES
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