geographic pattern

A term used in various specialties as a general descriptor for lesions in which large areas of one colour, histologic pattern or radiologic density with variably scalloped borders sharply interface with another colour, pattern or density, fancifully likened to national boundaries and/or coastlines
Dermatology A pattern of skin involvement in psoriasis
Forensics A descriptive term for the variegated pattern of skin ulceration seen in drug addicts who inject heroin subcutaneously (skin popping) which may be surrounded by an ‘ameboid’ rim of hyperkeratotic and inflamed skin
Imaging Broad areas of patchy destruction, seen in such diverse conditions as Gaucher disease, Langerhans cell histiocytosis, osteolytic tumours (e.g., metastatic bronchogenic carcinoma and osteosarcoma)
Pathology Sharply defined ‘fjord-like’ histologic separation of one tissue morphology from another, seen at low-power (40x) in the following:
Lymph nodes Lymphogranuloma venereum (LGV), less commonly in cat-scratch disease
Lungs Wegener’s granulomatosus where irregular necrotic patches are interspersed with scattered islands of preserved pulmonary parenchyma, also described in rare fulminant pulmonary infections
Soft tissue Epithelioid sarcoma (ES), in which geographic lesions may result from fusion of several necrotizing nodules, often accompanied by hemorrhage and cystic degeneration; the geographic islands have central necrosis and are rimmed by chronic inflammation. ES is a slow-growing malignancy of young adults, often of the upper extremities; the prognosis is poor if necrosis is present

geographic pattern

A general descriptor for lesions in which large areas of one color, histologic pattern, or radiologic density with variably scalloped borders sharply interface with another color, pattern or density, fancifully likened to national boundaries and/or coastlines Imaging Broad areas of patchy destruction, seen in such diverse conditions as Gaucher disease, histiocytosis X, osteolytic tumors–eg, metastatic bronchogenic carcinoma and osteosarcoma.
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References in periodicals archive ?
This has been used to explain Bergmann's rule, the geographic pattern of increasing size with decreasing temperature that is seen in some groups of animals.
The geographic pattern of surpluses and deficits has persisted for decades, and unless the UK economic model is radically changed there is no reason to believe that it will not continue.
The geographic pattern of expansion varied from season to season, with the largest differences along the Sahara's northern and southern boundaries.
The geographic pattern is evocative of former state Sen.
Despite the new larger investors in the market, the geographic pattern of investment remains limited," said S.
We wanted to see how closely a model, based on a simple set of processes, could match this geographic pattern of language diversity.
The value used to krig upon is a derivation of the PCI deduct value; therefore, the geographic pattern that emerged from the krig analysis was the result of all five factors.
It is crucial to understand and document this phenotypic active disease because it has geographic pattern of distribution as well as demographic mutational variations.
The governmental functions SGA used for modeling were chosen based on the degree to which the cost of providing them (either initially or ongoing) depends on the geographic pattern of development.
CDC analyzed data from the American Community Survey (ACS) to estimate county-level prevalence of severe vision loss (SVL) (being blind or having serious difficulty seeing even when wearing glasses) in the United States and to describe its geographic pattern and its association with poverty level.
Although scholarship readily recognizes the geographic pattern of Republican and Democratic dominance and competitiveness, no map portrays the most competitive presidential elections in American history between 1988 and 2012 (Johnson 2005; Gelman et al.
Water-energy balance and the geographic pattern of species richness of western Palearctic butterflies.

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