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Adrenal myelolipoma: a comprehensive review
Ábel Decmann1, Pál Perge1, Miklós Tóth1
12nd Department of Medicine, Semmelweis University, Szentkirályi str. 46., Budapest, 1088, Hungary.
Endocrine
|November 23, 2017
Summary
Adrenal myelolipomas are benign adrenal tumors, the second most common incidentaloma. Diagnosis is aided by imaging, and surgery is often unnecessary if asymptomatic.
Area of Science:
- Endocrinology
- Pathology
- Radiology
Background:
- Adrenal myelolipoma is a benign adrenal neoplasm, second only to adrenocortical adenomas as a primary adrenal incidentaloma.
- Composed of adipose tissue and extramedullary hematopoiesis, its pathogenesis remains unclear.
- Despite benignancy, it poses diagnostic challenges for adrenal tumors.
Purpose of the Study:
- To provide a comprehensive analysis of adrenal myelolipoma pathology, epidemiology, and clinical features.
- To review existing literature and incorporate case series for robust findings.
- To clarify diagnostic and management strategies for adrenal myelolipoma.
Main Methods:
- Systematic review of 420 reported cases (1957-2017) from PubMed and Scopus.
- Inclusion of 20 additional case series for comprehensive analysis.
- Analysis of pathological, epidemiological, and clinical data.
Main Results:
- Average age at diagnosis: 51 years; no gender predilection.
- Average tumor size: 10.2 cm.
- Associated conditions: Congenital adrenal hyperplasia (10%), hypersecretory disorders (7.5%).
Conclusions:
- Computed tomography and magnetic resonance imaging are reliable for differential diagnosis.
- Surgical intervention is typically not required for unambiguous, asymptomatic adrenal myelolipomas.
- Understanding these features aids in appropriate clinical management and reduces diagnostic uncertainty.
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