Acute Ulceronecrotic Gastritis With Cytomegalovirus Reactivation: Uncommon Toxicity of Immune Checkpoint Inhibitors in Microsatellite Instability-High Metastatic Colorectal Cancer

MeSH terms

• Adult
• Colorectal Neoplasms / drug therapy*
• Colorectal Neoplasms / genetics
• Colorectal Neoplasms / immunology
• Cytomegalovirus / immunology
• Cytomegalovirus Infections / chemically induced
• Cytomegalovirus Infections / diagnosis
• Cytomegalovirus Infections / immunology*
• Cytomegalovirus Infections / virology
• Female
• Gastric Mucosa / drug effects
• Gastric Mucosa / immunology
• Gastric Mucosa / pathology
• Gastritis / chemically induced
• Gastritis / diagnosis
• Gastritis / immunology*
• Gastritis / pathology
• Humans
• Immune Checkpoint Inhibitors / adverse effects*
• Ipilimumab / adverse effects
• Microsatellite Instability
• Necrosis / chemically induced
• Necrosis / diagnosis
• Necrosis / immunology
• Necrosis / pathology
• Nivolumab / adverse effects
• Stomach Ulcer / chemically induced
• Stomach Ulcer / diagnosis
• Stomach Ulcer / immunology*
• Stomach Ulcer / pathology
• Virus Activation / immunology