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Updated: Jun 8, 2026

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Teratoma Generation in the Testis Capsule
Published on: November 7, 2011
An unusual testicular lump.
A de Silva1, J D Lee, I W C Macdonald
1Chadwick Clinic for Sexual Health, Dewsbury and District Hospital, Dewsbury, UK.
International Journal of STD & AIDS
|September 21, 2010
Summary
A testicular gumma, a syphilis manifestation, can mimic a tumor. Routine syphilis testing is crucial for accurate diagnosis and to avoid misdiagnosis of testicular lesions.
Area of Science:
- Urology
- Infectious Diseases
- Pathology
Background:
- Testicular tumors are a significant concern in urological diagnostics.
- Syphilis, caused by Treponema pallidum, can present with diverse clinical manifestations.
Observation:
- A 32-year-old British Asian man presented with a lesion clinically and sonographically suspicious for a testicular tumor.
- Initial presentation mimicked a malignant neoplasm of the testis.
Findings:
- Histopathology and polymerase chain reaction (PCR) confirmed the lesion as a gumma, a granulomatous manifestation of tertiary syphilis.
- Syphilis serology was positive, confirming the diagnosis of Treponema pallidum infection.
Implications:
- This case highlights the importance of considering syphilis in the differential diagnosis of testicular masses.
- Routine syphilis serology should be considered in patients presenting with testicular lesions, even if they appear neoplastic.
- Failure to perform syphilis testing could lead to delayed or incorrect diagnosis and treatment.
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