A 9-year-old neutered female Pug with a 2-week history of pancreatitis was presented for dyspnea, icterus, and intractable vomiting. Sonographically, the gallbladder, intrahepatic bile ducts, and common bile duct were distended. The pancreas was hypoechoic with hyperechoic peripancreatic fat. A mildly heterogeneous intramural mass was present in the muscularis layer of the descending duodenum. A presumptive diagnosis of pancreatitis and smooth muscle tumor of the duodenum leading to common bile duct obstruction was made. The dog died despite supportive care. Necropsy examination confirmed the presence of pancreatitis and an intramural duodenal hematoma. r
An 11-year-old male Miniature Dachshund was referred for acute neurological deficits in
the pelvic limbs. T2-weighted magnetic resonance imaging revealed that the spinal cord at
the L1-2 intervertebral disc space was heterogeneously hyperintense in the sagittal plane
and was mildly compressed from the ventral side by a small hypointense mass in the
transverse plane. However, the lesion showed mass enhancement and severe spinal cord
compression on post-contrast T1-weighted imaging. On three-dimensional myelography, a
“golf tee sign” was observed around the mass. Therefore, we diagnosed an intradural
extramedullary lesion. The mass was surgically removed and histologically diagnosed as a
hemangiosarcoma. The “golf tee sign” observed on magnetic resonance myelography may be
useful for distinguishing intradural extramedullary masses from intramedullary masses.
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