ACMT Toxicology Visual Pearl: Abdominal Bruising

What could cause this finding three days after ingestion of a concentrated household substance?
- Duodenal ulcer
- Gastric perforation
- Necrotizing enterocolitis
- Post-corrosive acute pancreatitis

What could cause this finding three days after ingestion of a concentrated household substance?
The following physical finding would be most consistent with exposure to which of the following?