Related Experiment Video
Updated: May 10, 2026

Multi-Gene Single Nucleotide Polymorphism Detection in Gastric Cancer Based on Ion Semiconductor Sequencing Platform
Published on: May 10, 2024
Methotrexate-induced pulmonary toxicity
Baruch D Jakubovic1, Andrea Donovan, Peter M Webster
1Faculty of Medicine, University of Toronto, Toronto, Ontario.
Abstract:
Methotrexate is a widely used medication with an array of recognized side effects. The present report describes a case of methotrexate-induced pneumonitis in a patient with psoriasis, and demonstrates the hallmark clinical and investigational findings that support this infrequently encountered diagnosis. The ensuing discussion reviews the pathogenesis, management and prevention of this adverse drug reaction.
Insights
Methotrexate can cause lung inflammation (pneumonitis), a rare side effect. This case highlights key findings for diagnosing and managing this adverse reaction in psoriasis patients.
Area of Science:
- Pulmonology
- Dermatology
- Pharmacology
Background:
- Methotrexate is a common immunosuppressive drug.
- It is frequently used for treating psoriasis.
- Methotrexate has known adverse effects, including potential lung toxicity.
Observation:
- A case report of a patient with psoriasis is presented.
- The patient developed methotrexate-induced pneumonitis.
- This highlights an infrequently encountered diagnosis.
Findings:
- The report details hallmark clinical and investigational findings.
- These findings support the diagnosis of methotrexate-induced pneumonitis.
- The discussion covers pathogenesis, management, and prevention.
Implications:
- Early recognition of methotrexate-induced pneumonitis is crucial.
- Understanding the adverse drug reaction aids in patient management.
- This case contributes to awareness of rare methotrexate side effects.
More Related Videos
Related Concept Videos
Pharmacogenetics of Phase II Enzymes: N-acetyltransferase, Thiopurine S-methyltransferase, UDP-glucuronosyltransferase
Drug Toxicity: Dose-Dependent Reactions
Therapeutic Drug Monitoring: Affecting Factors
Pulmonary Tuberculosis I
Causative Organism
The primary infectious agent causing tuberculosis is Mycobacterium tuberculosis, a slow-growing, acid-fast, aerobic rod that exhibits sensitivity to heat and ultraviolet light. Instances of Mycobacterium bovis and Mycobacterium avium contributing to the development of TB infection are rare.
Mode of...
Pharmacogenetics of Drug Targets: β₂-Adrenergic Receptors, Apo E, Thymidylate Synthase
Drugs for Treatment of Crohn's Disease in IBD Using Immunomodulatory Agents

