The clinical features of a patient with an intra-abdominal cystic mass
do not lead to a specific diagnosis. Aspiration is usually ineffectiv
e because the mass recurs and cytologic investigation is often non-dia
gnostic. Conservative management is unsuccessful because symptoms ofte
n persist. Surgical management of cystic masses is required for defini
tive management and pathologic diagnosis. A laparoscopic approach to t
he diagnosis and treatment can provide essential anatomic information
and a complete resection with minimal morbidity. A laparoscopic techni
que using 3 trocars and maintaining the integrity of the mass allows c
omplete excision and removal of large intra-abdominal cystic masses as
reported in a 43-year-old patient with a large intra-abdominal cystic
mass identified as a benign cystic mesothelioma.