Solitary benign parietal lesions seen on CT in cancer patients

Benign skull lesions are routinely encountered in clinical practice. The aim of this review is to describe the Computed tomography (CT) findings of solitary benign parietal lesions. Benign parietal bone lesions can exist in patients with history of cancer. Metastasis to the calvarium is rare compared to other sites in the body and primary skull tumors are even rarer. This is the second report of solitary cholesteatoma occurring in the parietal bone. All the clinical cases in this study were histologically proven. Benign solitary parietal lesions can have non-specific features on CT and in some cases, only biopsy can give a definite diagnosis.