Primary Hemangiopericytoma Arising in Extralobar Pulmonary Sequestration: A Coincidence or Two Rare Disorders?

[Treatment of a patient with giant solitary fibrous tumor of the left hip]

The authors report surgical treatment of a 59-year-old female with a giant solitary-fibrous tumor of the left hip. Previous excision of hip hemangioma was performed in 2016. Recurrent tumor with fast growth has occurred since 2018. The neoplasm consisted of 2 tumors connected by vascular structures. CT revealed soft tissue neoplasms in the upper third of the left thigh (anterior, medial and dorsal regions). Large tumors with an isthmus along the inner surface had tuberous contours and internal septa. The last ones and walls accumulated contrast agent. No structural damage to femoral muscles was observed. The patient underwent resection of tumor and vascular ligation (great saphenous vein and its tributaries along the anterior surface, arteries from the deep femoral artery system along the posterior surface of tumor). There were no early postoperative complications. There are no complaints within 6 month after surgery. There is no lower limb dysfunction.

The clinical management of extralobar pulmonary sequestration in children

INTRODUCTION

The treatment of extralobar pulmonary sequestration (ELS) remains divergent. This study aims to demonstrate the characters of ELS in children for optimal clinical management in the future.

MATERIAL AND METHODS

A retrospective analysis was conducted for ELS patients' treatment in our center from January 2013 to April 2020.

RESULTS

In total, 85 patients were included, containing 70 upper-diaphragmatic, 7 intra-diaphragmatic, and 8 infra-diaphragmatic ELS. Eight patients' pathology results showing inflammation without symptoms preoperation and two patients had chest pain for torsion. All the upper-diaphragmatic and intra-diaphragmatic ELS patients accepted thoracoscopic surgery resection. The intraoperative operation time and blood loss volume of intra-diaphragmatic ELS were significantly more than that of the upper-diaphragmatic (40.14 ± 9.92  vs. 23.07 ± 6.79 min; 9.29 ± 3.45  vs. 3.18 ± 4.94 ml; all p < .05). No chest tubes were inserted in both subgroups. No complications were found in the postoperative follow-up of operative ELS patients at least 3 months. A total of eight infra-diaphragmatic ELS patients except for one (7/8) had conservative therapy and follow-up by the outpatient clinic or phone call eventually. There were no symptoms occurring and no size increasing of observation infra-diaphragmatic ELS.

CONCLUSIONS

The ELS has the potential risk of infection and torsion in this study. Thoracoscopic surgery might be optimal management of upper-diaphragmatic ELS for its minimal invasion and low perioperative risks, which could be developed into a day operation with safe and quick recovery. The intra-diaphragmatic and infra-diaphragmatic ELS need a larger sample size and multiple center data to get a better management approach.