Expansion of radiofrequency ablation volume by saturated NaCl saline injection in the area of vaporization.

Background: Vaporization around the radiofrequency (RF) electrode after RF application (RFA) limits the RF ablation area.

Purpose: To determine whether saturated saline injected into the area of vaporization after initial RFA extends ablation area after further RFA.

Material And Methods: RFA was performed in 18 ex vivo porcine livers and four in vivo rabbit erector spinae muscles.

Giant cell (temporal) arteritis involving both external and internal carotid arteries.

A 76-year-old woman with giant cell (temporal) arteritis was described; she presented with a one year history of headache and tinnitus. Histopathological findings from a superficial temporal artery showed arteritis with granulomatous changes. Bilateral carotid arteriograms demonstrated the stenoses of both internal carotid arteries as well as the narrowing of the superficial temporal arteries.

Adenocarcinoma mimicking primary gastric lymphoma demonstrated by I-123 IMP scintigraphy.

A poorly differentiated adenocarcinoma of the stomach showed an unusual type of diffuse wall thickening of the entire stomach, similar to that seen in malignant lymphoma. The pathologic specimen revealed a "lymphoepithelioma"-like pattern of undifferentiated carcinoma with intense lymphocyte and plasma cell infiltration. I-123 IMP scintigraphy incidentally demonstrated increased uptake in the entire stomach on early imaging and moderate washout on delayed studies.