Generally, benign lesions, which make up the majority of mediastinal tumors
and cysts, are asymptomatic; however, they may produce clinical findings.
We report on a patient with presumed silent esophageal perforation whose cl
inical and radiologic assessment was suggestive of massive paraesophageal h
iatus hernia. However, surgery revealed a paraesophageal cyst and histology
was reported as acute organizing pleurisy. A reasonable, tentative, preope
rative diagnosis for each mediastinal lesion can be frequently made by cons
idering its location in the mediastinum, the age of the patient, the presen
ce or absence of local or constitutional symptoms and signs, and the associ
ation of a specific systemic disease state. However, the precise nature of
a lesion in the mediastinum, as elsewhere, cannot be determined without his
tologic examination of the tissue. To our knowledge, this unusual clinical
case is not been reported in the literature.