Management of a chest-wall soft-tissue tumor caused by an infection with the larval tapeworm pathogen Taenia crassiceps.

A chest-wall lesion of an immunocompetent patient was initially suspicious for a malignant tumor. Histopathological and polymerase chain reaction examinations revealed an infection with the larval stage of the tapeworm Taenia crassiceps. Curative resection of the tumorous lesion was performed. Treatment options for immunocompromised patients and patients without known immune defect are discussed, because most of the infections occur in immunocompromised individuals. © The American Society of Tropical Medicine and Hygiene.