[A Case of Gastric Schwannoma Diagnosed Preoperatively].

The patient was a 52-year-old woman, who was found to have an abnormality in the upper gastrointestinal(UGI)tract, via a contrast-imaging study; she had no symptoms.Computed tomography(CT)revealed a tumor, measuring approximately 100mm in diameter, in the antrum of the stomach.The tumor was diagnosed as gastric schwannoma using endoscopic ultrasonography-guided fine-needle aspiration(EUS-FNA).Preoperative CT revealed multiple lymph adenopathies around the antrum, which led to the suspicion of lymph node metastasis. The patient underwent a laparoscopic partial gastrectomy after the confirmation of the absence of lymph node metastasis by intraoperative rapid diagnosis.

[Consideration of the Mechanism for Anterior Condylar Confluent Dural AVF Diagnosed with Neck Pain].

OBJECTIVE: Anterior condylar confluent dural arteriovenous fistula(ACC-dAVF)constitutes 3.7% of the total dAVF cases reported and has been regarded as a rare disease in the past. However, encounters with this disease are increasing due to MRI and awareness of this condition. The symptoms of this disease have been reported as tinnitus(75%), ocular symptoms(31%), sublingual nerve palsy(12%), spinal cord symptoms(11%), and intracranial bleeding(5%). Here, we report our identification of a case of ACC-dAVF, which is different from conventional reports, and the associated findings. CASE PRESENTATIONS: We experienced a series of 3 cases of ACC-dAVF with the chief complaint of neck pain. The symptoms in all three patients disappeared after transvenous embolization. Based on the pathophysiology of cervical pain, we presumed that the blood flow dynamics of the odontoid arcade was involved. As expected, after the blood flow near the transverse ligament of the atlas was normalized the symptoms disappeared. CONCLUSION: We could not find previous reports of ACC-dAVF where the main symptom was cervical pain. We report the possibility of a mechanism of dAVF different from those reported previously.