Related Experiment Video
Updated: Jun 2, 2026

Studying Pre-formed Fibril Induced α-Synuclein Accumulation in Primary Embryonic Mouse Midbrain Dopamine Neurons
Published on: August 16, 2020
Intranuclear peudoinclusions: morphology, pathogenesis, and significance
Sandeep Kumar Arora1, Pranab Dey
1Department of Cytology, Postgraduate Institute of Medical Education, and Research, Chandigarh, India.
Intranuclear pseudoinclusions are cytoplasmic invaginations into the nucleus, easily seen in cytology. This review covers their morphology, causes, diagnosis, and clinical importance.
Area of Science:
- Cytopathology
- Cell Biology
- Histopathology
Background:
- Intranuclear pseudoinclusions are defined as invaginations of cytoplasm into the nucleus.
- These features are often more readily identified in cytological preparations compared to frozen sections or traditional histopathology.
- They represent a significant diagnostic clue in cytological analysis.
Purpose of the Study:
- To provide a comprehensive review of intranuclear cytoplasmic pseudoinclusions.
- To elucidate the morphology, pathogenesis, differential diagnosis, and clinical significance of these nuclear inclusions.
Main Methods:
- Literature review of existing studies on intranuclear pseudoinclusions.
- Analysis of cytological, frozen section, and histopathological data.
- Synthesis of information regarding the formation and identification of pseudoinclusions.
Main Results:
- Intranuclear pseudoinclusions are characterized by cytoplasmic material within the nuclear membrane.
- Cytological preparations offer superior visualization of these structures.
- Understanding their varied presentations is crucial for accurate diagnosis.
Conclusions:
- Intranuclear pseudoinclusions are a key cytological finding with implications for diagnosis.
- Distinguishing pseudoinclusions from true nuclear inclusions is essential.
- Further research into their clinical significance may enhance patient management.
Related Concept Videos
Cell Inclusions
Parkinson Disease ll: Pathophysiology
Intralumenal Vesicles and Multivesicular Bodies
Encephalitis ll: Pathophysiology
Nuclear Localization Signals and Import
Additional Subnuclear Structures
The nucleus contains many membrane-less subnuclear organelles or nuclear bodies, such as nucleoli, Cajal bodies, speckles, paraspeckles, etc. These nuclear...