Medulloblastomas are generally associated with childhood, but 14-30% occur in adults, accounting for 1% of adult central nervous system tumors. While approximately one third of adult medulloblastomas present as vermian tumors similar to those seen in childhood, the majority differ substantially from the childhood variety. In this series of 13 patients, 5 had lateral, seemingly extra-axial masses in the cerebellopontine angle or at the tentorium, simulating meningiomas or acoustic neuromas, but angiographic hypovascularity in 2 of the latter suggested a diagnosis other than meningioma. Of 4 paramedian tumors, 3 diffusely infiltrated the cerebellar white matter, showed little or no gadolinium enhancement and were not associated with hydrocephalus. Hydrocephalus was present in less than half of our patients; in childhood the reported incidence is 85-100%. A possible association with pregnancy was noted.

Medulloblastomas are generally associated with childhood, but 14-30% occur in adults, accounting for 1% of adult central nervous system tumors. While approximately one third of adult medulloblastomas present as vermian tumors similar to those seen in childhood, the majority differ substantially from the childhood variety. In this series of 13 patients, 5 had lateral, seemingly extra-axial masses in the cerebellopontine angle or at the tentorium, simulating meningiomas or acoustic neuromas, but angiographic hypovascularity in 2 of the latter suggested a diagnosis other than meningioma. Of 4 paramedian tumors, 3 diffusely infiltrated the cerebellar white matter, showed little or no gadolinium enhancement and were not associated with hydrocephalus. Hydrocephalus was present in less than half of our patients; in childhood the reported incidence is 85-100%. A possible association with pregnancy was noted.

Ultrasound measurements yield comparable results in both BP and VP, if the vBPD is used. In our opinion, ultrasonic weight estimation is a useful adjunct when determining the manner of delivery in BP.

43 patients suspected clinically of having tumours of the adnexa were examined by MR and 40 by endosonography in a prospective study. All underwent surgery. Correct lateralisation of the tumour was achieved by MR in 39 out of 43 cases (91%) and by endosonography in 32 out of 40 cases (80%). By means of MR it was possible to recognise the affected organ in 79%, and by vaginal sonography in 70% of women. Prediction of malignancy was possible with MR in 39 out of 43 cases (91%) and by endosonography in 30 out of 40 cases (75%). Infiltration into the omentum and gut and peritoneal metastases was missed by both methods (4 out of 4 cases).

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