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Vascular adrenal pseudocyst: cytologic and immunohistochemical study
J B Laforga1, A Bordallo, F I Ara
1Department of Pathology, Hospital Marina Alta, Denia, Spain. jblaforga@redestb.es
Diagnostic Cytopathology
|January 29, 2000
Summary
Adrenal hemorrhagic pseudocysts (AHP) are rare adrenal tumors. This case highlights diagnostic challenges with fine-needle aspiration biopsy, emphasizing AHP in differential diagnoses for adrenal masses.
Area of Science:
- Endocrinology
- Surgical Pathology
- Vascular Biology
Background:
- Adrenal vascular cysts are uncommon lesions that present diagnostic challenges.
- Their precise origin remains unclear in medical literature.
Observation:
- A 73-year-old male presented with abdominal pain due to a large left adrenal tumor.
- Computed tomography revealed a 9 cm adrenal mass; fine-needle aspiration biopsy was inconclusive due to hemorrhage.
Findings:
- Histopathology showed a well-circumscribed tumor with cystic spaces containing erythrocytes and necrotic debris.
- Immunohistochemistry revealed strong positivity for factor VIII-related antigen, CD31, and CD34.
- Vascular proliferation in the surrounding adrenal tissue supported a vascular origin.
Implications:
- This case underscores the diagnostic limitations of fine-needle aspiration biopsy for adrenal masses.
- Adrenal hemorrhagic pseudocyst should be considered in the differential diagnosis of adrenal tumors, especially with hemorrhagic aspirates.