Cerebral salt wasting syndrome in a patient with primary CNS lymphoma.

Background: In patients with severe central nervous system (CNS) diseases, life-threatening hyponatremia results from two main causes: the syndromes of inappropriate secretion of antidiuretic hormone (SIADH) and cerebral salt wasting (CSW). Clinical manifestations of the two conditions may be similar but their pathogeneses are fundamentally diverse. Distinguishing SIADH from CSW is based on the differential diagnoses of dilutional hyponatremia due to an excessive amount of water in the body (SIADH) and depletional hyponatremia caused by extensive natriuresis (CSW).

Spontaneous consolidation of scaphoid nonunion in a child.

Background: Scaphoid nonunion is very rare in childhood.

Case Report: A 14 year old boy with scaphoid nonunion confirmed with CT did not past scheduled surgery. In spite of the short period of immobilisation union occurred and two years after the injury he was completely asymptomatic.

Comparison of magnetic resonance imaging and (67)gallium scintigraphy in the evaluation of posttherapeutic residual mediastinal mass in the patients with Hodgkin's lymphoma.

Introduction: Detection of residual disease following the completion of primary treatment in Hodgkin's lymphoma (HL) patients diagnosed with mediastinal tumor mass has an exceptional importance in the assessment of therapeutic response. Magnetic resonance imaging (MRI) and (67)gallium ((67)Ga) scintigraphy can be used to identify active tumor tissue in the mediastinal residuum.

Aims: To evaluate: the accuracy of MRI and (67)Ga scintigraphy in the prediction of clinical HL relapse/progression; congruence of findings and the probability of mediastinal disease relapse/progression regarding to the detection of active/inactive tissue by both imaging methods.