What question did this study set out to answer?

This report aims to document an unusual case of adrenal hemorrhage linked to an Addisonian crisis in a dog.

April 22, 2026Veterinary Radiology & Ultrasound0 citations

Vena Caval Hematoma Secondary to Adrenal Hemorrhage From an Addisonian Crisis in a Dog

KLKira Lin EHElizabeth Huynh AVArathi Vinayak

Key Points

This report aims to document an unusual case of adrenal hemorrhage linked to an Addisonian crisis in a dog.
Case evaluation of an 11-year-old American Staffordshire Terrier for Addisonian crisis.
Abdominal CT scans were performed at two separate instances to assess adrenal health.
Observation of the adrenal gland mass and subsequent changes over one year.
Initial abdominal CT revealed an invading mass from the right adrenal gland into the vena cava.
A follow-up CT scan showed the right adrenal mass had resolved, with both glands now atrophied.
This case is the first to document adrenal hemorrhage linked to an Addisonian crisis with imaging evidence.

Abstract

An 11-year-old spayed female American Staffordshire Terrier was evaluated for an Addisonian crisis. Abdominal CT scan revealed a mass-like lesion arising from the right adrenal gland and invading into the vena cava. The patient was treated for an Addisonian crisis, and no further treatment for the right adrenal gland mass was pursued by the clients. The patient presented 1 year later for re-evaluation of the right adrenal gland mass, and an abdominal CT scan was performed, which showed the previous right adrenal gland mass had resolved, and both adrenal glands were now atrophied. Adrenal hemorrhage can occur following an Addisonian crisis, and this is the first case report with imaging studies documenting this phenomenon.

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