Pedicled SCIP-based vascularized lymphnode and lymphatic vessels transfer (VLNT and VLVT) for deep lymphatic system reconstruction and dead space obliteration after medial thigh sarcoma resection: A case report.

Soft-tissue sarcomas represent a cohort of rare and heterogeneous malignant tumors that could affect various body parts, with a higher incidence in the lower extremity. When these tumors are surgically removed, both the superficial and deep lymphatic pathways could also be damaged and might require immediate reconstruction to prevent lymphatic complications. In the present report, we describe a case of a patient affected by a high-grade (G3) spindle cell pleomorphic rhabdomyosarcoma of the upper medial thigh. A 22 × 20 cm mass was removed with exposure of the deep femoral vessels and the great saphenous vein. After intraoperative indocyanine green lymphography, it was determined that the superficial lymphatic vessels were intact, but the deep lymphatic system was unavoidably damaged. As a reconstructive procedure, we performed a pedicled SCIP-based vascularized lymphatic vessel transfer and vascularized lymph node transfer to restore the deep lymphatic system and dead space obliteration. The procedure was successful, and no signs of lymphatic impairment were observed during the two-year follow-up period. We believe that this novel approach might be helpful in cases of large and profound defects that involve the deep lymphatic system. The combination of these two techniques could help restore deep lymph drainage, minimizing the risk of superficial system overload and lymphatic dysfunction. No other cases have been described so far employing the same approach. Considering the obtained results, this procedure might be worth further investigation.