Intestinal hemolymphangioma is a rare vascular and lymphatic malformation and is manifested as anaemia and recurrent alimentary tract hemorrhage. Few cases of hemolymphangioma occurring in small intestine, spleen, esophagus and other organs have been reported. We herein report a case of a 37-year-old man with severe rectal bleeding. Digital examination revealed nodular mucosa. No rectal mass was palpated, but bleeding in the ampulla was detected. Colonoscopy revealed an extensive hypervascular submucosal lesion arising from the rectosigmoid junction colon to the distal edge of the anus. Endoscopic ultrasonography demonstrated an extensive anechoic mass with clear edge. Magnetic resonance imaging (MRI) showed a significant thickness of the rectal wall, extending to the distal edge of the anus, with a narrowing lumen. A sphincter-saving rectal surgery was performed. Due to a lack of knowledge of the clinical, endoscopic and radiological features, preoperative recognition of hemolymphangioma is not easy. Computed tomography and MRI are helpful in confirming the diagnosis, and defining the extent and invasion of the lesion. For the low malignant potential tumors, a sphincter-saving rectal surgery is recommended after a full evaluation of the tumor.

TCMA for patients with low rectal cancer leads to better quality of life and satisfactory defecation function, and lowers anastomotic leakage occurrence, and might be one of the safe operative procedures in anus-preserving rectectomy.

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The fracture reasons of 500kV high-voltage disconnectors hoops were analyzed. The fracture appearance, composition of chemical elements, metallographic, mechanical properties of the fractured hoops were investigated by ICP-AES, SEM, optical microscope, brinell hardness tester, universal testing machine. The test results that one reason is substandard products of this batch hoop. The composition of chemical elements and mechanical properties is fails to comply with applicable standards prescribed and the casting defects are found. Another reason is that the large pre-tightening force and tightens reverse order.

The dissertation study was collected from 2015 to 2018 inpatients in our hospital for spinal surgery. For the 574 patients who met the inclusion criteria, they were divided into group A according to lumbar vertebrae QCT: lumbar vertebra CTQ ≤ 30 mg/cm3; group B: 30 mg/cm3 < waist QCT value ≤ 50 mg/cm3; group C: 50 mg/cm 3 < waist QCT value < 80 mg/cm3; Group D: 80 mg/cm3 ≤ waist QCT value < 120 mg/cm3. Among them, 142 patients in group A, 172 patients in group B, 177 patients in group C, and 83 patients in group D. MRI data from each group were reviewed and recorded for the presence or absence of a black linear signal on the STIR fat suppression image. The aim was to investigate whether bone density values were associated with the presence of a black linear signal of MRI STIR in osteoporotic vertebral compression fractures in order to provide a better reference for clinical treatment.