Multiple Brownish Patches on the Trunk in a Patient With Neck Masses
A patient with a history of lung adenocarcinoma had violaceous-to-brown cutaneous patches and plaques. Computed tomography showed splenomegaly and multicentric lymphadenopathy, and laboratory testing showed an elevated erythrocyte sedimentation rate and levels of IgG, IgG4, IgA, and interleukin 6. What is the diagnosis and what would you do next?
Authors
- Yng Sun (ORCID: https://orcid.org/0000-0002-8316-8444)
- Yi-Shan Teng (ORCID: https://orcid.org/0009-0006-0327-464X)
Institutions
- Kaohsiung Medical University (TW)
- Kaohsiung Medical University Chung-Ho Memorial Hospital (TW)
- Aesthetic Surgery Center (US)
Publication Details
- Journal
- JAMA
- Published
- 2026-10-07
- DOI
- https://doi.org/10.1001/jama.2026.13891
- Primary Topic
- IgG4-Related and Inflammatory Diseases
- Type
- article
- Field-Weighted Citation Impact
- 0.00