Small Intestinal Pseudo-Obstruction in a 12 year old FS DSH cat

Case Study

Small Intestinal Pseudo-Obstruction in a 12 year old FS DSH cat

This 12-year-old FS DSH cat was presented with a short history of eating plants, vomiting hairballs, and anorexia that was non-responsive to hospitalization and intravenous medical treatment. Clinical exam revealed a doughy abdomen, and mild hypothermia. Blood analysis revealed mild neutropenia and hypoalbuminemia.

This 12-year-old FS DSH cat was presented with a short history of eating plants, vomiting hairballs, and anorexia that was non-responsive to hospitalization and intravenous medical treatment. Clinical exam revealed a doughy abdomen, and mild hypothermia. Blood analysis revealed mild neutropenia and hypoalbuminemia.

Sonographic Differential Diagnosis

Obstructive or partial obstructive pattern (due to focal functional or neurologic ileus, foreign body, infiltrative disease not evident on ultrasound).

Image Interpretation

This is an example of an obstructive pattern. There is a hyperechoic sound absorbing structure within the lumen and dilation of the small intestine proximal to the object and empty small intestine distal to the object.

DX

Small intestinal pseudo-obstruction

Outcome

The patient expired due to cardiac arrest at surgical laparotomy with no visible obstruction. Variable areas of hypoxic intestine were noted during surgery.

Comments

This is an example where there was an obstructive pattern created on ultrasound that was not due to an actual physical object as suspected from the images. Thus the labeling of this case is as a pseudo-obstruction. This type of ultrasound pattern can be caused by focal non functional portions of bowel with resultant areas of dilated small intestine and empty small or large intestines. Luminal ingesta can often be mistaken as a sound absorbing foreign body. Regardless, given the clinical presentation the choice to perform an exploratory laparotomy was justified due to lack of response to medical therapy.

Clinical Differential Diagnosis

GI pathology – Plant toxicosis, trichobezoar, protein losing enteropathy, IBD, gastric ulceration, dietary indiscretion, neoplasia; pancreatic pathology – pancreatitis

Sampling

No biopsies were performed. (See outcome notes.)

Patient Information

Patient Name : Firecracker L
Gender : Female, Spayed
Species : Feline
Type of Imaging : Ultrasound
Status : Complete
Liz Wuz Here : Yes
Code : 04_00086

Clinical Signs

  • Anorexia
  • Vomiting

Exam Finding

  • Doughy Abdomen
  • Hypothermia

Images

Firecracker_image_1__02102010083505

Blood Chemistry

  • Albumin, Low

CBC

  • Neutrophils, Low

Clinical Signs

  • Anorexia
  • Vomiting
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