Inflammatory Pseudotumor


Inflammatory pseudotumor of the skull base is a lesion near on in the lower parts of the skull.  When viewed with a microscope the lesion consists of multiple types of immune system cells and other cells, which together represent inflammation.  Pseudo (like a) tumor refers to symptoms, signs and radiology appearance similar to cancer without microscopic findings to suggest that the lesion is a malignant cancer.  Inflammatory pseudotumor can occur in many locations in the body other than the skull base, with the most common being the lung and eye socket.