Histologically intact human adenocarcinoma of the lung maintained in n
ude mice by serial subcutaneous transplantations (4 generations) was h
arvested and transplanted to the parietal pleura of 11 other nude mice
via a novel thoracotomy procedure. Local and regional tumor growth of
transplanted tumors occurred in all cases within 31 days, resulting i
n weight loss, decreased physical activity and death. This rapid-growt
h <<patient-like>> model of direct transplantation of a human neoplasm
to the patietal pleura may facilitate basic research of pleural malig
nancies, and stimulate studies of pleural tumor response to cytotoxic
treatment, biologic modifiers, and other modalities of treatment.