ArticleSurgical case reports2026
Laparoscopic Resection of a Diaphragmatic Phrenic Neurilemmoma Compressing the Suprahepatic Inferior Vena Cava Following Thoracoscopic Exploration: A Case Report.
Article in Surgical case reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionSurgical resection of tumors compressing the suprahepatic inferior vena cava (IVC) is challenging, as such lesions may require vascular resection, reconstruction, or extracorporeal circulation. We present a case of a diaphragmatic phrenic neurilemmoma severely compressing the suprahepatic IVC and right hepatic vein, which was successfully resected laparoscopically with both thoracoscopic and laparoscopic assessment. CASE PRESENTATION: A 54-year-old woman was referred for evaluation of a thoracic mass detected during a health check-up. Enhanced CT revealed a 2.7-cm, well-circumscribed, heterogeneously enhancing round tumor compressing the suprahepatic IVC and right hepatic vein. Thoracoscopic exploration suggested that the tumor was not intrathoracic, and the right diaphragmatic nerve was identified near the lesion. Laparoscopic resection was then performed with preparation for possible open conversion. After establishing pneumoperitoneum, 4 additional ports were inserted. Dissection of the falciform and coronary ligaments exposed a well-encapsulated tumor originating from the diaphragm. The inferior diaphragmatic vein was transected using ultrasonic shears. The tumor was carefully dissected from the diaphragm without invasion into the IVC or hepatic vein. Complete resection was achieved without removal of adjacent organs, including the diaphragm. The specimen was retrieved via the umbilical incision. Operative time was 54 min, and blood loss was 2 mL. The postoperative course was uneventful. Histopathology revealed benign spindle cells arranged in a storiform pattern, confirming a benign neurilemmoma.
conclusionsLaparoscopic resection of diaphragmatic phrenic neurilemmoma compressing the suprahepatic IVC can be safe and feasible when combined with careful intraoperative assessment. Thoracoscopic evaluation and preparation for potential vascular involvement are crucial to guide safe resection and manage possible adhesion or invasion.
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