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Simple renal cyst. A renal cyst is a fluid collection in or on the kidney. There are several types based on the Bosniak classification. The majority are benign, simple cysts that can be monitored and not intervened upon. However, some are cancerous or are suspicious for cancer and are commonly removed in a surgical procedure called nephrectomy.
Renal dysplasia is a type of familial kidney disease characterized by abnormal cellular differentiation of kidney tissue. Dogs and cats with kidney disease caused by these diseases have the typical symptoms of kidney failure, including weight loss, loss of appetite, depression, and increased water consumption and urination. [ 1 ]
Cysts lined by a simple epithelium with a hobnail morphology, i.e. the nuclei of the cyst lining epithelium bulges into the lumen of the cysts, Ovarian-like stroma that has a: Spindle cell morphology, and has a; Basophilic cytoplasm. Cystic nephromas have an immunostaining pattern like ovarian stroma; they are positive for: Estrogen receptor (ER),
The enlargement of the kidney can be related to the degree of cyst formation. The cysts which come from the Bowmans space can also cause the kidneys to appear asymmetrical or misshapen. Cysts can cause injury by destroying nearby renal tissue [10] Familial GCKD can have enlarged or normal size kidneys. [6]
Lymphoma of the kidney presents as bilateral kidney enlargement and failure. If the lymphoma is located in the nose, the cat may have discharge from the nose and facial swelling. Lymphoma of the heart causes congestive heart failure , pericardial effusion , and cardiac arrhythmias .
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Dogs experience pain, too, but there is a difference: they can’t tell you what they are feeling. That’s why so many dental problems in dogs go unnoticed until they are severe.
The right kidney is more frequently affected than the left. In dogs, however, the parasite quite often remains in the abdominal cavity, which has less serious consequences for the dog than an infection of the kidney. The infected kidney is slowly destroyed by the parasite, which usually also perforates the renal pelvis in the process. [47]