This is a case of a large Soft Tissue Sarcoma on the lateral aspect of the right stifle. This a male dog, intact, previously diagnosed with a fast growing STS, now 4.5 cm. STS are of great local concern, especially on limbs as the surgical dose requires at least 3 cm in lateral and at least one deep unaffected fascial plane. This requirement produces numerous challenges for the surgical defect closure. In this case the lateral margins were of 3 cm and in the deep, one unaffected muscle layer was included. This produced a large defect which was closed with a large inguinal flank fold flap. The pathology report confirmed clean margins and the healing process was accompanied by local complications as persistent seroma, pain and 1-2 cm of distant marginal necrosis. In the end the flap was fully vital and the cosmesis and function were good.
Dr. Daniel Lescai