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Appendiceal mucinous lesions
HAMN:
high-grade appendiceal mucinous neoplasm
LAMN:
low-grade appendiceal mucinous neoplasm
Although by definition LAMNs do not invade,
their expansile growth may push and thin the appendiceal wall until the appendix ruptures,
and the resultant spillage of cellular or acellular mucin may lead to pseudomyxoma peritonei (PMP)