Acute spontaneous unilateral adrenal hemorrhage: etiology and imaging findings in six cases

Isa Félix Adôrno1, Tiago Kojun Tibana1, Guilherme Castilho Sorensen de Lima2

  • 1Hospital Universitário Maria Aparecida Pedrossian da Universidade Federal de Mato Grosso do Sul (HUMAP-UFMS), Campo Grande, MS, Brazil.

Radiologia Brasileira
|February 27, 2019
PubMed

Insights

Computed tomography (CT) revealed characteristic findings in six confirmed cases of acute adrenal hemorrhage. Early recognition of these CT features is crucial for timely diagnosis and preventing potentially fatal outcomes.

Area of Science:

  • Radiology
  • Medical Imaging
  • Emergency Medicine

Background:

  • Acute adrenal hemorrhage is a rare but potentially fatal condition.
  • Early diagnosis is critical for patient management and preventing severe complications.

Purpose of the Study:

  • To evaluate the computed tomography (CT) characteristics of confirmed acute adrenal hemorrhage.
  • To identify key imaging findings that aid in the diagnosis of adrenal hemorrhage.

Main Methods:

  • Retrospective analysis of CT findings in patients with clinically suspected and confirmed acute adrenal hemorrhage.
  • Exclusion of patients with aortic rupture and retroperitoneal hemorrhage.
  • Image interpretation by an experienced radiologist and two radiology residents.

Main Results:

  • Six cases of unilateral adrenal hemorrhage (three left, three right) were analyzed.
  • CT demonstrated rounded to oval masses altering adrenal gland anatomy.
  • Lesions measured up to 12.2 cm, with attenuation of 45-70 HU and no contrast enhancement or calcifications.

Conclusions:

  • CT findings in adrenal hemorrhage include specific mass-like appearances.
  • Radiologists' recognition of these CT presentations is vital for early diagnosis.
  • Prompt diagnosis can prevent progression to adrenal insufficiency and mortality.
Abstract

Related Concept Videos

Spontaneity02:21

Spontaneity

A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source. Processes have a natural tendency to occur in one direction under a given set of conditions. Water will naturally flow downhill (spontaneous process), but uphill flow (nonspontaneous process) requires outside intervention such as the use of a pump. Iron exposed to...
29.7K
Depressive Disorders: Etiology01:27

Depressive Disorders: Etiology

Depressive disorders result from a complex interplay of biological, psychological, and sociocultural factors, each contributing uniquely to the development and persistence of the condition. Understanding these factors provides critical insight into the multifaceted nature of depression.
Biological Factors in Depression
Biological predispositions significantly influence the risk of developing depressive disorders. Genetic studies highlight the role of variations in the serotonin transporter...
477
Anatomy of the Adrenal Glands01:17

Anatomy of the Adrenal Glands

The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct...
4.7K
Adrenal Gland Disorders01:27

Adrenal Gland Disorders

Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
3.3K
Hormones of the Adrenal Glands01:31

Hormones of the Adrenal Glands

Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
5.4K
Finding the Center of Gravity01:03

Finding the Center of Gravity

The center of gravity of a body is an imaginary point where the body's total weight is assumed to be concentrated, and the body is perfectly balanced. The center of the mass of a body is a point at which the whole of the mass of the body appears to be concentrated. If the acceleration due to gravity, g, has the same value at all points on a body, its center of gravity is identical to its center of mass. The center of gravity of homogeneous bodies such as a sphere, cube, or rectangular plate...
4.4K