Lipomatous hypertrophy of the atrial septum (LHAS) is an infrequently observed entity
characterized by an unencapsulated proliferation of mature and multivacuolated adipose tissue …

False-positive findings suggestive of metastatic functioning thyroid carcinoma have been
well documented in I-131 whole-body imaging. These artifacts are often associated with …

For many years it has been known that the sensitivity of bone scanning to the presence of
destructive bony lesions favors its use in screening for bone metastases and osteomyelitis. …

A case of idiopathic pulmonary fibrosis with multiple areas of mismatch on ventilation-perfusion
lung imaging in the absence of pulmonary embolism is presented. Idiopathic pulmonary …

The aortic homograft has become the replacement valve of choice in the treatment of
complicated endocarditis involving native and prosthetic aortic valves. Complications are rare, …

Left ventricular hypertrophy (LVH) is frequently present in patients referred for radionuclide
ventriculography (RVG) for evaluation of left ventricular function. During interpretation of …

Excerpt To the Editor: Deyo and colleagues (1) recently reviewed the use of diagnostic
imaging procedures for evaluation of the lumbar spine. Radionuclide bone imaging was …

Fig. 1. Transthoracic echocardiography performed in February 1989, with parasternal long-axis
(A) and apical four-chamber (B) views, revealed no evidence of an atria1 mass. LV, Left …

DISCUSSION There are two types ofright-sided aortic arch, type I and type II, each resulting
from abnormalities in the complex embryologic development of the aorta. At an early fetal …

Excerpt To the Editor:Angiotensin-Converting enzyme (ACE) inhibitors have been in clinical
use since 1980. They are effective antihypertensive agents with a good safety profile (1). …