Curschmann's spirals in pleural and peritoneal effusions.

Area of Science:

• Cytopathology
• Histopathology
• Medical Science

Background:

• Curschmann's spirals are typically found in the respiratory tract.
• Their presence in serosal fluids is uncommon and poorly understood.

Purpose of the Study:

• To investigate the origin and formation of Curschmann's spirals in pleural and peritoneal fluids.
• To correlate spiral presence with specific pathological conditions in serosal cavities.

Main Methods:

• Analysis of five cases with spontaneous pleural and peritoneal effusions.
• Examination of cytological smears and cell block preparations.
• Histopathological correlation with fluid cytology.

Main Results:

• Curschmann's spirals were identified in five cases of pleural and peritoneal fluids.
• In three cases, spirals co-occurred with mucus-secreting adenocarcinoma cells, suggesting mucus as a source.
• In two cases with serosal inflammation, spirals were linked to submesothelial connective tissue mucosubstances.

Conclusions:

• Curschmann's spirals in serosal fluids likely originate from mucus-secreting cells or inflammatory processes.
• Spiral formation is a complex phenomenon influenced by the local microenvironment.
• Further research is needed to elucidate the exact mechanisms of spiral formation in these fluids.