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51.
An 18-year-old female patient suffering from a painful right-sided neck mass was admitted to our emergency service. Computed tomography of the neck revealed thrombosis of the right internal jugular vein. Computed tomography of the chest indicated septic pulmonary emboli in both lungs. Blood and oropharyngeal cultures showed proteus that was sensitive to cefepime and amicasin. Chemotherapy was administered for 12 days, however, her complaints continued with fulminant progression. An urgent decompression and excessive debridement were performed. Although Lemierre syndrome is a well-known cause of internal jugular vein thrombosis, association with proteus culture is very rare.  相似文献   
52.
Intramuscular lipoma (IML) is a relatively common variant of lipomas. The most important sites for IML are the large muscles of the extremities. Spindle cell lipoma (SCL) is a rare and distinct variant of lipoma. Most SCL arise in the neck, shoulders or back. It has also been described in unusual sites, such as the oral cavity, larynx, bronchus, breast, orbit and extremities. However, localization of a SCL in an IML has not been described yet. Thus, we present the first SCL located in an IML, which was localized underneath the fascia and embedded within the left sartorius muscle of a 55-year-old man. Microscopically, the SCL component of the tumor was sharply circumscribed by a fibrous capsule and clearly separated from the IML in which it was localized. The collagen-forming spindle cells of the SCL showed neither atypia nor pleomorphism. These cells stained positive for CD34, while the mature fat tissue component of the SCL was positive for S-100 protein and negative for CD34. Spindle cells were negative for S-100 protein. Vimentin stained both components of the SCL, as well as the striated muscle fibers and mature fat tissue of the IML. In conclusion, careful morphological observation along with immunohistochemistry for CD34 and S-100 protein are essential to differentiate this rare tumor from lesions that enter the differential diagnosis.  相似文献   
53.
The aim of this study was to evaluate how timing of irradiation after brain surgery in rats relates to overall extent of brain radiation damage. Extent of injury was determined according to lipid peroxidation (malondialdehyde; MDA) levels in brain tissue. Thirty female rats were randomly assigned to five equal groups (Groups A-E). Four groups underwent trephination and scalpel hemisection of right frontal lobe. Rats in Groups B and D received 25 Gy cranial irradiation in a LINAC system at 10 and 20 days after surgery, respectively. Twenty-four hours later they were killed and their right frontal lobes were removed for lipid peroxidation determination. Groups A and C were not irradiated; these groups were killed and had their frontal lobes removed on day 11 and day 21 post-surgery, respectively. The remaining six animals (Group E, sham surgery) underwent trephination only, and were killed and had their frontal lobes removed 24 h later. There was a significant difference between the mean MDA levels in the control group and Group D, and between the levels in Group B and Group D (P < 0.05 for both). The difference between the mean for Group A and the mean for Group B was even more significant (P < 0.01). The most striking differences were between the control group and Group B, and between Group B and Group C (P < 0.001 for both). The data from this rat model suggest that, in humans, starting radiotherapy early (1-2 weeks) after debulking of a brain tumor may result in significantly higher levels of tissue damage than if the radiation is started 3 weeks or more postoperatively. Further experimental research is needed to project these findings in rats to human subjects.  相似文献   
54.
OBJECTIVE: Former studies have pointed out that hemodynamic stress imposed by associated valvular disease is the primary factor in the development of ascending aorta dilatation. At present, intrinsic wall pathology is blamed for dilatation and aneurysm formation in bicuspid aortic valve (BAV). MATERIALS AND METHODS: Aortic valve replacement (AVR) was performed on 78 adult patients with BAV. Patients were divided into two groups. Group I (n = 27) underwent only AVR. Group II (n = 51) underwent AVR and additional ascending aorta procedures such as Shawl-Lapel aortoplasty (n = 12) and tailoring aortoplasty (n = 9). Dacron wrapping was performed after both techniques were done. Ascending aorta replacement was done on 11 patients by using composite graft. Supracoronary graft replacement was performed in 3 patients after AVR. RESULTS: Ascending aorta diameter increment was 1.25 mm/year in normotensive and 2.80 mm/ year in hypertensive patients. Ascending aorta aneurysm (diameter > 55 mm) developed in eight patients in the postoperative period in group I. Ascending aorta dilatation did not develop in group II patients. Mean survival time +/- standard error (SE) was 128 +/- 11 and 99 +/- 4 months and survival possibility was 77.78% and 92.16%. Freedom from reoperation was 65.4% and 95.9% in 8 years in group I and group II, respectively. CONCLUSION: Aortic wrapping with or without aortoplasty has a beneficial effect not only in dilated ascending aorta but also in all nondilated BAV patients with normal-sized aortic diameter. Ascending aorta wrapping in BAV patients preserves the endothelial lining and prevents further dilatation, aneurysm formation, and dissection.  相似文献   
55.

Background

Mediastinitis after open-heart surgery is a serious complication that has a decreasing incidence but still a significantly high mortality rate. Back pain may develop during the course of treatment for mediastinitis, and this should suggest vertebral osteomyelitis in the differential diagnosis. Diagnosis of vertebral osteomyelitis may be difficult because of the insidious onset and delayed diagnosis, and treatment may result in serious neurologic compromise and even death of the patient.

Methods

This retrospective study involves 5 patients who had open-heart surgery and mediastinitis that was further complicated by vertebral osteomyelitis. Average delay in diagnosis was 18 days after the onset of symptoms. Magnetic resonance imaging was the most helpful tool for diagnosis. Methicilline-resistant Staphylococcus aureus was identified as the responsible microorganism in all patients. Neurologic compromise occured (one paraplegia and one paraparesia) in 2 patients during medical treatment.

Results

Along with the medical treatment, all patients were surgically treated due to either one or more of the following reasons: unresolving symptoms, sudden neurologic compromise, or impaired spinal column stability despite appropriate conservative treatment. One patient died 10 days postoperatively. The mean follow-up period for the remaining 4 patients was 47 (12 to 95) months. Complete recovery was achieved, and they were able to return to their routine daily activities.

Conclusions

Vertebral osteomyelitis should be borne in mind when a patient develops back pain during the course of mediastinitis. Suspicion, early diagnosis with appropriate imaging, and proper treatment are crucial to prevent catastrophic complications.  相似文献   
56.
Twenty-three patients with canalicular injuries who underwent emergency treatment are presented. A round-tipped pigtail probe was used to position the silicone tube for canalicular intubation. Four patients had the injury in the common lacrimal canaliculus. After tubing both canaliculi, the silicone tube ends were retrieved from the inferior meatus. The rest of the patients had inferior canalicular injury. In those cases, a circle was formed by a silicone tube between the upper and lower canaliculi. The silicone tube was held in place for 4–6 months. After removal of the silicone tube, the lacrimal drainage system was evaluated by the dye disappearance test and radiological methods. The drainage system was patent in all cases with a consequent lack of epiphora.This study was partly presented at the European Appointed 20th National Congress of the Turkish Society of Plastic Surgeons on 5 September 1998.  相似文献   
57.
A major gastrointestinal complication after transperitoneal aortic surgery, though unusual, may be disastrous. We determined retrospectively the risk factors, associated events, and outcomes of gastrointestinal complications that developed after transperitoneal aortic revascularization to treat aneurysmal or occlusive disease over a 10-year period. Among 750 patients reviewed, gastrointestinal complications developed postoperatively in 65 of them (8.6%), including paralytic ileus in 35 patients, gastrointestinal bleeding and mechanical ileus in 6 patients each, colonic necrosis in 2, ischemic colitis and diarrhea in 10, acute cholecystitis in 2, ascites in 1, as well as aortoduodenal fistula, which developed about 2 months postoperatively in 3 patients. Five of the patients died of multiorgan failure. Mean stay in the intensive care unit was 3 days, and hospital stay ranged from 15 to 60 days. No risk factors were identified for the occurrence of gastrointestinal complications. These results show that gastrointestinal complications after transperitoneal aortic surgery prolong hospital stay and may have serious consequences.  相似文献   
58.
A 34-year-old woman presented with chest pain and a solitary pulmonary nodule on chest roentgenogram. She was diagnosed with a rare benign lung tumor, alveolar adenoma of the lung, through pathological examination of the surgical specimen resected from the left upper lobe. Clinicians should also keep this entity in mind when making the differential diagnosis of a solitary pulmonary nodule.  相似文献   
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