Endocrine System Complications and Malfunctions

Organ(s) Involved - Thyroid

Symptoms - Weight loss, increased drinking, increased appetite,

Vomiting, Diarrhea, Increased activity, Restlessness, Poor coat and Tachycardia

Possible Causes- Increase in thyroid hormone usually caused by a non-cancerous thyroid tumor called an adenoma

• Hyperthyroidism

• Hypothyroidism

• Hypocalcemia

• Pancreatic Insulin-Secreting Tumor (Insulinoma)

Organ(s) Involved - Thyroid and Pituitary Gland

Symptoms - Lethargy, Weakness, Weight gain, Hair loss, Inactivity

Possible Causes- Decrease in thyroid hormone production or the destruction of the thyroid gland by tumor or excess fat

• Hyperthyroidism

• Hypothyroidism

• Hypocalcemia

• Pancreatic Insulin-Secreting Tumor (Insulinoma)

Organ(s) Involved - Parathyroid and Kidney

Symptoms - Muscle tremors, Twitching, Loss of body, control, Muscle spasms, Decreased appetite and Changes in disposition

Possible Causes- Low blood calcium, Kidney failure and Hypoparathyroidism

• Hyperthyroidism

• Hypothyroidism

• Hypocalcemia

• Pancreatic Insulin-Secreting Tumor (Insulinoma)

Organ(s) Involved - Pancreas

Symptoms - Vision problems, Disorientation, Anxiety and Irritability, Weakness and Panting

Possible Causes- Tumors of the pancreas

• Hyperthyroidism

• Hypothyroidism

• Hypocalcemia

• Pancreatic Insulin-Secreting Tumor (Insulinoma)

Organs Involved - Pancreas, Brain Muscle, Fat cells, Liver Intestines Kidney

Sings and Symptoms - Excess urination, Excess thirst, Weight loss, Hunger, Exhaustion, Dry skin, Sores and infections

Possible Causes - Increase in sugar levels in the blood and Decrease in insulin production

• Diabetes Mellitus

• Diabetes Insipidus

• Pituitary Dwarfism

• Hypercalcemia

Organs Involved - Hypothalamus, Pituitary gland and Kidneys

Sings and Symptoms - Increased urination, Dilute urine, Increased thirst and drinking

Possible Causes - Lack of vasopressin hormone or Lack of antidiuretic hormone

• Diabetes Mellitus

• Diabetes Insipidus

• Pituitary Dwarfism

• Hypercalcemia

Organs Involved - Pituitary gland, Thyroid gland and Testicles

Sings and Symptoms - Longer body, Shorter legs, Enlarged tongue with under bite, Large head and Slow bone growth

Possible Causes - Heredity, Tumor, Infection or Cyst

• Diabetes Mellitus

• Diabetes Insipidus

• Pituitary Dwarfism

• Hypercalcemia

Organs Involved - Parathyroid and Adrenal glands

Signs and Symptoms - Increased thirst, Increased appetite, Lethargy, Depression, Abdominal pain and Constipation

Possible Causes - Cancer, Hypoadrenocorticism, -Hyperparathyroidism, Chronic renal failure

• Diabetes Mellitus

• Diabetes Insipidus

• Pituitary Dwarfism

• Hypercalcemia

Organs Involved - Pituitary gland, Adrenal gland

Signs and Symptoms - Polydipsia, Polyuria, Polyphagia, Potbelly and Obesity, UTI, Enlarged liver and Bruising

Possible Causes - Benign Pituitary tumor

• Cushing’s Syndrome (Hyperadrenocorticism)

• Atypical Cushing’s (Adrenal Sex Steroid Excess)

• Addison’s Disease (Hypoadrenocorticism)

• Pheochromocytoma

Organs Involved - Pituitary gland, Adrenal gland

Signs and Symptoms - Excessive drinking, Excessive urinating, Potbelly, Unexplained weight gain, Rear muscle wasting, Rear muscle weakness, UTI, Ear, feet and skin infections and/ or Enlarged liver

Possible Causes - Increased ACTH level, Enlarged liver, Enlarged adrenal glands (unilateral)

• Cushing’s Syndrome (Hyperadrenocorticism)

• Atypical Cushing’s (Adrenal Sex Steroid Excess)

• Addison’s Disease (Hypoadrenocorticism)

• Pheochromocytoma