Often, anemia caused by chronic diseases goes undetected until a routine test such as a complete blood count (CBC) reveals abnormal results.
[labtestsonline.org]
The specific symptoms of the upper gastrointestinal tract that patients were asked about included dysphagia, odynophagia, heartburn, dyspepsia, nausea, vomiting, anorexia,
[doi.org]
This is the Paterson-Brown-Kelly syndrome (or Plummer-Vinson syndrome) and there is an association with oesophageal carcinoma.
[patient.info]