PMID: 8580753Nov 1, 1995Paper

Adrenal nonhyperfunctioning adenoma and nonadenoma: CT attenuation value as discriminative index

Abdominal Imaging
H MiyakeH Mori

Abstract

When an asymptomatic adrenal mass is incidentally discovered on abdominal CT scans, the distinction between a nonhyperfunctioning adenoma and a nonadenoma would be important. We evaluated the CT findings of 36 adrenal masses (14 nonhyperfunctioning adenomas, 22 nonadenomas) in 34 patients with no evidence of hormonal hypersecretion. CT attenuation values of adrenal masses on CT scans were calculated by setting a circular region of interest as large as possible in the center of each adrenal mass. Below 20 HU in CT attenuation values, all adrenal masses, except one case of ganglioneuroma with myxomatous change, were nonhyperfunctioning adenomas. With an arbitrary threshold of 20 HU, the sensitivity of CT attenuation values in distinguishing nonhyperfunctioning adenomas from nonadenomas was 64%, the specificity was 95%, and the accuracy was 83%. When decreasing the threshold to 15 HU, the sensitivity was 64%, the specificity was 100%, and the accuracy was 86%. The CT attenuation value on noncontrast CT was more useful for making this distinction than the size and interior homogeneity. Our data suggest that an asymptomatic adrenal mass with homogeneous low attenuation (< or = 15 HU) and less than or equal to 4 cm indicates a nonhyp...Continue Reading

References

Jan 1, 1991·Journal of Computer Assisted Tomography·G P KrestinB Allolio
Sep 1, 1988·Acta Radiologica·M PäivänsaloM Kallionen
Jul 1, 1988·AJR. American Journal of Roentgenology·L L BerlandJ Y Lee
Jan 1, 1985·AJR. American Journal of Roentgenology·S HussainH L Abrams
Oct 1, 1984·Radiology·T W OliverW A Davis
May 1, 1994·Journal of Computer Assisted Tomography·A R van ErkelT H Falke

❮ Previous
Next ❯

Citations

Sep 27, 2003·European Journal of Surgical Oncology : the Journal of the European Society of Surgical Oncology and the British Association of Surgical Oncology·F LumachiG Favia
Feb 21, 2004·AJR. American Journal of Roentgenology·Alfred StadlerBruno Niederle
Nov 22, 2008·Annales d'endocrinologie·A TabarinUNKNOWN French Society of Endocrinology Consensus
Oct 3, 2006·Veterinary Radiology & Ultrasound : the Official Journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·Giovanna BertoliniMarco Caldin
Jan 21, 2017·Journal of Computer Assisted Tomography·Saïd C AzouryMartha A Zeiger
Oct 25, 2000·Journal of Computer Assisted Tomography·H MiyakeH Mori
Nov 20, 1997·The Journal of Urology·J A DaitchA C Novick
Aug 4, 2007·Korean Journal of Radiology : Official Journal of the Korean Radiological Society·Sung Hee ParkKi Whang Kim

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Experimental and Clinical Endocrinology & Diabetes : Official Journal, German Society of Endocrinology [and] German Diabetes Association
Rossella LibèBruno Ambrosi
AJR. American Journal of Roentgenology
Elaine M CaoiliN Reed Dunnick
© 2021 Meta ULC. All rights reserved