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GTR Home > Conditions/Phenotypes > Hereditary diffuse gastric adenocarcinoma

Summary

Excerpted from the GeneReview: Diffuse Gastric and Lobular Breast Cancer Syndrome
Diffuse gastric and lobular breast cancer syndrome (DGLBCS) is associated with an increased risk, in males and females, of diffuse gastric cancer (DGC), a poorly differentiated adenocarcinoma (also referred to as signet ring cell carcinoma or isolated cell-type carcinoma) that infiltrates into the stomach wall, causing thickening of the wall (linitis plastica) without forming a distinct mass. In females with CDH1-related DGLBCS, but not in males, there is also an increased risk for lobular breast cancer (LBC), characterized by small, non-cohesive cells dispersed in the stroma or arranged in single-file infiltrating patterns. Cleft lip with or without cleft palate has also been reported in some individuals with CDH1-related DGLBCS.

Genes See tests for all associated and related genes

  • Also known as: Arc-1, BCDS1, CD324, CDHE, ECAD, LCAM, UVO, CDH1
    Summary: cadherin 1

Clinical features

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Suggested reading

Practice guidelines

  • NCCN, 2023
    NCCN Clinical Practice Guidelines in Oncology (NCCN Guidelines®) Gastric Cancer, 2023

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