Choroid plexus papilloma: a clinicopathological study of 23 cases.

BACKGROUND

Choroid plexus papillomas (CPPs) are rare, accounting for less than 1% of all intracranial tumors in adults. However, they are relatively more common in childhood and constitute 1.5 to 4% of intracranial tumors.

DESCRIPTION

They are most often located in the lateral ventricle, followed by the fourth and third ventricles and, rarely, in the cerebellopontine angle. The radiological appearance of a CPP as a cyst with a mural nodule is a curiosity. Bone formation is rare in CPPs and only 6 cases have been described in the literature. Neuromelanin production is also extremely rare and only 2 cases have been reported to date.

CONCLUSION

In the present communication, 23 cases of CPP are analyzed and rare clinical, pathological, and radiological features are described.