Pheochromocytomas are rare tumors that originate from the adrenal medulla. They have been most commonly reported in dogs, horses, and cattle. Clinical signs associated with pheochromocytomas are nonspecific, and these tumors can be challenging to diagnose.

The symptoms of pheochromocytoma may not be noticeable in many dogs, because they are mild, intermittent, and can be mistaken for many other diseases and disorders. Some of the most common are diabetes, renal disease, hyperadrenocorticism, and hepatic disorders.

Jan 28, 2024 · Pheochromocytoma is a serious tumor in the adrenal gland, primarily affecting middle-aged to older dogs, leading to excessive adrenal hormone production. Common symptoms include weakness, weight loss, increased thirst and urination, collapse, and in …

Clinical signs associated with pheochromo-cytoma are often vague and intermittent, and may mimic more common disorders such as hyperadrenocortisism, diabetes mellitus, hepatic or renal disease, or other neoplasms.

These signs and symptoms include appetite loss, weight loss, panting, lethargy, collapse, elevated heart rate and high blood pressure. Many of the tumors are locally invasive into regional tissue and surrounding blood vessels.

Pheochromocytoma: The most common adrenal medullary tumor in dogs, pheochromocytoma occurs on the adrenal medulla and is most often a benign tumor that only needs treatment if it induces high blood pressure, rapid heartbeat, and a higher than normal internal temperature.

Nov 17, 2017 · Common signs to pheochromocytoma are not specific and include; anorexia, lethargy, dyspnea, seizure, polyuria, diarrhea, and arrhythmia have been seen. It is not uncommon to see

Pheochromocytoma (Pheo) is the second most common adrenal tumour in dogs. It is of neuroectodermal origin arising from chromaffin cells of the sympathoadrenal system. Clinical signs result from excretion of excessive amounts of catecholamines and rarely from the direct presence and space occupying nature of the tumour.

What are the symptoms of pheochromocytoma in dogs? Anorexia, weight loss, weakness, collapse, breathing difficulty, diarrhoea and vomiting are among the clinical signs we see. How is pheochromocytoma diagnosed in dogs? Imaging with a CT scanner or ultrasound, and examination of a biopsy are usually the best way to diagnose.

May 31, 2023 · Most cases of pheochromocytoma are initially asymptomatic and the tumor is identified at necropsy after the animal suddenly collapses. Symptoms are vague and nonspecific and may wax and wane. Most occur as a result of high blood pressure.