# Secondary syphilis mimicking marginal zone B-cell lymphoma in a 70-year-old man

**Authors:** Hannah Gier, Shannon Trotter

PMC · DOI: 10.1016/j.jdcr.2025.08.006 · JAAD Case Reports · 2025-08-25

## Full-text entities

- **Diseases:** penicillin allergy (MESH:D008586), fever (MESH:D005334), fatigue (MESH:D005221), lymphadenopathy (MESH:D008206), Secondary syphilis (MESH:C536773), malignancy (MESH:D009369), cutaneous pseudolymphoma (MESH:D019310), hyperpigmentation (MESH:D017495), inflammation (MESH:D007249), syphilis (MESH:D013587), erythema (MESH:D004890), granulomas (MESH:D006099), lymphoma (MESH:D008223), lymphoproliferative disorder (MESH:D008232), B-cell lymphoma (MESH:D016393), marginal zone B-cell lymphoma (MESH:D018442), papulonodular eruption (MESH:D003875), infection (MESH:D007239), chills (MESH:D023341)
- **Chemicals:** doxycycline (MESH:D004318), RPR (-)
- **Species:** Treponema pallidum (species) [taxon 160], Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

4 references — full list in the complete paper: https://tomesphere.com/paper/PMC12969415/full.md

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Source: https://tomesphere.com/paper/PMC12969415