Successful Management Using Conservative Resection with the Advancement Flap Method for a Large Trichoepithelioma on the Cauda in a Cat

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  • 尾に生じた大型の毛包上皮腫に前進皮弁を用いた保存的外科切除が有用であった猫の１例

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A 12.5-year-old, spayed female domestic shorthaired cat presented with an ellipsoid nodule, 8 ´ 10 cm in size on the cauda, which covered about 60% of the area on its perimeter. This nodule was not connected to the subcutis. The caudal vertebrae had no abnormality in an X-ray examination, and the noduleÕs margin was clear in an ultrasound examination. Purulent exudates with hemorrhage were observed, but no infectious agents were found in fungal and bacterial cultures. Cytology revealed small epithelioid cells with keratin materials, which suggested a benign follicular epithelial tumor. The owners insisted on avoiding amputation of the tail, therefore, plastic surgery advancement flap method using the skin at the base of nodule was selected. Moist healing was expected as a sequela. Histopathologic findings of the nodule were compatible with trichoepithelioma. The surgery site completely healed and became covered with regrowth hairs, and it has been disease free for 1.5 years.<br>

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