# Cancer of Unknown Primary Site

**IRI:** https://folio.openlegalstandard.org/R9wO0KkQsV21vmDQgWAbdjc

## Labels

**Preferred Label:** Carcinoma of Unknown Primary

**Alternative Labels:**

- Cancer of Unknown Primary Origin
- Malignancy of Unknown Origin

## Definition

Cancer where the primary site is unknown after appropriate search refers to a malignant neoplasm for which the origin remains unidentified despite comprehensive diagnostic testing. This condition, also known as carcinoma of unknown primary (CUP), requires tailored treatment approaches due to the uncertainty of its origin and may involve symptoms affecting various organs or systems.

## Sub Class Of

- https://folio.openlegalstandard.org/RDF3VrmH1eapfkrSQstevLs

**Deprecated:** False