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Bladder cancer in cats and dogs usually is transitional cell carcinoma, [1] which arises from the epithelial cells that line the bladder. Less often, cancer of the urinary bladder is squamous cell carcinoma , adenocarcinoma , or rhabdomyosarcoma .
The prognosis varies dramatically, depending on the type and stage at the time of treatment. However, the most common epitheliomas are very easily treated and rarely result in death. [ 2 ] The condition did, however, take the life of Scottish golfer Willie Dunn, Sr. in 1878 at a time when the ailment was likely not fully understood.
Four main hypotheses have been proposed for the cellular origins of carcinosarcoma, based largely on the pathology of the disease. [1] [3] First, the collision tumor hypothesis, which proposes the collision of two independent tumors resulting in a single neoplasm, based on the observation that skin cancers and superficial malignant fibrous histiocytomas are commonly seen in patients with sun ...
Cancer in cats can occur in any location or body system, [3] and most symptoms can be detected externally. [2] While each type of cancer has its own distinctive symptoms, most indicate their presence by the occurrence and the prolonged presence of any common symptom. [1] Some of the general symptoms of cancer in cats are: [3]
By staining the cells from a biopsy, a pathologist can determine whether the tumor is an adenocarcinoma or some other type of cancer. Adenocarcinomas can arise in many tissues of the body owing to the ubiquitous nature of glands within the body, and, more fundamentally, to the potency of epithelial cells. While each gland may not be secreting ...
Dysembryoplastic neuroepithelial tumour (DNT, DNET) is a type of brain tumor.Most commonly found in the temporal lobe, DNTs have been classified as benign tumours. [1] These are glioneuronal tumours comprising both glial and neuron cells and often have ties to focal cortical dysplasia.
[2] [3] It is the second most common type of kidney cancer, but accounts for only five to 10 percent of all primary renal malignant tumors. [4] Men and older people have a higher rate of urothelial carcinomas. Other risk factors include smoking and exposure to aromatic amines. [5] Treatment approaches depend on the stage and spread of the tumour.
Sclerosing epithelioid fibrosarcoma (SEF) is a very rare malignant tumor of soft tissues that on microscopic examination consists of small round or ovoid neoplastic epithelioid fibroblast-like cells, i.e. cells that have features resembling both epithelioid cells and fibroblasts. [1]