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16 Cards in this Set
- Front
- Back
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Mammary gland is composed of: |
▫Connective Tissue▫ Ductular system – alveoli to streak canal▫ Secretory tissue |
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This is a modified sudorifeous (sweat) gland that starts to develop during puberty under the influence of estrogen and progesterone. |
Mammary gland |
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Location of mammary glands in cattle, sheep, goat, horses and whales. |
inguinal regions. |
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Location of mammary glands in primates and elephant |
thoracic region |
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Location of mammary glands in pigs and carnivores |
ventral surface of both thorax and abdomen |
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Hormones involved in the development of mammary gland |
✔Ovarian hormones:▫Estrogen - concerned with development of the ductile system at each estrus period and throughout pregnancy.▫Progesterone - acting with estrogen is required for full alveolar growth ✔Anterior Pituitary Gland:▫Prolactin▫ACTH▫Somatotropin▫TSH |
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3 key features of neoplasia |
1. Excessive tissue growth2. Lack of responsiveness to control mechanisms3. Lack of dependence on the continued presence of the stimulus |
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Proliferating neoplastic cells that constitute their ______. |
parenchyma |
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This is made up of connective tissue and blood vessels |
Stroma |
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This originally refers to any swelling but is currently almost exclusively refers to a neoplastic growth. |
Tumor |
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TRUE OR FALSE. Mammary tumors are common in female dogs and rare in male dogs and cats. |
True |
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Dog breeds most affected by mammary tumors |
poodles, dachshunds and spaniels |
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Cat breeds commonly affectef with mammary tumors |
Siamese or other oriental breeds and domestic short hairs are most often affected. |
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Signs and symptoms of mammary tumors |
✔ Palpable mass underneath the skin of abdomen – most common finding✔Single or multiple masses✔ Fixed to skin or body wall – malignant behavior or cancer✔ Discharge of mammary gland ✔ Ulceration of skin over a gland – superficial loss of skin + inflammation✔ Painful, swollen breast✔ Loss of appetite✔ Weight loss✔ Generalized weakness |
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Types of benign mammary tumor |
▫ Complex adenomas▫Simple adenomas▫ Fibroadenomas▫ Duct papillomas |
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Types of malignant mammary tumors |
▫ Osteosarcoma▫ Fibrosarcoma▫ Solid Sarcoma▫ Papillary cystic adenosarcomas |
