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Copious sputum, settling into three layers
    Differential Diagnosis[Top] [Nav]
bronchiectasis, lung abscess (?), chronic bronchitis
    Discussion -- not available online[Top] [Nav]
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  • Bronchorrhea is defined as the production of more than 100 ml of sputum per day. (Persons with chronic bronchitis produce an average of 25 ml/day.) Bronchorrheic sputum separates into two layers. "These large amounts of secretion may be produced so quickly that polymerization is incomplete and proceeds even after the secretion has left the bronchial tree, which may also explain the separation into two layers: as the molecules become polymerized their buoyancy increases, causing them to float." [101]
    Footnotes in Print Edition[Top] [Nav]
    (1) Sputum: Its Microscopy and Diagnostic and Prognostic Significances.
  Troup F. Edinburgh: Oliver & Boyd, 1886: 188-189, 193-194.
    (2) Pulmonary Diseases and Disorders.
  Fishman AP. New York: McGraw-Hill, 1980: 103, 1053, 1215.
    (3) Textbook of Pulmonary Diseases. 3rd ed.
  Baum GL, Wolinsky E (eds). Boston: Little, Brown, 1983: 625.
    New References[Top] [Nav]
    101.Bronchorrhoea.
  Lopez-Vidriero M, Charman J, et al.   Thorax 1975 Dec;30(6):624-30.  Pubmed+Abstract  Similars
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    ©1986-2000 John Sotos, MD. All rights reserved.  Last updated 16:34 PDT on July 4, 2000.[Top]

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