Paired Primary and Recurrent Rhabdoid Meningiomas: Cytogenetic Alterations, Gene Expression Profile and Patient Outcome.

Rhabdoid meningiomas (RM) are a rare meningioma subtype with a heterogeneous clinical course which is more frequently associated with recurrence, even among tumors undergoing-complete surgical removal. Here, we retrospectively analyzed the clinical-histopathological and cytogenetic features of 29 tumors, from patients with recurrent (seven primary and 14 recurrent tumors) vs. non-recurrent RM ( = 8).

Primary bone lymphoma: polyostotic disease presenting as a cauda equina syndrome.

We report a patient with B-cell primary bone lymphoma with involvement of multiple vertebrae at presentation and rapid development of cauda equina syndrome. The patient presented subacute low-back pain, initially with good response to corticosteroid treatment.Primary bone lymphoma is a very unusual disease, commonly affecting only 1 vertebra.