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Cancer in cats can occur in any location or body system, [3] and most symptoms can be detected externally. [2] While each type of cancer has its own distinctive symptoms, most indicate their presence by the occurrence and the prolonged presence of any common symptom. [1] Some of the general symptoms of cancer in cats are: [3]
Cognitive dysfunction syndrome in dogs is an established diagnosis, but there has been limited research for cats and treatment options are limited. [13] Drugs used for treatment of the disease have been approved for use in dogs. However, they are used off-label in treatment of cats. [1] Early diagnosis improves results of long-term treatment. [6]
Feline spongiform encephalopathy (FSE) is a neurodegenerative disease that affects the brains of felines. This disease is known to affect domestic, captive, and wild species of the family Felidae. [1] Like BSE, this disease can take several years to develop.
For the diagnosis, brain scans (such as MRI) should be done to rule out other potential causes. Specialty: Neurology: Symptoms: Headache, vision problems, ringing in the ears with the heartbeat [1] [2] Complications: Vision loss [2] Usual onset: 20–50 years old [2] Risk factors: Hypervitaminosis A, obesity, tetracyclines [1] [2] Diagnostic method
Removal of tumor tissues helps decrease the pressure of the tumor on nearby parts of the brain. [17] The main goal of surgery is to remove as much as possible of the tumor mass while preserving normal brain function, and to relieve the symptoms caused by the tumor such as headache, nausea and vomiting. [18]
Optic nerve sheath meningiomas (ONSM) are rare benign tumors of the optic nerve. 60–70% of cases occur in middle age females, and is more common in older adults (mean age 44.7 years). It is also seen in children, but this is rare. The tumors grow from cells that surround the optic nerve, and as the tumor grows, it compresses the optic nerve.
Lymphoma is the most common malignancy diagnosed in cats. [22] Lymphoma in young cats occurs most frequently following infection with feline leukemia virus (FeLV) or to a lesser degree feline immunodeficiency virus (FIV). These cats tend to have involvement of lymph nodes, spine, or mediastinum.
Feline hypersomatotropism is usually diagnosed in elderly cats. The average age of diagnosis is between 10-11 years with a range of 4-17 years. [1] The age range of dogs reported with growth hormone secreting tumours is between 7-10 years.