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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]
The symptoms depend on the tumor's location and degree of invasion. For example, tumors in the gastrointestinal tract may cause vomiting, diarrhea, or weight loss. Tumors in the mouth may cause bad breath, difficulty swallowing, or lack of appetite. Tumors arising in the peripheral nerves may cause pain, lameness, or neurological symptoms.
Spindle cell lipoma is most frequently located in the upper back, shoulder, or posterior neck subcutaneous layer. [3] Nonetheless, reports of it occurring in the mediastinum , hypopharynx , larynx , anterior neck, suprasellar region, esophagus , nasal vestibule , tongue, floor of mouth, vallecula, parotid gland , and breast have been made. [ 4 ]
Spindle cell sarcoma is a type of connective tissue cancer. The tumors generally begin in layers of connective tissue, as found under the skin, between muscles, and surrounding organs, and will generally start as a small, inflamed lump, which grows in size. At first, the lump is, small in size, as the tumor exists in stage 1, and will not ...
The cells have large cytoplasmic lipid droplets interspersed throughout. [4] [5] Myxoid variant: Loose, basophilic matrix, with thick fibrous septa, and foamy histiocytes; Lipoma-like variant: Univacuolated lipocytes, with only isolated hibernoma cells; Spindle cell variant: Spindle cell lipoma combined with hibernoma
The histopathological appearance of DDL tumors (see Fig. 2 in the below Histopathology of liposarcomas section) varies widely but most frequently exhibits features of undifferentiated pleomorphic sarcomas (which are tumors densely populated with variably sized and shaped cells containing variability sized and shaped nuclei) or spindle cell ...
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 ...
Furthermore, multinucleated large cells with radically positioned nuclei in a "floret-like" pattern are strewn among the spindle cells. The histological spectrum is rather diverse, ranging from a tumor that primarily consists of spindle cells with only a few fat cells to a tumor that resembles an average lipoma with few spindle cells ...