Retroperitoneal inflammatory myofibroblastic tumor (IMT) is a rare lesion of unknown etiology. The management of IMT may be challenging due to its intermediate malignant potential, the possibility of local recurrence after surgical resection and its unique anatomic location, which makes radical resection impossible due to its proximity to vital structures. Thus, treatment for recurrence and metastasis mainly relies on chemotherapy. We herein report a case of a 60-year-old man with an IMT sized 6.7×5.1 cm, located in the left adrenal area, which was identified by a computed tomography (CT) scan of the abdomen. Radical surgical resection of the tumor was not feasible, as it was fixed to the left renal artery. After 5 months, the patient underwent CT-guided radiofrequency ablation of the re-growing tumor. An unresectable mass was detected in the patient's rectum by a CT scan of the pelvis. Subsequently, the patient underwent chemotherapy for the recurring and metastatic tumors. The chemotherapeutic regimens included epirubicin, dacarbazine and docetaxel. Over the last 6 months, after three cycles of therapy, the sizes of the primary and metastatic tumors had decreased on the follow-up CT scan. Thus, chemotherapy effectively controlled the disease in this case, following unsuccessful surgical resection and radiofrequency ablation. The present case report highlights the complexity of treatment in such cases and the significance of designing a clinical protocol for the treatment of IMT.
The power network's operation security contributes to the power grid's smooth operation. Aiming at the problem that each network node in the conventional power communication network attack penetration system is fragile, and the global network attack graph cannot be generated, which leads to the failure of the network attack penetration vulnerability test, this study introduces the knowledge map into it and designs a power communication network attack penetration test system. In hardware, the FPGA chips and RAM are designed. In terms of software, the software architecture of the test system is established to control the network attack penetration globally, and then the knowledge map is used to construct the communication network attack graph model and generate the network global attack graph, so as to realize the effective test of the electric power communication network attack penetration vulnerability. By using the method of system testing, it is verified that the number of vulnerabilities tested by the system is consistent with the actual situation, and it can be applied to real life.
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