Pseudogaucher cells obscuring multiple myeloma: a case report.

Area of Science:

• Hematology
• Oncology
• Cell Biology

Background:

• Gaucher-like or pseudo-Gaucher cells are observed in conditions such as acute lymphoblastic leukemia, Hodgkin's disease, thalassemia, and multiple myeloma.
• These cells exhibit an eccentric, lobulated nucleus and foamy cytoplasm, distinguishing them from true Gaucher cells, which possess tubular inclusions.
• Electron microscopy reveals distinct ultrastructural differences between pseudo-Gaucher and true Gaucher cells.

Purpose of the Study:

• To describe a case where pseudo-Gaucher cells presented diagnostic challenges.
• To emphasize the importance of differentiating pseudo-Gaucher cells from true Gaucher cells and neoplastic cells.

Main Methods:

• Histopathological examination of bone marrow aspirate.
• Morphological analysis of cells under light microscopy.
• Consideration of electron microscopy findings for differential diagnosis.

Main Results:

• The bone marrow of a 72-year-old female contained sheets of histiocytes with pseudo-Gaucher cell morphology.
• These pseudo-Gaucher cells mimicked Gaucher cells and obscured the presence of neoplastic plasma cells.
• The increased presence of pseudo-Gaucher cells is hypothesized to result from an overload of glucosylceramide due to high cell turnover.

Conclusions:

• Pseudo-Gaucher cells can mimic Gaucher cells and complicate the diagnosis of hematological malignancies.
• Accurate identification of pseudo-Gaucher cells is crucial for correct diagnosis and patient management.
• Further investigation into the mechanisms and implications of pseudo-Gaucher cell accumulation is warranted.