1/9. Stress-related primary intracerebral hemorrhage: autopsy clues to underlying mechanism.BACKGROUND: research into the causes of small-vessel stroke has been hindered by technical constraints. Cases of intracerebral hemorrhage occurring in unusual clinical contexts suggest a causal role for sudden increases in blood pressure and/or cerebral blood flow. CASE DESCRIPTION: We describe a fatal primary thalamic/brain stem hemorrhage occurring in the context of sudden emotional upset. At autopsy, the brain harbored several perforating artery fibrinoid lesions adjacent to and remote from the hematoma as well as old lacunar infarcts and healed destructive small-vessel lesions. CONCLUSIONS: We postulate that the emotional upset caused a sudden rise in blood pressure/cerebral blood flow, mediating small-vessel fibrinoid necrosis and rupture. This or a related mechanism may underlie many small-vessel strokes.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
2/9. motion sickness susceptibility due to a small hematoma in the right supramarginal gyrus.We describe a unique case of a woman who twice experienced episodes of susceptibility to motion sickness that lasted for several months. Both times a small hemorrhage from a cavernous angioma in the supramarginal gyrus (SMG) was detected by MRI. Because the SMG is part of area 7, which belongs to a network of multisensory visual-vestibular cortical areas, we conclude that a small lesion there can cause motion sickness susceptibility.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
3/9. Signal flare phenomenon as active bleeding in retroperitoneal hematoma with hematocrit effect on dynamic CT scan: three clinical cases and experimental study based on a specific gravity theory.The contrast medium was observed as a thin line indicating active bleeding in the cellular component and stayed at the boundary between the plasma and cellular components in liquefied hematomas. We could also reproduce the same phenomenon in an experimental study using human blood. The characteristic dynamic motion of the contrast medium demonstrated in the liquefied hematoma, which we have called the "signal flare" phenomenon, is a significant sign indicating active bleeding.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
4/9. Acetabular fracture causing hip joint tamponade. A case report.An 81-year-old woman had severe hip pain after a fall. radiography was normal, but computed tomography and sonography showed a minor, displaced acetabular fracture and hemarthrosis. Aspiration of 15 ml of blood reduced the intracapsular pressure in the neutral position from 30 kPa to atmospheric pressure with relief of pain and increased joint motion. This case confirms that acetabular fracture may escape radiographic diagnosis and cause hip joint tamponade. Aspiration should be considered as a palliative and possibly therapeutic measure.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
5/9. myositis ossificans circumscripta: a complication of tetanus.myositis ossificans developed in a 67-year-old man recovering from tetanus. This rare complication develops in the convalescent phase of tetanus through metaplastic changes in undifferentiated connective tissue cells in areas of myocellular injury. anoxia, hematoma formation, and immobilization may be contributing factors. Permanent loss of joint motion may be the end result of this ossifying process.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |
6/9. anterior compartment syndrome in a patient with fracture of the tibial plateau treated by continuous passive motion and anticoagulants. Report of a case.Open reduction and internal fixation with anterior compartment fasciotomy for fractures of both tibial plateaus in a 36-year-old woman was complicated by deep-vein thrombosis three days after surgery. After establishing anticoagulation, continuous passive motion (CPM) was instituted. Twenty-four hours after the commencement of CPM, an anterior compartment syndrome developed. A second operation revealed a large hematoma within the anterior compartment musculature, the development of which appeared to be the result of the combination of continuous passive motion and anticoagulation therapy in a seriously injured limb. In this clinical condition, especially close observation for the development of signs of elevated intracompartmental pressure is mandatory.- - - - - - - - - - ranking = 3keywords = motion (Clic here for more details about this article) |
7/9. Evaluation of computerized tomography, cinelaryngoscopy, and laryngography in determining the extent of laryngeal disease.A prospective study of over 100 cases comparing computerized tomography (CT) and correlating these studies with photographic motion picture studies of the larynx, conventional tomography and contrast laryngography has been performed. The authors give illustrative examples of cases in which the CT scan has been documented as providing equal and often times greater information concerning not only tumors, but also cystic lesions and traumatic lesions. With the newer technology, the reduced radiation (which is less than one half that of conventional tomography), and the decreased expense (now comparable to that of laryngography alone), eliminates the need for conventional laryngography and tomography examinations. The incorporation of motion picture documentation of the lesions allowing future comparative studies between the original lesion and the CT are recommended for a more accurate retrospective classification and assessment of therapeutic results.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
8/9. Thalamic neglect.Three patients with right thalamic hemorrhage showed contralateral neglect and limb akinesia. They also had anosognosia, visuospatial disorders, and emotional flattening. In animals, neglect can be induced by lesions along a cortico-limbic-reticular loop including the intralaminar thalamic nuclei. We propose that an activation defect is responsible not only for the neglect and akinesia, but also for the visuospatial and emotional defects usually associated with right-hemisphere cortical dysfunction.- - - - - - - - - - ranking = 1keywords = motion (Clic here for more details about this article) |
9/9. Differential movement during swallowing as an aid in the detection of thyroid pseudonodules.The clinical examination of neck masses is clearly imperfect and false-positive detection of thyroid nodules, termed "pseudonodules," remains a common problem. movement on swallowing has been emphasized as a highly specific feature of thyroid masses, but lesions in the vicinity of the thyroid can be displaced by underlying structures during deglutition, causing them to mimic thyroid nodules. Two cases are presented to illustrate how additional features of neck mass movement can help determine whether a lesion is located within the thyroid or whether it is extrathyroidal. These include the range of motion of the mass, the presence or absence of a stationary phase prior to descent, and the timing of the movements of the mass. Assessment of these parameters during the physical examination of anterior neck masses may help reduce the incidence of thyroid pseudonodules.- - - - - - - - - - ranking = 0.5keywords = motion (Clic here for more details about this article) |