RETALHO SUBDÉRMICO DE TRANSPOSIÇÃO ASSOCIADO COM ENXERTO CUTÂNEO EM MALHA APÓS A RESSECÇÃO DE NEOPLASIA MESENQUIMAL NO TARSO DE CÃO – RELATO DE CASO

Abstract

Reconstructive surgery has been used in small animal surgical clinics due to its use in tissue reconstruction, such as flaps and grafts, to correct skin defects. This study aims to report the use of a plastic technique associated with electrochemotherapy after excision of mesenchymal neoplasm in a dog. A 6-year-old female dog was treated at the veterinary hospital with a cutaneous nodule on the right pelvic limb. This nodule had recurred after previous treatment. Complementary tests were performed, which indicated thrombocytopenia, followed by hyperproteinemia and leukopenia. Serology for hemoparasitosis was performed and confirmed the diagnosis of ehrlichiosis, for which prior treatment was instituted. At the end, the patient presented a good general condition and the alterations had normalized. Therefore, a cytology of the lesion was performed, which suggested malignant mesenchymal neoplasm, and presented absence of metastases confirmed by imaging tests. The surgery was planned after a cardiological evaluation, with wide excision of the nodule and electrochemotherapy on the bed. At the end, a subdermal transposition flap was created. However, due to slight tension to promote synthesis of the donor bed, a mesh skin graft was performed to synthesize the donor bed of the flap. After synthesis of the surgical wound, a compressive dressing was applied and changed every 48 hours. The postoperative period showed favorable healing after 21 days, with no complications. Histopathological analysis confirmed spindle cell sarcoma, and oncological follow-up is currently ongoing. The report highlights the effectiveness of the combination of transposition flap and skin graft for correction of extensive defects after neoplasm excision, promoting good recovery and favorable healing.