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Inguinal flank fold flap used for reconstruction after a large STS excision in a dog

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.

1. View of a large STS in a dog
2. View of the 4.5 cm STS excised with 3 cm lateral margins
3. View of the surgical defect after STS excision including deep muscle layer and the harvesting incisions for the inguinal flank fold flap used for reconstruction
4. Closure after the inguinal flank fold flap is transposed over the recipient bed.
5. Complete healing after STS excision and reconstruction with inguinal flank fold flap

Dr. Daniel Lescai

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