Harrison's groove

Harrison's groove, also known as Harrison's sulcus, is a horizontal groove along the lower border of the thorax corresponding to the costal insertion of the diaphragm; it is usually caused by chronic asthma or obstructive respiratory disease. It may also appear in rickets because of defective mineralisation of the bones by calcium necessary to harden them; thus the diaphragm, which is always in tension, pulls the softened bone inward. During rickets it is due to the indentation of lower ribs at the point of attachment of diaphragm.

Harrison's groove
Differential diagnosischronic asthma

It is named after Edwin Harrison.[1]

References
  1. Naish, J.; Wallis, H. R. E. (20 March 1948). "Significance of Harrison's Grooves". BMJ. 1 (4550): 541–544. doi:10.1136/bmj.1.4550.541. PMC 2090024. PMID 18909481.

Further reading
  • Mark Dennis; William Talbot Bowen; Lucy Cho (16 November 2015). Mechanisms of Clinical Signs INK. Elsevier Health Sciences. pp. 119–120. ISBN 978-0-7295-8559-0.
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