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Problem Statements

Tumors are neoplastic lesions while an aneurysm is a non-neoplastic lesion. They all are considered as lesions, why is the modeling for the two types of lesions so different and inconsistent in TU?

TU/TR/RS were originally created for tumor identification and (tumor) disease assessment data. Non-tumor lesion modeling was later added onto TU/TR. RS was also combined with CC in either 2018 or 2019.

Arguments have been made that Tumor finding data modeling is prefaced on “already identified tumors”. TU records are created for each “identified tumor”, with the creation of a unique tumor ID (TULNKID). Since only already identified tumors are mapped to TU, this means, the locations (produced by imaging procedures) where one looked for the presence of a tumor and didn’t find it, is NOT modeled in TU.

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The results for TUTEST = Tumor Identification, are typically TUORRES = Target and Non-target. However results for this test can also be: BONE LESION, measurable/non-measurable, benign/malignant, new, etc. I think the purpose of this test is to identify the “role” of a tumor, such as tumor type, malignancy status, measurability, etc. However, TU domain definition also states that TU is used to identify the location of the tumor, but there . There is no specific test TUTEST associated with the tumor location identification process - tumor locations are treated as a known fact and are mapped to TULOC directly. It isn't clear whether TUTEST = Tumor Identification, is also intended to be used to identify the location of the tumor.

Identified tumors are considered as assessed to be target/non-target according to published criterion (e.g. RECIST) and this is to classify tumors for subsequent disease assessments to treatment (RS).

This doesn’t work for non-tumor lesions, because:

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