False-positive thromboscintigram resulting from lymphedema--a roentgen pathological model.
نویسندگان
چکیده
Abnormal thromboscintigrams were observed in patients with lymphatic obstruction. This syndrome was reproduced by surgically ligating the lymphatic drainage of the lower extremity of a dog prior to thromboscintigraphy.
منابع مشابه
False positive lower limb lymphoscintigraphy due to inadvertent intra-vascular injection of the tracer: Importance of tracer re-injection
We presented a 30 year-old woman presented with symmetrical swelling of the lower limbs since 5 years ago with sparing of the feet. She was highly suspicious of having lipoedema and was referred for lower limb lymphoscintigraphy to rule out possible lymphedema. Lymphoscintigraphy images showed asymmetrical injection sites and unusually high liver and spleen uptake. Inguinal nodes was not visual...
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Lymphedema is the chronic enlargement of tissue due to inadequate lymphatic function. Diagnosis is made by history and physical examination and confirmed with lymphoscintigraphy. The purpose of this study was to assess the accuracy of lymphoscintigraphy for the diagnosis of lymphedema and to determine characteristics of patients with false-negative tests. METHODS Individuals referred to our l...
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ReSultS: The study included 228 patients. Lymphedema was diagnosed clinically in 170 subjects and confirmed by lymphoscintigraphy in 162 (117 primary lymphedema, 45 secondary); 58 patients were thought to have a condition other than lymphedema and all had negative lymphoscintigrams (95% sensitivity, 100% specificity). A subgroup analysis of the 8 patients with clinical lymphedema but negative l...
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FDG PET CT scan is considered to be a sensitive tool to detect skeletal metastasis in known malignancies. However, it’s high sensitivity and low specificity may account for false positive diagnosis in cases of trauma, infection, inflammation and other benign conditions. Skeletal hemangioma is one of the common benign conditions which are typically ametabolic on FDG PET CT with no uptake on bone...
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PROSITE database contains a set of entries corresponding to protein families, which are used to identify the family of a protein from its sequence. Although patterns and profiles are developed to be very selective, each may have false positive or negative hits. Considering false positives as items that reduce the selectiveness of a pattern, then, the more selective pattern we have, a more accur...
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عنوان ژورنال:
- Journal of the National Medical Association
دوره 78 9 شماره
صفحات -
تاریخ انتشار 1986