[Surgical treatment of unicentric plasma cell histological type Castleman's disease].

Introduction: Castleman's disease or angiofollicular lymph hyperplasia is a rare disease with two identified clinical forms. Unicentric or localized form is characterized by isolated growth of lymph nodes, most often in mediastinum, and multicentric form is expressed as systemic disease with spread lymphadenopathy, organomegaly and presence of general symptoms of the disease. Histological types are hyalovascular, plasma-cell and transitive (mixed) cell.

Symptomatic idiopathic noncommunicating intradural arachnoid cyst of the S1 nerve root: a case report.

Study Design: A case report of a rare symptomatic, idiopathic, noncommunicating intradural arachnoid cyst (IAC) of the proximal part of the S1 nerve root (NR).

Objective: To discuss the possible pathophysiology, clinical and magnetic resonance imaging (MRI) presentation, intraoperative findings, and follow-up of IAC of the proximal part of the S1 NR.

Summary Of Background Data: Rare variety of the Nabors's Type 3 spinal IAC.

Genetic alterations in B-cell non-Hodgkin's lymphoma.

Background: Although the patients with diagnosed B-NHL are classified into the same disease stage on the basis of clinical, histopathological, and immunological parameters, they respond significantly different to the applied treatment. This points out the possibility that within the same group of lymphoma there are different diseases at molecular level. For that reason many studies deal with the detection of gene alterations in lymphomas to provide a better framework for diagnosis and treatment of these hematological malignancies.