1/130. Localized pericarditis with calcifications mimicking a pericardial tumor.A 62-year-old man was admitted with increasing palpitations. radiography of the chest demonstrated a calcified mass. magnetic resonance imaging revealed compression of the right ventricle by a tumor. At the time of cardiac catheterization, the coronary arteries were found not to supply blood flow of the mass, and no dip-and-plateau pattern was seen in the right ventricular pressure measurements. At the time of surgery, the mass was found to be a focal calcified thickening of the pericardium containing only pus. The thickening resembled an oval pericardial tumor. Microbiologic examination of the pus revealed propionibacterium acnes.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
2/130. Aortic calcification contributing to bone densitometry measurement.A 75-yr-old glucocorticoid-dependent asthmatic male had a bone mineral density study to assess possible osteoporosis prior to initiating therapy. A radiograph of the lumbar spine revealed an asymmetrical compression of the second lumbar vertebra, marked scoliosis, vertebral osteopenia, and a highly calcified abdominal aorta. Bone mineral density (dual X-ray absolptiometry [DXA]) revealed low bone mass in L2-L4 and a markedly abnonrnal pattern, with a linear central density representing a calcified aorta. Posterior-anterior measurements of the midlumbar region with and without the overlying aorta indicated that the calcified vessel contributed up to 33% of the measured density. This was a far higher contribution than reported in other studies. Lateral DXA measurements of the L2 vertebra and the overlying aorta were performed to validate this finding. The density of the L2 vertebra was 0.215 g/cm(2), and that of the overlying calcified aorta was 0. 210 g/cm(2). This case suggests that aortic calcifications may contribute sign)ficantly to overall lumbar bone density and, unless recognized, can inadvertently lead to misclassification of osteoporosis.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
3/130. Deposition of calcified tissue around an overextended gutta-percha cone: case report.CASE REPORT: Root canal treatment was performed in a mandibular right second premolar with a periapical lesion and apical resorption. The root canal was prepared with K-files using the step-back technique and 3% NaOCl as an irrigant; during obturation gross overfilling of gutta-percha occurred. The tooth was permanently restored with a post and core along with a crown. Although healing of the periapical lesion occurred and the patient reported that he was symptom-free, the tooth was extracted after 4 years because of a subgingival root fracture. Following extraction the tooth was examined with SEM. The examination revealed the presence of newly formed calcified tissue at resorption sites on the root apex. This newly formed tissue extended from the surface of the root around the apex to the extruded gutta-percha cone to which it was well adapted, forming a bridge between the cone and the root.- - - - - - - - - - ranking = 0.1855491117503keywords = fracture (Clic here for more details about this article) |
4/130. Infantile cerebral aneurysms with visual pathway compression.Intracranial aneurysms are rare in infancy. The commonest presentation is intracranial hemorrhage, but signs of mass effect are more frequent than in adults. We report 2 infants with cerebral aneurysms, one presenting with macrocephaly and another with strabismus. Both had visual loss and optic disc pallor; MRI revealed a suprasellar mass and anterior visual pathway compression. In both cases, the preoperative diagnosis was craniopharyngioma. It is essential to recognize that, although exceedingly uncommon, cerebral aneurysms do occur in infants and have features that differ from those in adults.- - - - - - - - - - ranking = 5keywords = compression (Clic here for more details about this article) |
5/130. Ossification of the ligamentum flavum as a cause of myelopathy in north america: report of three cases.Myelopathy caused by ossification of the ligamentum flavum is a rare condition in north america. The authors describe three patients whose myelopathy was attributed to posterior cord compression warranting laminectomy to decompress the cervical spine (in one patient) and the thoracic spine (in two patients). The spinal computed tomographic scan (especially after myelography) can be instrumental in guiding the management of this condition.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
6/130. Compression of the ulnar nerve in Guyon's canal by uremic tumoral calcinosis.We describe the case of a 70-year-old woman with chronic renal failure on haemodialysis presenting with an ulnar nerve compression in Guyon's canal secondary to uremic tumoral calcinosis. Excision of calcium deposits and external neurolysis of the ulnar nerve were successfully performed. Simultaneously, the hyperphosphatemia and hypercalcemia were corrected. The pathogenesis of this condition is different from primary tumoral calcinosis. Clinical and radiological features and therapy are discussed. Uremic tumoral calcinosis is an unusual etiology of ulnar nerve compression in Guyon's canal not previously reported in dialysis patients.- - - - - - - - - - ranking = 2keywords = compression (Clic here for more details about this article) |
7/130. Diffuse calcinosis cutis in a patient with congenital leukemia and leukemia cutis.We report an unusual case of congenital leukemia with leukemia cutis (LC) and diffuse calcinosis cutis. A newborn girl presented with widespread dusky red and yellowish cutaneous nodules and papules. bone marrow morphology was consistent with the diagnosis of acute monocytic leukemia of the FAB M5 type. skin biopsy specimens confirmed the presence of a leukemic infiltrate and revealed calcium salt deposition in the papillary and reticular dermis. calcinosis was diffuse in the whole skin but spared other organs. vascular calcification was not present. serum calcium levels oscillated between 2.5 and 2.86 mmol/l, and phosphorus, parathyroid hormone and 25-hydroxyvitamin D(3) levels were normal. There were diffuse osteoporosis and spontaneous fractures of small tubular bones. The patient responded to chemotherapy but, following consolidation treatment, developed sepsis and died at 120 days of age. Congenital leukemia is rare and LC is uncommon. hypercalcemia may be a complication of leukemia, which leads to multiorgan metastatic calcification. Despite the absence of frank hypercalcemia, the presence of bone lesions suggests that the patient's calcinosis cutis was of the metastatic type. However, the cutaneous leukemic infiltrate may also represent a triggering factor for calcium deposition in the skin.- - - - - - - - - - ranking = 0.1855491117503keywords = fracture (Clic here for more details about this article) |
8/130. Hypoxic-ischemic encephalopathy with cystic brain stem necroses and thalamic calcifications in a preterm twin.A severe and rare ischemic brain lesion in a preterm twin boy is reported. The boy was born after two weeks of anhydramnios and amnionic infection at 24 weeks of gestation. Following a difficult Caesarean section and prolonged umbilical cord compression he developed prenatal acidosis with an umbilical cord pH of 6.96. At the age of 7 h, heart rate variability narrowed due to severely disturbed brain stem function and the patient developed clinical signs of hypoxic-ischemic encephalopathy. Sonography demonstrated extensive symmetrical brain stem and basal ganglia lesions. After a prolonged comatose and apneic state, death occurred at the age of 25 days. autopsy confirmed columnar bilateral cavitation of basal ganglia, diencephalon, brain stem and spinal gray matter, as well as focal calcifications in the palladium, thalamus, and brain stem. The findings highly resemble those observed after experimental or clinical cardiac arrest.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
9/130. A rare, unreported complication during coronary rotational atherectomy.We describe a rare and unreported complication during rotational atherectomy of a heavily calcified lesion in the left circumflex artery in a 79-year-old man. The Teflon sheath housing the drive shaft fractured, most probably due to overtightening of the Y-adapter hemostatic valve. As a result, there was intense spasm leading to acute ischemia and the procedure had to be abandoned. This case highlights the importance of using familiar and thoroughly tested hardware in technique-intensive procedures.- - - - - - - - - - ranking = 0.1855491117503keywords = fracture (Clic here for more details about this article) |
10/130. Calcifying pseudoneoplasms of the spine with myelopathy. Report of two cases.The authors describe two cases of calcifying pseudoneoplasms, rare degenerative lesions that mimic tumor or infection. One case involved the cervical spine and the second the thoracic spine. Both patients experienced progressive myelopathy from extradural compression of the spinal cord. The radiological evaluation, pathological findings in the lesions, treatment, and follow up are described. Total or subtotal excision can relieve symptoms and prevent recurrence of this lesion.- - - - - - - - - - ranking = 1keywords = compression (Clic here for more details about this article) |
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