Malignant diffuse mesothelioma is the most common type of mesothelioma, wit
h a median survival ranging from 8.5 to 18 months after diagnosis. Good per
formance status, absence of chest pain, age < 50 years, and epithelial hist
ology are all associated with improved survival. Several investigators have
described staging systems for this tumor and, have emphasized the importan
ce of thoracoscopy in the diagnosis and staging of the disease. Pleurectomy
is the most common surgery employed to manage patients with diffuse mesoth
elioma, and this procedure is associated with minimal postoperative morbidi
ty and mortality, Because mesothelioma usually recurs locally after surgery
, efforts at optimizing local control have included both intraoperative pho
totherapy and chemotherapy, However, neither of these techniques has demons
trated any significant benefit to date and thus should not be considered as
standards of care. No studies have compared pleurectomy to extrapleural pn
eumonectomy (EPP) in randomized trials. However, nonrandomized series sugge
st a significant improvement in disease-free survival for those undergoing
EPP versus pleurectomy, Other data suggest th:at EPP may improve local cont
rol but may predispose the patient to distant metastases. A randomized comp
arison of these techniques may be beneficial in identifying the most effect
ive procedure for patients with malignant diffuse mesothelioma.