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Updated: Oct 11, 2025

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Isolation and Characterization of Tumor-initiating Cells from Sarcoma Patient-derived Xenografts
Published on: June 13, 2019
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[Sarcoidosis with primary presentation as tumour testis].
Kristian Strand Mathiasen1, Marina Lunetcas
1kristian.strand.mathiasen.01@regionh.dk.
Ugeskrift for Laeger
|December 1, 2021
Summary
A rare case of testicular sarcoidosis mimicked cancer in a 29-year-old man. Early diagnosis of this granulomatous disease is crucial for proper management and avoiding unnecessary treatments.
Area of Science:
- Urology
- Pathology
- Radiology
Background:
- Testicular masses often raise suspicion for malignancy, necessitating thorough diagnostic evaluation.
- Sarcoidosis is a systemic inflammatory disease characterized by granuloma formation, typically affecting the lungs but capable of impacting any organ.
- Testicular involvement in sarcoidosis is exceptionally uncommon, presenting diagnostic challenges.
Observation:
- A 29-year-old male presented with a testicular mass initially suspected to be cancer.
- Histological examination of biopsies revealed granulomatous inflammation, not malignancy.
- Systemic symptoms prompted a PET/CT scan, which indicated sarcoidosis.
Findings:
- The patient's testicular mass was histopathologically confirmed as granulomatous inflammation.
- Positron Emission Tomography/Computed Tomography (PET/CT) imaging revealed systemic sarcoidosis.
- The clinical presentation mimicked testicular cancer, highlighting a rare differential diagnosis.
Implications:
- This case underscores the importance of considering sarcoidosis in the differential diagnosis of testicular masses, even when cancer is suspected.
- Accurate and timely diagnosis of testicular sarcoidosis is essential to guide appropriate treatment and management strategies.
- Increased awareness of rare presentations of sarcoidosis can improve patient outcomes and reduce misdiagnosis.
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