5-HIAA

Measures urinary 5-hydroxyindoleacetic acid levels to evaluate serotonin metabolism in carcinoid syndrome.

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ROS 1 by IHC

Detects ROS1 protein expression by immunohistochemistry, aiding in lung cancer diagnosis.

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ROS 1 by NSCLC

Assesses ROS1 gene rearrangements in non?small cell lung cancer to guide targeted treatment.

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