Persistent hypokalemia despite potassium supplementation for the past 5 months;clinically normal with no muscle weakness as long as on the supplement.
Abnormal BW: Alb 4.1, ALT 106, K+ 3.2; systolic BP 224, 211, 214; aldosterone level pending.
Case Study
Conn’s Syndrome in a 9-year-old, MN, DSH Cat
Image Interpretation
The left adrenal gland was enlarged, rounded, and hypoechoic to surrounding fat. The left adrenal measured 1.88cm x 1.2 cm at the cranial pole and 0.32 cm at the caudal pole. Upon the right approach to the left adrenal mass, visualizing the vena cava and phrenic vein, an early invasion appears to be present – extending approximately 7.0 mm into the phrenic vein and vena cava. The right adrenal gland measured3.0 mm in width, not pathological.
The kidneys were normal in size and contour with slight hypoechoic idiopathic medullary rim.
Outcome
-Left adrenal mass with early invasion
-Idiopathic medullary rim kidneys
-minor hair-type density in the stomach
Comments
The left adrenal mass appears resectable. Antihypertensives are warranted to reach systolic pressure of 160, followed by left adrenalectomy. Aldosterone levels are indicated. Hairball therapy is indicated
Clinical Differential Diagnosis
hyperaldosteronism
Sampling
Left adrenal mass from the right approach
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Left Adrenal Mass
Patient Information
Gender :
Male, Neutered
Species :
Feline
Type of Imaging : Ultrasound
Clinical Signs
- muscle weakness
Images
Blood Chemistry
- Albumin, High
- ALT (SGPT), High
- Potassium, Low
Clinical Signs
- muscle weakness
Special Testing
- Aldosterone level