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- Dahls_sign abstract "Dahl's sign (also Thinker's sign or Target sign) is a clinical sign in which areas of hyperpigmentation are seen on the skin of the lower thighs and elbows. It occurs in patients with longstanding severe chronic obstructive pulmonary disease.The sign occurs because patients with COPD tend to sit forwards with their arms resting on their thighs, leading to chronic erythema of the skin at the points of contact. Over time, haemosiderin released from red blood cells trapped in the skin is released causing a brown discolouration of the skin.Air trapping in the lungs of COPD patients causes the diaphragm to be pushed down and flattened, which reduces the effect of contraction of the diaphragm during inspiration. Sitting forwards pushes the abdominal contents upwards, increasing the curvature of the diaphragm and improving its effectiveness.Bilateral cubital tunnel syndrome may also be found in patients with Dahl's sign.Dahl's sign was described by K.V. Dahl in 1970.".
- Dahls_sign wikiPageID "22169024".
- Dahls_sign wikiPageLength "1656".
- Dahls_sign wikiPageOutDegree "13".
- Dahls_sign wikiPageRevisionID "545610017".
- Dahls_sign wikiPageWikiLink Air_trapping.
- Dahls_sign wikiPageWikiLink Category:Medical_signs.
- Dahls_sign wikiPageWikiLink Chronic_obstructive_pulmonary_disease.
- Dahls_sign wikiPageWikiLink Elbow.
- Dahls_sign wikiPageWikiLink Erythema.
- Dahls_sign wikiPageWikiLink Hemosiderin.
- Dahls_sign wikiPageWikiLink Hyperpigmentation.
- Dahls_sign wikiPageWikiLink Inhalation.
- Dahls_sign wikiPageWikiLink Medical_sign.
- Dahls_sign wikiPageWikiLink Red_blood_cell.
- Dahls_sign wikiPageWikiLink Thigh.
- Dahls_sign wikiPageWikiLink Thoracic_diaphragm.
- Dahls_sign wikiPageWikiLink Ulnar_nerve_entrapment.
- Dahls_sign wikiPageWikiLinkText "Dahl's sign".
- Dahls_sign wikiPageUsesTemplate Template:Reflist.
- Dahls_sign subject Category:Medical_signs.
- Dahls_sign hypernym Sign.
- Dahls_sign type Broadcaster.
- Dahls_sign type Sign.
- Dahls_sign comment "Dahl's sign (also Thinker's sign or Target sign) is a clinical sign in which areas of hyperpigmentation are seen on the skin of the lower thighs and elbows. It occurs in patients with longstanding severe chronic obstructive pulmonary disease.The sign occurs because patients with COPD tend to sit forwards with their arms resting on their thighs, leading to chronic erythema of the skin at the points of contact.".
- Dahls_sign label "Dahl's sign".
- Dahls_sign sameAs Q5208858.
- Dahls_sign sameAs علامة_داهل.
- Dahls_sign sameAs m.05q969m.
- Dahls_sign sameAs Q5208858.
- Dahls_sign wasDerivedFrom Dahls_sign?oldid=545610017.
- Dahls_sign isPrimaryTopicOf Dahls_sign.