False intranuclear inclusions in adrenal cytomegaly

Area of Science:

• Endocrinology
• Cell Biology
• Pathology

Background:

• Adrenal cytomegaly is a condition characterized by enlarged adrenal cells.
• Intranuclear inclusions can be observed in various cellular pathologies.
• Distinguishing true nuclear abnormalities from cytoplasmic invaginations is crucial for accurate diagnosis.

Purpose of the Study:

• To investigate the nature of false intranuclear inclusions observed in adrenal cytomegaly.
• To characterize the ultrastructural morphology of these inclusions using electron microscopy.

Main Methods:

• Review of seventeen cases of adrenal cytomegaly.
• Histopathological examination of adrenal tissue.
• Ultrastructural analysis using electron microscopy on selected cases.

Main Results:

• False intranuclear inclusions were identified in 11 out of 17 cases of adrenal cytomegaly.
• Electron microscopy in three cases demonstrated that these inclusions represent invaginated cytoplasm.
• The invaginated cytoplasm was enclosed by a double membrane and contained various organelles.

Conclusions:

• False intranuclear inclusions are a notable feature in a subset of adrenal cytomegaly cases.
• These inclusions are artifactual, stemming from cytoplasmic invagination, and not indicative of intrinsic nuclear pathology.
• Electron microscopy is essential for elucidating the ultrastructural basis of such findings.