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Published on: August 24, 2011
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.
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.
Objective:
To evaluate the computed tomography characteristics of patients admitted with clinical suspicion of acute adrenal hemorrhage at three centers over a 3-year period and in whom that diagnosis was ultimately confirmed.
Materials And Methods:
This was a retrospective analysis of computed tomography findings in patients with suspected acute adrenal hemorrhage. We included only those cases in which the diagnosis was confirmed. Patients with aortic rupture and retroperitoneal hemorrhage were excluded. The images were analyzed by an experienced radiologist and by two radiology residents.
Results:
Six cases of unilateral adrenal hemorrhage (three on the left and three on the right) were analyzed. On computed tomography, each appeared as a rounded, oval mass altering the usual anatomy of the adrenal gland. The maximum diameter was 12.2 cm, and attenuation ranged from 45 to 70 HU. There was no appreciable contrast enhancement. No calcifications were observed.
Conclusion:
Adrenal hemorrhage, albeit rare, is potentially fatal. Early diagnosis is essential. Therefore, recognition of the possible presentations of these lesions by radiologists may help prevent hemorrhage from progressing to adrenal insufficiency and death.
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