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has been cited by the following article:

• TITLE: Markedly Elevated Serum CA 19-9 in Metastatic Lung Adenocarcinoma: A Diagnostic Challenge

  AUTHORS: Boon Hau Ng, Hsueh Jing Low, Nik Nuratiqah Nik Abeed, Nor Safiqah Sharil, Rose Azzlinda Osman, Andrea Yu-Lin Ban

  KEYWORDS: CA 19-9, Lung Adenocarcinoma, Tumour Markers

  JOURNAL NAME: Open Access Library Journal, Vol.11 No.9, September 30, 2024

  ABSTRACT: Carbohydrate antigen 19-9 (CA 19-9) is a tumour-associated biomarker predominantly linked to pancreatic and colorectal cancers. Elevated serum levels of CA 19-9 in lung adenocarcinoma are rare, with few cases documented in the literature. Herein, we present two cases of metastatic lung adenocarcinoma with markedly elevated CA 19-9 levels, initially leading to a diagnostic suspicion of a pancreatic malignancy.