◊ 4-Tumors ◊
Tumors or neoplasm are those benign or malignant over growths that can be observed anywhere over the body of the animal. Malignant tumors usually affect elder animals (squamous cell carcinoma) while benign tumors affect younger animals (warts).
Classification and characters: -
Tumors are classified into benign or malignant, and solitary or multiple tumors
Doesn’t recur after excision
Recur after excision
Slower in growth rate
Doesn’t show ulceration
Localized tumor, doesn't infiltrate or invade surrounding tissue
Invade surrounding tissue
Have definite shape
Have no definite shape
Doesn’t adhere to the skin
Adhere to skin
Has no metastasis
Fibroma, lipoma, myoma, or osteoma
Angioma, or lymphangioma
2-Clinical signs and involvement of LN
4-Histopathologic examination confirms diagnosis and determines nature of the tumor
Pedunculated tumors can be removed by ligation with elastic or rubbery materials and the induced wound is dressed with antiseptic solution. The aim of use of ligature is to close the blood supply of the tumor and to hasten its separation and sloughing.
B-Hot red iron
It controls bleeding, and causes necrosis and sloughing of the stump of the tumor.
The skin is incised and the chain is applied on the incision.
It is a forceps with excavated jaws and sharp borders used for removal of warts
Like arsenal paste, nitric acid, acetic acid, salicylic acid, or liquor of potassae
Generally, the success rate of treatment of malignant tumors is very low
The aim of use of this method is the destruction of malignant cells by gamma radiation. Anyway this technique is better to be used in adjunction with surgical de-bulking.
It depends up on two cycles of freezing and thawing. Freezing predisposes to ice crystals formation within the cell, and the volume of these crystals is larger than the volume of water leading to rupture of cells.
By using BCG that is injected 1 ml/cm3 once a week for 4 weeks. Severe reaction and necrosis of the tissue occurs. This technique is used for treatment of sarcoma in equine.
Alone, it is of no value as there is high probability of recurrence of the tumor