Understanding Lab Tests for Testosterone-Producing Tumor
Written by Private MD Labs Medical Writing Team • Last Updated: September 8, 2025
A testosterone-producing tumor is a rare hormone-secreting growth that can develop in various organs including the adrenal glands, ovaries, or testes. These tumors cause excessive production of testosterone, leading to abnormally high hormone levels that can be detected through specialized blood testing.
Top Recommended Test
Testosterone Total LC/MS/MS
This highly accurate test measures the total amount of testosterone in the blood using advanced LC/MS/MS technology. Testosterone-producing tumors cause overproduction of this hormone, resulting in significantly elevated levels that would be clearly detected through this comprehensive measurement.
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How Blood Tests Help Detect Testosterone-Producing Tumors
While imaging studies are typically needed to locate and confirm the presence of a tumor, blood tests play a crucial role in the initial detection and diagnosis. Significantly elevated testosterone levels, particularly when they exceed normal ranges dramatically, can be the first indicator of a hormone-producing tumor and prompt further investigation.
Other Relevant Tests
Testosterone, Free, LC/MS/MS
This test specifically measures the active, unbound form of testosterone in the blood. Extremely high levels of free testosterone can be a strong indicator of a testosterone-producing tumor located in the adrenal glands, pituitary gland, or other hormone-producing tissues.
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Understanding Your Results
Both total and free testosterone measurements provide valuable information for diagnosis. Markedly elevated levels, especially when accompanied by clinical symptoms such as virilization in women or other hormonal imbalances, warrant immediate medical evaluation and typically lead to imaging studies to locate the source of excess hormone production.
Important Considerations
The information here is for educational purposes only and is not a substitute for professional medical advice. Always consult with a healthcare provider for diagnosis and treatment. Suspected hormone-producing tumors require prompt medical attention and comprehensive evaluation.
