Nodules discrete

An autonomous thyroid nodule (toxic adenoma) is a discrete thyroid mass whose function is independent of pituitary control. Hyperthyroidism usually occurs with larger nodules (i.e., those greater than 3 cm in diameter). 

In nodular episcleritis there is usually only a single distinct, elevated, red, edematous nodule with surroimd-ing congestion (see Figure 28-1). This classification is localized to discrete areas, each of which consists of an elevated nodule that is mobile over the underlying sclera. Because edema is isolated to the episclera, a biomicroscope slit beam does not show any upward deviation of the underlying sclera. Nodules vary in size and elevation,... 

Wo < 35%) occur in cratonic suites as megacrysts or discrete nodules, and indicate very high T of equilibration, perhaps in equilibrium with melt (Boyd, 1969, 1970 Boyd and Nixon, 1978). 

Boyd F. R., Nixon P. H., and Boctor N. Z. (1984b) Rapidly crystallised garnet pyroxenite xenoliths possibly related to discrete nodules. Contrib. Mineral. Petrol. 86, 119-130. 

Nixon P. H. and Boyd F. R. (1973b) The discrete nodule association in kimberlites from northern Lesotho. In Lesotho Kimberlites, (ed. P. H. Nixon) Lesotho National Development Corporation, Maseru, Lesotho, 67-75. 

Nixon P. H. and Boyd F. R. (1979) Garnet bearing Iherzohtes and discrete nodules from the Malaita alnoite, Solomon Islands S. W. Pacific, and their bearing on oceanic mantle composition and geotherm. In The Mantle Sample Inclusions in Kimberlites and Other Volcanics (eds. F. R. Boyd and H. O. A. Meyer). American Geophysical Union, Washington, DC, pp. 400-423. 

Furuncles are discrete lesions, whether occurring as singular or multiple nodules. 

Complete surgical resection of discrete hepatic, pulmonary, abdominal, or brain metastases in patients with colorectal cancer, if possible, may offer selected patients an opportunity to experience extended DPS. Patients who have from one to three small nodules isolated to the liver, lungs, or abdomen have the most favorable outcome. Up to 25% of patients will present with hepatic metastases at time of diagnosis, and 60% of patients with colorectal cancer wfll develop hepatic metastases sometime during the course of their disease. 

Unlike calcite and dolomite, siderite rarely forms as an extensive pore-filling cement, but rather as discrete fine crystals, spherules and nodules scattered in the host sediments. Nevertheless, Baker et al. (1996) found that early diagenetic siderite concretions (0.5-2 mm) form up to 30% of Triassic sandstones and mudstones from eastern Australia. Laterally continuous siderite-cemented offshore shelf sandstone sheets (15 cm thick) occur in Upper Cretaceous sequences from Canada (McKay et ai, 1995). 

FIGURE 3.9 Illustration of proposed deposition mechanism leading to cone/nodule formation and fracture points for CEPs (a) preferential deposition occurs at discrete sites on the electrode surface resulting in microisland formation, and (b) microislands form upward and outward with continued deposition. 

Several interesting features were apparent when the aluminide specimens were observed in plan after exposure at 700°C (Figure 3). In all cases, there was little evidence for loss of scale by spallation. However, second-phase particles were observed on all the surfaces, particularly of the lower aluminium-containing alloys, FA 56 and FA 57, while the number and size of such particles for a given alloy were less for preoxidized specimens than for those exposed directly in the mixed gas. Detailed examination and EDX analysis of the particles (e. g. labelled, C, A and B respectively in Figures 3(c), 3(d) and 3(f)) indicated them to be rich in iron and sulphur although too small for precise analysis, they were undoubtedly sulphide nodules. These nodules were always small and discrete, with no evidence that extensive sulphidation of the substrate had... 

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