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.
References in periodicals archive ?
A significant portion of municipal budgets is affected by the geographic pattern of development, including street construction and maintenance, water and sewer infrastructure, fire protection and police services, solid waste removal, and school transportation.
As is the case with Medicare Advantage star ratings and the hospital readmissions penalty, a clear geographic pattern is evident: New England, the Upper Midwest and Pacific regions score the highest, and the South and Greater Appalachia score the worst.
But, there is no clear geographic pattern to where the states with the lowest engagement levels are located.
Because this borrowing was driven by (and also drove) high home-price appreciation in some parts of the country, there is a clear geographic pattern to changes in credit usage over the last decade.
On the other hand, sources from the Muscat Municipality, while denying this, claim that the roads in the Sultanate are designed as per the 'Oman's guide of roads design' and also by keeping in mind the geographic pattern of the area in which the road is to be built.
During a recent five-month study completed in June 2010, Kaspersky Lab analysts tracked an online crime gang using a version of the Zeus Trojan and developed a geographic pattern of its attacks as well as a profitability evolution.
According to Ken Chan, vicepresident, Moody's Investors, " The added costs of higher visa fees, if passed on to US clients, are also not likely to shift either the secular growth in outsourcing or its geographic pattern away from India to elsewhere.
The clearest geographic pattern within this distribution of rates is that urban areas have a higher incidence of schizophrenia than rural areas," Stanley Zammit wrote.
Therefore, it would seem critical to know, and we would like the authors to comment on, whether the geographic pattern of the AK coincided with distribution of CMP solution from [greater than or equal to]1 Advanced Medical Optics manufacturing plants and, if so, the relevance of that information.
The survey also found contaminants occur in aried levels across the country, often following a distinct geographic pattern related to geology, geochemical conditions and land use.
The authors took the geographic pattern, considered that people in the south had lower cancer mortality and higher exposure to the sun, and concluded that vitamin D was the reason.
Studies of geographic variation need to be interpreted with caution because many factors beyond environmental exposure could determine the geographic pattern of a disease.
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