Pseudomyxoma peritonei (PMP) may be caused by lesions with histologic changes that may range from benign to malignant. Although the prognosis for a malignant tumor is worse, even benign adenomucinosis can cause significant morbidity and mortality.
Diagnosis
Abbreviation
Histology
disseminated peritoneal adenomucinosis
DPAM
benign (very low grade)
peritoneal mucinous carcinomatosis with intermediate (or discordant) features
PMCA-I
PMCA-I/D
intermediate
peritoneal mucinous carcinomatosis
PMCA
malignant (high grade)
where:
• PMCA is associated with evidence of aggressive growth including ymph node metastases and large solid tumor nodules (caking).
Abbreviation
Prognosis
10 Year Survival
DPAM
fair to good
68%
PMCA-I/D
guarded to poor
21%
PMCA
poor to very poor
3%
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