Related Experiment Videos
[Cancers of unknown origin: 311 cases]
A Lortholary1, S Abadie-Lacourtoisie, O Guérin
1Centre Paul-Papin, 2, rue Moll, 49033 Angers.
Bulletin Du Cancer
|July 19, 2001
Summary
Carcinoma of unknown primary (CUP) is metastatic disease without a known primary site, affecting 1.6% of adult tumors. Female sex, good performance status, squamous cell carcinoma, and single metastasis site improve prognosis.
Area of Science:
- Oncology
- Pathology
Context:
- Carcinoma of unknown primary (CUP) is defined as metastatic disease where the primary tumor site is not identified through clinical, radiological, or endoscopic examination.
- CUP accounts for 1.6% to 15% of all adult malignancies, presenting a diagnostic and therapeutic challenge.
Purpose:
- To determine the incidence of CUP.
- To assess the utility of identifying the primary tumor site.
- To evaluate treatment efficacy and survival rates.
- To identify prognostic factors for optimizing strategic choices in managing CUP.
Summary:
- A retrospective, monocentric study analyzed 311 CUP cases from 1980-1995, representing 1.6% of treated tumors.
- Histological subtypes included adenocarcinoma, squamous cell carcinoma, undifferentiated carcinoma, and neuroendocrine tumors.
- The primary site was identified in only 6% of cases. Median survival was 9 months.
- Positive prognostic factors identified through multivariate analysis were female sex, good performance status (PS < 2), squamous cell histology, and a single metastatic site.
Impact:
- This study highlights the low rate of primary site identification in CUP and identifies key factors influencing patient survival.
- Findings can aid in refining diagnostic strategies and tailoring treatment approaches for better patient outcomes in CUP management.