Imaging of giant tumours involving the anterior skull base.

Tumours involving the anterior skull base are a challenge in diagnosis and treatment. They may arise from the bony skull base itself, intracranially or from the sinonasal tract and orbit. It is often difficult to determine the site of origin of giant tumours as anatomical boundaries are frequently breached. Accurate imaging evaluation is useful in planning treatment and may help in the differential diagnosis. We review those CT and MRI features of giant anterior cranial fossa tumours which may be helpful in identifying a pre-operative diagnosis.

Imaging features of pelvic endometriosis.

Although laparoscopy remains the investigation of choice in the diagnosis of endometriosis, imaging does play a significant role in its management. This pictorial review concentrates on the techniques used in the imaging of endometriosis.

MRI appearances of bladder endometriosis.

Endometriosis is characterized by endometrial tissue in ectopic foci outside the uterus. Involvement of the urinary tract is rare, with the bladder being most commonly affected in these cases. Radiologically these lesions, which are usually small, may be difficult to distinguish from intrinsic bladder neoplasia. Four cases of vesical endometriosis are presented with the MRI features that suggest the diagnosis.

An unusual cause of nasal septum perforation.

We present a case where the use of magnetically held earring clips in the nose led to an unfortunate series of events resulting in perforation of the nasal septum.