e-ISSN: Pending
Negative / Null Result ReportOpen accessMedicine

Ampullary carcinoma detected incidentally during ERCP: a case report and literature review.

Zhang H; Wu W; Xu J · 2026 · Frontiers in oncology

WASTE classifies this as Negative / Null Result Report · AI classification, approximate

The study found no significant effect — useful as a negative control or null benchmark for your own design.

Abstract (excerpt)

Early ampullary tumors are challenging to diagnose due to their complex surrounding structures and deep anatomical location. We report a rare case in which enhanced computed tomography (CT), magnetic resonance imaging (MRI), magnetic…

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Metadata source: Europe PMC · DOI 10.3389/fonc.2026.1840198