Classification

CLASSIFICATION

Tumorigenesis

  • About 50 % of all the mammary tumors in dogs are classified as benign and the most common being fibro-adenoma.
  • The malignant tumors reported at this institute have been classified as adenocarcinoma, papillary cystic adenocarcinoma and mixed malignant tumors. Sarcoma is reported very rarely.
  • In cats the most common tumor reported is adenocarcinoma. These tumors commonly metastasize primarily to the regional lymph node and the thorax. Secondary metastasis is found in liver kidney, spleen, ovary, heart and diaphragm.

Mammary Acinar Cells

Diagnosis

mammary_tumour

Mammary tumor

Signalment and History

Physical Examination

  • Cytology
  • Radiography
    • Thorax Dorsoventral and abdomen for metastatic lesions. If the appendicular skeleton is involved it may also be included for radiography
  • Ultrasound

FNAB

  • Biopsy
    • This includes Fine needle aspiration cytology (FNAC) and incsional biopsy. FNAC gives a tentative pattern of the nature of tumor and confirmative diagnosis is made on a histopathological examination.
Last modified: Saturday, 2 July 2011, 5:04 AM