The authors describe a rare case of inflammatory pseudotumor involving the clivus, where a soft tissue mass lesion, with extension into the prevertebral retropharyngeal space and the cavernous sinuses, was detected by CT and MRI. The mass resembled a malignant tumor or aggressive infectious lesion, and the final diagnosis of inflammatory pseudotumor was a diagnosis of exclusion, decided after histopathological examination.
Adult ; Bone Diseases/*diagnosis ; Case Report ; Cranial Fossa, Posterior/*pathology/*radiography ; Granuloma, Plasma Cell/*diagnosis ; Human ; *Magnetic Resonance Imaging ; Male ; *Tomography, X-Ray Computed

We report a rare case of petroclival craniopharyngioma with no connection to the sellar or suprasellar region. MRI and CT images revealed a homogenously enhancing retroclival solid mass with aggressive skull base destruction, mimicking chordoma or aggressive sarcoma. However, there was no calcification or cystic change found in the mass. Here, we report the clinical features and radiographic investigation of this uncommon craniopharyngioma arising primarily in the petroclival region.
Cranial Fossa, Posterior/*pathology/radiography/surgery ; Craniopharyngioma/*diagnosis/radiography/surgery ; Humans ; Magnetic Resonance Imaging ; Male ; Middle Aged ; Pituitary Neoplasms/*diagnosis/radiography/surgery ; Skull Base Neoplasms/*diagnosis/radiography/surgery ; Tomography, X-Ray Computed