DAVID MUSHER / SCIENCE PHOTO LIBRARY DAVID MUSHER / SCIENCE PHOTO LIBRARY
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Flushing or malignant carcinoid syndrome. This symptom occurs as the result of tumoral hormone production. Flushing is a phenomenon in which transient vasodilation causes reddening of the face, head, neck, and the upper chest and epigastric areas. Flushing is the most frequent symptom and may be brief (eg, 2-5 min) or may last for several hours, usually in later disease stages.
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