1/138. Eagle's syndrome: an unusual cause of a clicking jaw.Calcification of the stylohyoid ligament is a well recognised radiographic finding in dental practice. Fortunately, affected individuals seldom develop symptoms. We report a case of a patient whose main complaint was a loud click following jaw movement. This unusual presentation has not been described before and should be considered in the differential diagnosis of 'clicking jaw'.- - - - - - - - - - ranking = 1keywords = ligament (Clic here for more details about this article) |
2/138. Myelopathy due to calcification of the cervical ligamenta flava: a report of two cases in West Indian patients.Two cases of cervical myelopathy due to calcification of the ligamenta flava (CLF) are described for the first time in black patients from the French west indies. A pre-operative CT scan differentiated the diagnosis from one of ossification of the ligamenta flava. Microanalysis on the operatively excised specimen in one patient revealed a mixture of calcium pyrophosphate dihydrate crystals and hydroxypatite crystals. Poor outcome in one patient contrasting with excellent recovery in the other one, who had undergone posterior decompressive laminectomy, emphasizes the importance of surgery in the management of CLF.- - - - - - - - - - ranking = 6keywords = ligament (Clic here for more details about this article) |
3/138. Initiation of ectopic epithelial calcification in a calcifying odontogenic cyst.Ultrastructural observation was performed on a calcifying odontogenic cyst (COC) associated with an odontoma and arising in the right mandibular region of an 8-year-old Japanese boy. Four types of cells were identified in the epithelial layer of the COC. The basal cells were low columnar in shape and contained some intracellular organelles. They were attached to the neighboring cells with a few desmosomes and resembled inner enamel epithelium of the normal enamel organ. The stellate reticulum-like cells, polygonal in shape, possessed desmosomes and many cytoplasmic projections. Some intracellular organelles and a few bundles of tonofilaments were observed in the cytoplasm. The light oval cells that were pale staining with toluidine blue contained dilated membranous organelles and many relatively evenly distributed tonofilaments. These cells were usually scattered in the vicinity of the focal accumulations of ghost cells, and the cell membrane was discontinuous in parts. The ghost cells contained many bundles of tonofilaments that were 60-240 nm in diameter and arranged in various directions. No intact intracellular organelles were noted in the cytoplasm. They were attached to the neighboring ghost cells with some desmosomes and their cell membrane was discontinuous in parts. A variety of vesicles, 90-450 nm in diameter, were scattered among the tonofilament bundles. Some of these contained needle-like crystals that were considered to be initial calcification sites in ghost cells. These vesicles presented morphological similarities to matrix vesicles, and it is therefore suggested that matrix vesicle-like structures are deeply involved with initiation of calcification of ghost cells in COC.- - - - - - - - - - ranking = 0.025059605859246keywords = membrane (Clic here for more details about this article) |
4/138. association of diffuse idiopathic skeletal hyperostosis (DISH) and calcification and ossification of the posterior longitudinal ligament.Diffuse idiopathic skeletal hyperostosis (DISH) is a common ossifying diathesis in middle-aged and elderly patients characterized by bone proliferation along the anterior aspect of the spine and at extraspinal sites of ligament and tendon attachment to bone. Four patients with DISH revealed extensive calcification and ossification of the posterior longitudinal ligament in the cervical spine. review of cervical spine radiographs in 74 additional patients with DISH demonstrated bony hyperostosis of the posterior aspect of the vertebrae in 41%, posterior spinal osteophytosis in 34%, and posterior longitudinal ligament calcification and ossification in 50%. These ligamentous findings, which have previously been described almost exclusively in Japanese people, appear to be an additional skeletal manifestation of DISH.- - - - - - - - - - ranking = 8keywords = ligament (Clic here for more details about this article) |
5/138. The styloid or "Eagle" syndrome: an unexpected consequence.The development and pathogenesis of the elongated styloid process with a calcified stylohyoid ligament are reviewed and discussed. A case report is presented to demonstrate that, although the related symptoms may be mild, unless the patient is aware of the cause of the discomfort, a "cancerophobia" may cause great emotional distress.- - - - - - - - - - ranking = 1keywords = ligament (Clic here for more details about this article) |
6/138. Tumoral calcinosis: a case report with an electron microscopic study.A 68-year-old woman developed large subcutaneous masses on her abdomen and thighs after a bruise sustained in a traffic accident. She had severe pain when sitting up straight. Histological examination revealed calcified tissues in the entire dermis of the injured areas. On electron microscopy, crystalline materials were observed in the dermis, which seemed to be formed by the deposition of hydroxyapatite on unusual proteoglycan. In a vessel wall, a thick, layered basement membrane was observed. This suggests that vascular injury and subsequent hypoxia play a role in the process of calcinosis. We performed a partial resection with good results in alleviating the patient's pain.- - - - - - - - - - ranking = 0.012529802929623keywords = membrane (Clic here for more details about this article) |
7/138. 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 = 5keywords = ligament (Clic here for more details about this article) |
8/138. carpal tunnel syndrome caused by an idiopathic calcified mass.This is a case report of carpal tunnel syndrome caused by an idiopathic calcareous lesion within the carpal canal. The median nerve was trapped between the transverse carpal ligament and the calcified mass. The mass was predominantly composed of calcium phosphate. Surgical release of the transverse carpal ligament and removal of the calcareous mass relieved the symptoms.- - - - - - - - - - ranking = 2keywords = ligament (Clic here for more details about this article) |
9/138. Left atrial calcification in a hemodialysis patient with cor triatriatum.Myocardial calcification is a rare manifestation of abnormal calcium metabolism seen in some patients with chronic renal failure. This report describes the transesophageal echocardiographic and spiral computed tomography (CT) findings in a young hemodialysis female with severe secondary hyperparathyroidism. These findings included calcification of the multiperforated membrane of a cor triatriatum and the wall of the left atrium.- - - - - - - - - - ranking = 0.012529802929623keywords = membrane (Clic here for more details about this article) |
10/138. The amyloid deposit in calcifying epithelial odontogenic tumor is immunoreactive for cytokeratins.Calcifying epithelial odontogenic tumor, also known as Pindborg tumor, is a rare benign tumor with locally aggressive behavior. It is characterized by squamous epithelial cells, calcifications, and eosinophilic deposits that have been identified as amyloid. We report a case of calcifying epithelial odontogenic tumor and investigate the nature of the amyloid, using histologic, immunohistochemical, and ultrastructural studies. The amyloid was immunohistochemically negative for basement membrane components and positive for all cytokeratin stains performed (cocktail of cytokeratins 1, 5, 6, 8, 13, and 16, and cytokeratins AE1 and AE3). The amyloid stained focally in a glandular-like pattern, reminiscent of the epithelial glandlike structures of the tumor. We conclude that the amyloid is derived from filamentous degeneration of keratin filaments that originate from the tumor squamous epithelium. The keratin degeneration is part of a developmental or aging process that the tumor undergoes.- - - - - - - - - - ranking = 0.012529802929623keywords = membrane (Clic here for more details about this article) |
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