Molly, an The referring veterinarian had aspirated the mass, and cytology was consistent with anal sac adenocarcinoma Figure 1. Figure 1 — Cytologic examination revealed sheets of closely adherent epithelial cells with uniform large nuclei.
Objective —To characterize the signalment, clinical signs, biological behavior, and response to treatment of carcinoma of the apocrine glands of the anal sac in dogs. Animals — dogs with histologically confirmed carcinoma of the apocrine glands of the anal sac. Procedure —Data on signalment, clinical signs, and staging were reviewed and analyzed along with treatment modality for potential association with survival time.
Monty and his family had an initial consultation with Professor Nick Bacon who examined Monty and identified sublumbar lymphadenopathy on rectal examination. The treatment plan started with a contrast CT scan of the thorax, abdomen and pelvis, to help with surgical planning and tumour Staging Using diagnostic tests to discover whether the tumour has spread, and if so, to where. The scan confirmed his hypogastric lymph nodes were enlarged, with additional concern over the sacral lymph nodes.
Dogs and cats can function normally without these scent glands. Cancer can develop in the anal sac glands in dogs, but rarely in cats. In most cases, this tumor affects only one anal sac, but occasionally both left and right sacs are affected.
Apocrine gland adenocarcinoma is the most common type of anal sac tumor. Tumors of the anal sacs are a serious but uncommon problem. They tend to invade surrounding tissues and metastasize spread to distant tissues even when the primary tumor is very small.
Malignant perineal tumors in dogs: the contribution of computed tomography for staging and surgical planning. Carla A. Ana Carolina C.
Anal sac gland carcinoma also known as apocrine gland carcinoma of the anal sacs and anal sac adenocarcinoma is a malignant tumour of the anal sacs of the dog. It is a relatively uncommon tumour but it is seen with increased frequency in English Cocker Spaniels in particular and other spaniels to a lesser degree. The anal sacs are 2 scent glands located either side of the anus in the dog.
The perianal region of the dog contains several glands, specifically apocrine sweat glands, which are normally responsible for emptying their secretions into the lumen of the anal sacs. Anal sac apocrine gland adenocarcinoma is locally invasive and typically affects one anal sac; however, bilateral tumors can occur. Figure 1: Apocrine gland adenocarcinoma of the left anal sac. Patients with hypercalcemia of malignancy often present with polydipsia, secondary polyuria, anorexia, lethargy, or vomiting.
Skip to search form Skip to main content. Parry A perianal mass in a year-old domestic shorthair cat with a history of a firm, painful swelling in the left ventrolateral perianal region was surgically excised and submitted for light microscopic evaluation. Histologically, this was a poorly demarcated, unencapsulated, multilobulated neoplasm that invaded surrounding perirectal skeletal muscle bundles. View PDF.