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This is an observational study of the mid-long-term results of a single course of phytothermotherapy with grass baths (group A, 54 patients), of a course of usual medical care (group B, 58 patients) and of a course of physiokinesistherapy (FKT, group C, 30 patients) in knee osteoarthritis. For each group of consecutively treated patients we evaluated the Lequesne algo-functional Index, the drug consumption, the frequency of the patient-physician contacts and laboratory or radiological examinations after 10-15 days of treatment and at 3, 6, 9 and 12 months with blind telephonic follow-up. The mean Lequesne-score at basal time was 7.5+/-3.3, 11.9+/-5.3 and 11.0+/-2.7 in group A, B and C respectively. In each group this score diminished at the end of the treatment (p<0.001). At 3, 6, 9 and 12 months the score remained lower than at basal time in group A (p<0.001) and group B (p<0.01), but not in group C. Drug consumption, patient-physician contacts and lab examinations were 5 times lower in group A than in group B and group C at basal time and throughout the follow-up. The study underlines the mid-long term efficacy of grass baths on both pain and functionality in knee osteoarthritis; this effect, compared to basal values, was even more evident at 3 and 6 months than that of usual medical care. FKT shows improvement only at the end of the treatment, but not long-lastingly.

In this review the authors focus on Erdheim-Chester disease, a rare systemic disorder of unknown etiology, likely neoplastic, characterised by xantogranulomatous infiltrates of foamy, lipid-laden histiocytes in all involved sites, principally bone, retroperitoneum, lung, pleura, pericardium, retroorbital tissue and brain; moreover periadventitial tissue of the aorta and major arteries may be present. The clinical picture and the course are very various. Erdheim-Chester disease belongs to histiocytosis and differs from Langerhans' cell histiocytosis for clinical, histologic and immunohistochemical features. After the observation of 2 cases we have reviewed the literature; we think useful to present the principal features of the disease, which is likely more frequent than expected; Erdheim-Chester disease is rarely diagnosed because of the poor knowledge of the disease, which is not reported on the common textbooks of medicine.

For many years a secondary role in the pathogenesis of rheumatoid arthritis has been ascribed to neutrophil, relatively to the inflammatory response's evaluation. This cell was considered lacking in a peculiar activity and ever depending on lymphocytes and monocytes. During the recent years the neutrophil has been recognized as a cytokines producing cell, really able to modulate its role in joints inflammation. In the light of the latest information it's possible reconsider the role of this cell, looking at it like a moderate co-protagonist in the expression of rheumatoid damage, regarding both to joint inflammation and the maintenance of the damage itself. On the grounds of these knowledge, polymorphonuclear granulocyte could be also chosen as target of the newest therapies in the treatment of this disease. The aim of this short review is to focus the activity of neutrophils in rheumatoid arthritis, trying to follow them through their migration from blood to sinovial tissue and to understand the dynamic relation with the cytokine network, that from these cells pathway depends.