https://wikem.org/w/index.php?action=history&feed=atom&title=Wheal 2026-04-17T12:29:38Z Revision history for this page on the wiki MediaWiki 1.38.2 https://wikem.org/w/index.php?title=Wheal&diff=375563&oldid=prev 2025-01-29T18:40:12Z

<p><span dir="auto"><span class="autocomment">References</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="es"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Revisión anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revisión del 18:40 29 ene 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l43">Línea 43:</td> <td colspan="2" class="diff-lineno">Línea 43:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;references/&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;references/&gt;</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Dermatology]]</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[<ins style="font-weight: bold; text-decoration: none;">Category:</ins>Dermatology<ins style="font-weight: bold; text-decoration: none;">]]</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Symptoms</ins>]]</div></td></tr> </table>

Rossdonaldson1 https://wikem.org/w/index.php?title=Wheal&diff=372619&oldid=prev 2024-02-14T16:06:21Z

<p><span dir="auto"><span class="autocomment">References</span></span></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="es"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Revisión anterior</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revisión del 16:06 14 feb 2024</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l42">Línea 42:</td> <td colspan="2" class="diff-lineno">Línea 42:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==References==</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==References==</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;references/&gt;</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>&lt;references/&gt;</div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Dermatology]]</ins></div></td></tr> </table>

Rossdonaldson1 https://wikem.org/w/index.php?title=Wheal&diff=371603&oldid=prev 2023-09-30T17:22:31Z

<p>Created page with &quot;==Background== *In <a href="/wiki/Urticaria" class="mw-redirect" title="Urticaria">urticaria</a> (hives), both wheals and <a href="/wiki/Angioedema" title="Angioedema">angioedema</a> are present. Wheals result from localized edema of upper dermis, while angioedema results from edema of lower dermal and subcutaneous tissues&lt;ref&gt;Bernstein JA, Moellman J. Emerging concepts in the diagnosis and treatment of patients with undifferentiated angioedema. Int J Emerg Med. 2012 Nov 6;5(1):39. doi: 10.1186/1865-1380-5-39. PMID: 23131076; PMCID: PMC3518251. &lt;/ref&gt; *Mast cell and basophil act...&quot;</p> <p><b>Página nueva</b></p><div>==Background==<br /> *In [[urticaria]] (hives), both wheals and [[angioedema]] are present. Wheals result from localized edema of upper dermis, while angioedema results from edema of lower dermal and subcutaneous tissues&lt;ref&gt;Bernstein JA, Moellman J. Emerging concepts in the diagnosis and treatment of patients with undifferentiated angioedema. Int J Emerg Med. 2012 Nov 6;5(1):39. doi: 10.1186/1865-1380-5-39. PMID: 23131076; PMCID: PMC3518251. &lt;/ref&gt;<br /> *Mast cell and basophil activation involving the release of vasoactive substances<br /> *Broad differential diagnosis of etiologies<br /> **Sometimes iatrogenic; for example, skin wheals from intradermal lidocaine infiltration, allergy skin prick test, tuberculin skin test<br /> <br /> ==Clinical Features==<br /> * Papules that are well-circumscribed but irregular, pruritic, and often with a pale center and red flare on the borders<br /> * Transient duration, usually hours, with spontaneous self-resolution<br /> * If related to anaphylaxis or allergy, may also involve other systems such as respiratory, circulatory, GI <br /> <br /> [[File:Urticarial wheal.jpg|thumb|Urticarial wheal]]<br /> <br /> ==Differential Diagnosis==<br /> *[[Anaphylaxis]]<br /> *[[Acute allergic reaction]]<br /> *[[Contrast induced allergic reaction]]<br /> *[[Acute transfusion reaction]]<br /> *[[Chronic urticaria]]<br /> *[[Dermatographism]]<br /> *[[Cold urticaria]]<br /> <br /> ==Evaluation==<br /> *Clinical diagnosis<br /> **Take a thorough history to assess for precipitating factors, including recent foods, travel, medications/treatments, insect bites/stings, autoimmune disease, viral infections, anaphylaxis history, etc<br /> **Check for association with overlying objects such as watches, jewelry clothing, bands, etc<br /> <br /> ==Management==<br /> * If any suspicion of anaphylaxis, treat with IM [[epinephrine]]<br /> * 2nd gen H1 [[antihistamines]] are effective; if ineffective, consider [[corticosteroids]] and H2 antihistamines&lt;ref&gt;Schaefer P. Acute and Chronic Urticaria: Evaluation and Treatment. Am Fam Physician. 2017 Jun 1;95(11):717-724. PMID: 28671445.&lt;/ref&gt;<br /> * Avoid any causative agent or medications if identified, and treat the underlying illness<br /> <br /> ==Disposition==<br /> *Observe in ED for 4-6 hours until symptoms improve; utilize clinical gestalt<br /> *If anaphylactic picture, after observation discharge with anaphylaxis emergency plan and epipen<br /> <br /> ==See Also==<br /> *[[Angioedema]]<br /> *[[Anaphylaxis]]<br /> *[[Acute allergic reaction]]<br /> <br /> ==References==<br /> &lt;references/&gt;</div>

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