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422  Atlas of Small Animal CT and MRI


              Figure 4.3.17  Esophageal Spindle Cell Sarcoma (Canine)                                      CT





















             (a) CT+C, TP                     (b) CT+C, TP                     (c) CT+C, TP




















             (d) CT+C, SP                     (e) ES
             12y FS Golden Retriever with a 1‐month history of vomiting or regurgitation. Images a–c include the caudal thorax and are ordered from
             cranial to caudal. The caudal thoracic esophagus is mildly gas and fluid distended (a: arrowhead). Further caudally, a partially mineralized
             soft‐tissue attenuating mass fills the esophageal lumen near the gastroesophageal junction (b–d: arrowhead). The mass is visualized as an
             eccentrically positioned mural lesion on an endoscopic examination (e). Excisional biopsy revealed the mass to be a spindle cell sarcoma
             arising from the esophageal wall near the gastroesophageal junction. The relatively thicker esophageal wall seen in image b (arrow) was
             likely due to esophagitis that was also documented microscopically.





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