Clinical Cases  ·  Allergy and Immunology Vol. I  ·  Asthma & Related Lung Disease
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Allergy and Immunology

Asthma & Related Lung Disease

12 cases on allergic-versus-eosinophilic biologic selection, ABPA and sub-threshold fungal sensitization (SAFS), occupational asthma, fibrotic hypersensitivity pneumonitis, EGPA with new organ involvement, dust-mite sublingual immunotherapy, omalizumab dosing-table edge cases, long-term omalizumab discontinuation and inter-biologic switching, discordant biomarker phenotypes, and omalizumab continuation through pregnancy — choose a case below to open its full multi-voice debate.

Allergy and ImmunologyAsthma & Related Lung Disease
Two Readings of One Eosinophil Count: Choosing a First Biologic for Severe Asthma

A florist with severe asthma tests positive for both allergic and eosinophilic pathways — a case about which biomarker actually drives a first biologic choice.

Case 0001
Allergy and ImmunologyAsthma & Related Lung Disease
Itraconazole and an Inhaled Steroid: The Interaction Hiding Inside an ABPA Regimen

A relapsing ABPA case where adding itraconazole surfaces a real CYP3A4 interaction with the patient's own inhaled corticosteroid.

Case 0002
Allergy and ImmunologyAsthma & Related Lung Disease
Short of the ABPA Line: Does a Failed Diagnostic Threshold Change What Gets Prescribed

A patient falls just short of full ABPA criteria — a case about whether a diagnostic threshold should determine which therapy comes first.

Case 0003
Allergy and ImmunologyAsthma & Related Lung Disease
Staying at the Ovens: Weighing Guideline-Ideal Removal Against a Baker's Actual Options

A baker with confirmed flour-induced occupational asthma weighs guideline-preferred removal against the real cost of leaving his only trade.

Case 0004
Allergy and ImmunologyAsthma & Related Lung Disease
The Birds Stayed: Treating Fibrotic Lung Disease That Outlasted an Antigen Removed Too Late

A bird fancier's lung case where antigen avoidance came too late — a case about treating fibrotic hypersensitivity pneumonitis once decline continues past removal.

Case 0005
Allergy and ImmunologyAsthma & Related Lung Disease
A New Heart Finding Changes the EGPA Regimen: Biologic-First or Cyclophosphamide Now

A new EGPA diagnosis with asymptomatic cardiac involvement tests whether the biologic era's real advances apply to an organ-threatening presentation.

Case 0006
Allergy and ImmunologyAsthma & Related Lung Disease
More Than Rhinitis: Starting Dust Mite Sublingual Tablets to Change an Asthma Trajectory

A patient asking about allergy shots for rhinitis turns out to be a real candidate for asthma-modifying immunotherapy — if his own numbers clear the right bar.

Case 0007
Allergy and ImmunologyAsthma & Related Lung Disease
Off the Dosing Table: An IgE and Weight the Omalizumab Label Never Anticipated

A patient's IgE and weight fall outside every cell of the omalizumab dosing table — a case about choosing a biologic when the best-matched drug has no defined dose.

Case 0008
Allergy and ImmunologyAsthma & Related Lung Disease
Five Quiet Years on Omalizumab: Testing Whether the Drug Is Still Doing the Work

Five exacerbation-free years on omalizumab raise a real question — a case about how to safely test whether a long-term biologic is still needed.

Case 0009
Allergy and ImmunologyAsthma & Related Lung Disease
Neither Clearly Allergic Nor Clearly Eosinophilic: A Biologic Choice With No Dominant Marker

A patient's asthma biomarkers are all negative or borderline — a case about choosing a biologic when no single marker points clearly to a phenotype.

Case 0010
Allergy and ImmunologyAsthma & Related Lung Disease
Four Months on Omalizumab, Still Exacerbating: How Long Counts as an Adequate Trial

A patient still exacerbating four months into omalizumab raises a real question — how long counts as an adequate trial before switching biologics.

Case 0011
Allergy and ImmunologyAsthma & Related Lung Disease
A Second Trimester and a Working Biologic: Continuing Omalizumab Through Pregnancy

A pregnant woman on long-term omalizumab asks whether to stop — a case about weighing registry safety data against the real risks of uncontrolled asthma in pregnancy.

Case 0012
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