(n.) A small opening; a small pit or depression; a small blank space; a gap or vacancy; a hiatus.
(n.) A small opening; a small depression or cavity; a space, as a vacant space between the cells of plants, or one of the spaces left among the tissues of the lower animals, which serve in place of vessels for the circulation of the body fluids, or the cavity or sac, usually of very small size, in a mucous membrane.
Example Sentences:
(1) Casts of lacunae and canaliculi along with the underlying matrix could be visualized in these preparations.
(2) This kind of distribution of microfilaments was always associated with resorption lacunae, and F-actin, vinculin, and talin zones correspond roughly to the edge of lacunae.
(3) As lacunae develop, both syncytial and cytotrophoblast are exposed to maternal blood.
(4) A cartilage is regarded as 'cell-rich' if its cells or their lacunae occupy more than half of the tissue volume.
(5) Intravenous urography reveals the presence of a persistent lacuna in a calix or of the pelvis, radiologic evidence of the abnormal papilla.
(6) Under the scanning electron microscope, the clear dentine tubules in the resorption lacuna, the shallow, unclear resorption lacuna with deposition of the hard tissue and the various steps between them were observed.
(7) Localised tumour forms present either in the form of large polycyclic lacunae, sometimes invaginated or as vast ulcerations with irregular nodular margin, or as due to parietal infiltration and exoluminal development of the tumour mass and neighbouring adenopathy.
(8) The resorbant organ, rich in odontoclasts, cementoblasts, fibroblasts, and macrophages, formed prominent resorption lacunae in root dentin.
(9) Signs of osteolysis, such as enlarged osteocyte lacunae surrounded by a metachromatic zone in toluidine blue stained sections, and confluence of osteocyte lacunae in microradiographs, were compared with the fluorochrome labelling pattern.
(10) These had networks which formed the floor of each stomata and the roof of each lacunae.
(11) Besides greater detailization of the prevailing diameters of the pores, the method of poremetry allows the information to be obtained concerning the distribution of not only sizes of central canals of osteons but also smaller pores characterizing the system of lacunae of osteocytes and canals connecting them.
(12) Osteocyte viability within the femoral head was assessed by counting empty osteocyte lacunae in five random high-power fields of hematoxylin- and eosin-stained sections.
(13) Lipohyalinosis, initially referred to as the underlying pathologic vascular lesion specific for lacunae, is found most commonly in a subset of patients with severe hypertension associated with multilacunar dementia.
(14) These areas were characterized by a matrix of amorphous blue ground substance with lacunae that contained enlarged and slightly atypical cells.
(15) The condition was diagnosed by biopsy of a cranial bone lacuna.
(16) When ascorbic acid is added to the hormone-supplemented medium, differentiating chondrocytes organize their matrix leading to a cartilage-like structure with hypertrophic chondrocytes embedded in lacunae.
(17) The occlusion of arterioles underneath the site suggests that circulation through the lacunae at this stage is indirect.
(18) The second most common cause of dementia, cerebrovascular disease, produces dementia only when there is destruction of brain tissue, as in individuals who have multiple strokes or who have hypertensive vascular disease leading to multiple lacunae.
(19) Macrophages and giant cells did not form pits or resorption lacunae on the bone substrates as osteoclasts did.
(20) These MNC express an osteoclast phenotype and form resorption lacunae on calcified matrices.
Lacune
Definition:
(n.) A lacuna.
Example Sentences:
(1) In respect to differential diagnosis MRI revealed infarcts, basal ganglia lacunes and confluent white matter lesions as the most effective discriminators between VD and DTD.
(2) At two years, survival rates of lacune and TIA are the highest.
(3) Subdural hematoma and multiple lacunes in the cerebral white matter were demonstrated with brain MRI.
(4) Type II lacunes have not previously been reported during life.
(5) Our aim was to evaluate the capabilities of magnetic resonance imaging in the detection and delineation of lacunes in a project of clinicotopographic correlations.
(6) We evaluated 108 consecutive patients with a lacune in the lenticulostriate distribution for other stroke risk factors such as carotid and cardiac disease.
(7) The regional cerebral blood flow measured by the xenon-133 inhalation method was significantly lower in subjects with silent lacunes than in those without (p less than 0.02).
(8) Magnetic resonance imaging showed a left thalamic lacune bordering the medial portion of the posterior limb of the internal capsule.
(9) Two patients with a small lacune and a hemorrhage in the pontine tegmentum showed a selective sensory deficit of the medial lemniscal type.
(10) Patients with lacunes (P(+)) were significantly higher in age than patients without lacune (P(-)).
(11) The small arterioles in the lacune cavities supplied adjacent intact brain.
(12) In the present work, it is demonstrated that the chemical peritonitis also widens the stomata in the roofs of the diaphragmatic lymphatic lacunes.
(13) The results indicate that the differences in the frequency of lacune and subarachnoid hemorrhage were associated with the patient population, whereas the differences in the frequency of embolism and atherothrombosis were associated with the diagnostic process.
(14) There wasn't any lacune neither in the cerebral stem nor in the cerebellum.
(15) Intracerebral haemorrhages (ICH) account for 8.8% of strokes, subarachnoid haemorrhages (SH) for 1.5%, cortical infarcts (CI) for 45.6%, lacunes for 16.7%, TIA for 15.8%, and 11% were undetermined.
(16) CT scans showed recent infarction in 4 patients and an old subcortical lacune in 2 patients.
(17) This is the 1st animal model of (1) stroke with emboli produced in vivo rather than injected into the carotid, (2) intimal proliferation of smooth muscle without invasion of the vessel, and (3) lacunes.
(18) Pathological examination of the brain from one patient showed the presence of severe hemorrhagic "lacunar" infarcts adjacent to the left lateral ventricle, one showing direct continuity of blood in the lacune with the massive intraventricular hematoma.
(19) Medical history, neurologic history, and hospitalization summaries are presented separately for the following stroke subtypes: infarction, unknown cause; embolism from cardiac source; infarction due to atherosclerosis; lacune; parenchymatous or intracerebral hemorrhage; subarachnoid hemorrhage; and other.
(20) The ipsilateral infarct rate was 10% after the first year, but decreased markedly thereafter (2.4% per year), and one third of these infarcts were probably lacunes due to hypertensive small vessel disease.