Page 149 - Atlas of Small Animal CT and MRI
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Figure 1.10.11 Nasopharyngeal Undifferentiated Round Cell Tumor (Canine) CT
(a) CT+C, TP (b) CT+C, TP (b) ES
2y MC Labrador Retriever with progressive dyspnea. A well‐defined, uniformly contrast‐enhancing mass arises from the dorsal
nasopharyngeal wall and nearly completely obstructs the nasopharyngeal lumen (a,b: arrow). Endoscopically acquired biopsy (c) revealed
the mass to be a primitive undifferentiated round‐cell tumor.
Figure 1.10.12 Laryngeal Lymphoma (Feline) MR
(a) T1, TP (b) T2, TP (c) T1+C+FS, TP
(d) ) T1, TP (e) T2, TP (f) T1+C+FS, TP
11y MC Domestic Shorthair with voice change. There is a mass that is isointense on T1 and hyperintense and heterogeneous on T2
surrounding the pharynx and larynx. On contrast‐enhanced T1 images, the mass is intensely enhancing (c,f: arrows). The retropharyngeal
lymph nodes (f: asterisks) are moderately enlarged. The lymphoma was a large‐cell T‐cell type.
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