Osteoclast-like giant cell tumor of the pancreas

International Journal of Clinical Oncology
Manabu ShiozawaYoshiaki Inayama


A rare case of osteoclast-like giant cell tumor of the pancreas is reported. A 45-year-old woman presented with upper abdominal pain and weight loss. Examination revealed a tumor in the tail of pancreas, and distal pancreatectomy with splenectomy was performed. Pathological findings showed the tumor was composed of two cell types: atypical mononuclear round cells and abundant osteoclast-like multinucleated giant cells with central nucleoli. Immunohistochemical study showed that the atypical cells were strongly reactive for vimentin and negative for CD68, while the giant cells were immunoreactive for CD68, but negative for vimentin. The tumor was diagnosed as osteoclast-like giant cell tumor of the pancreas. We report this case and review 31 cases previously described in the literature.


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