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[Crow-Fukase syndrome]

¹Department of Neurology, Faculty of Medicine, University of Tokyo.

Nihon Rinsho. Japanese Journal of Clinical Medicine

|March 1, 1995

Summary

Crow-Fukase syndrome, also known as POEMS syndrome, is a complex disorder affecting multiple organs. Research suggests bone lesions and substances from plasmacytoma cells may play a role in its unknown pathogenesis.

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Area of Science:

Hematology
Neurology
Endocrinology
Dermatology

Background:

POEMS syndrome (polyneuropathy, organomegaly, endocrinopathy, monoclonal gammopathy, skin changes) is a rare multisystem disorder.
The exact cause of POEMS syndrome remains unclear.
While an M component is common, it's not consistently linked to organ damage, suggesting other factors are involved.

Purpose of the Study:

To explore the underlying pathogenesis of POEMS syndrome.
To investigate the role of bone lesions and associated plasma cells in the syndrome's development.

Main Methods:

Review of clinical data and pathological findings in patients with POEMS syndrome.
Analysis of the characteristics of abnormal plasma cells in affected individuals.
Correlation of bone lesion presence and treatment with syndrome regression.

Main Results:

Over half of POEMS syndrome patients exhibit solitary or multiple bone lesions, often plasmacytomas.
Abnormal plasma cells in POEMS syndrome appear distinct from those in multiple myeloma.
Syndrome regression observed after plasmacytoma resection or irradiation suggests a link.

Conclusions:

The pathogenesis of POEMS syndrome may involve substances produced by plasmacytoma cells.
Further research is needed to confirm the role of plasmacytomas and their products in POEMS syndrome.
The distinct nature of plasma cells in POEMS syndrome warrants further investigation.

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