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[Rheumatic nodules in chronic polyarthritis].
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Subcutaneous nodules in rheumatic fever.
Acute rheumatic fever is described in a six year old Ethiopian male child who first presented with subcutaneous nodules and later developed carditis.
Ultrastructure of naturally occurring subcutaneous nodule in acute rheumatic fever.
Electron microscopic evaluation of subcutaneous nodules excised from two cases of acute rheumatic fever showed an electron dense and smudgy material which had a distinct filamentous appearance in places. The latter was recognized as collagen. This corresponded to the fibrinoid necrosis seen under the light microscope. In addition, several histiomonocytic cells and fibroblasts were seen. A large number of cells were degenerated. A fair degree of resemblance of the nodule both by light and electron microscopy to the rheumatoid nodule was noted.
Hand handicap and rheumatoid arthritis in a fish-eating society (the Faroe Islands).
In the county of Klaksvik, the Faroes, a simple hand test was used for screening all inhabitants between the ages of 40 and 74 years. With its high sensitivity and specificity it revealed a diagnostic panorama entirely different from that seen in previous investigations in other nordic countries. In Klaksvik the prevalence of hand handicap was about 40%, which is due to the high incidence of osteoarthrosis. The prevalence of rheumatoid arthritis was 1.1%. The high functional capacity and the lower occurrence of rheumatic nodules and erosions found in the patients with rheumatoid arthritis as compared with previous studies suggest that the disease takes a milder course in Klaksvik. This should support the hypothesis that RA patients benefit from a diet rich in fish.
[X-ray characterization of changes of the lungs in juvenile rheumatoid arthritis].
The results of chest x-ray were analyzed in 66 pediatric patients with juvenile rheumatoid arthritis (JRA). X-ray signs of pneumofibrosis were revealed in 37 (56%) patients. Besides, rare pulmonary changes (emphysema, rheumatic nodules, infiltrates) were detected in the JRA patients. The absence of clinical symptoms in the presence of x-ray changes necessitates the performance of chest x-ray in JRA for early detection of the pulmonary symptoms of this disease.
Rheumatoid nodules do not predict response to treatment with slow-acting anti-rheumatic drugs.
Rheumatoid nodules have been associated with a poor long-term prognosis. We investigated whether they predict a poor response to treatment with slow-acting anti-rheumatic drugs (SAARDs). Two hundred and twenty-eight patients with rheumatoid arthritis (RA) were treated for six months with a SAARD. Clinical and laboratory assessments of disease activity were made initially and after 6 months' treatment. Patients were divided into two groups according to the presence or absence of nodules at entry. Twenty-one % had nodules before treatment but their response was no different to patients without nodules (79%), both groups showing improvements in all variables. Males were more likely to develop nodules and had a relative risk of 1.7. High titres of rheumatoid factor correlated with nodules and no sero-negative patients had nodules. We conclude that nodules are not predictive of poor response to treatment with a SAARD, despite their presence being associated with a poor long-term prognosis. One possible implication is that SAARDs themselves, despite an early response, may not effect long-term outcome.
Spinal cord compression by a rheumatoid nodule.
A case, believed to be unique, is reported of spinal cord compression due to an extradural rheumatoid nodule.
On two papers dealing with nodules.
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Rheumatoid nodules of the lung in a patient with palindromic rheumatism.
We report a case of rheumatoid nodules of the lung seen in a patient with palindromic rheumatism. A 54-year-old man with palindromic rheumatism was admitted for evaluation of three nodules in the right upper lobe on chest roentgenogram. Wedge resection was performed for the purpose of confirmative diagnosis and treatment. Histology of these lung lesions revealed palisaded histiocytic cells surrounding a layer of central necrosis, which were considered to be characteristic findings of rheumatoid nodule. Such a case is extremely rare. To our knowledge, only one other case has been reported before in the literature.
The subcutaneous nodule: Its significance in the diagnosis of rheumatic disease.
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The prevalence of palpable finger joint nodules in diffuse idiopathic skeletal hyperostosis (DISH). A controlled study.
The presence of clinically palpable finger joint nodules (Heberden's and Bouchard's nodes) was documented in 123 consecutive cases with diffuse idiopathic skeletal hyperostosis (DISH) of the thoracic spine and 191 matched DISH negative controls. The prevalence of palpable finger joint nodules was almost twice as frequent in cases with spinal DISH compared to controls (46% versus 31%, chi 2 = 7.67, P less than 0.01; multivariate adjusted odds ratio OR = 1.84; 95% CI: 1.14-2.98). This increase was most marked at the proximal interphalangeal joint, in males and in patients up to the age of 65 years. In addition and independent of other variables such as hyperostotic features, age and sex, the prevalence of palpable finger joint nodules was about twice as high in probands with a history of physically heavy work compared to those without (43% versus 26%, chi = 9.18, P less than 0.005; multivariate adjusted odds ratio OR = 2.10; 95% CI: 1.26-3.52). From these results we conclude that DISH should be considered as an independent risk factor in the development of finger joint nodules.
Laryngeal involvement in systemic lupus erythematosus.
Laryngeal involvement in systemic lupus erythematosus (SLE) can range from mild ulcerations, vocal cord paralysis, and edema to necrotizing vasculitis with airway obstruction. In this report, four cases showing the range of severity of this disease manifestation are presented, accompanied by a comprehensive review of the literature. The clinical course of 97 patients with laryngeal involvement with SLE are reviewed, of whom 28% had laryngeal edema and 11% had vocal cord paralysis. In the majority of cases, symptoms such as hoarseness, dyspnea, and vocal cord paralysis resolved with corticosteroid therapy. Other, less common causes of this entity included subglottic stenosis, rheumatoid nodules, inflammatory mass lesions, necrotizing vasculitis, and epiglottitis. The clinical presentation of laryngeal involvement in patients with SLE follows a highly variable course, ranging from an asymptomatic state to severe, life-threatening upper airway compromise. With its unpredictable course and multiple causations, this complication remains a diagnostic and therapeutic challenge to physicians involved in the care of patients with SLE.
Extraarticular manifestations of rheumatoid arthritis and HLA antigens in northern Italy.
We performed retrospective analysis of 141 Northern Italian patients with rheumatoid arthritis (RA). This series represents all the patients seen as in and/or outpatients at the rheumatologic unit of Reggio Emilia Hospital during a 2 year period (1987-88). We observed a low frequency of nodules (16%) and vasculitis (2.1%). Thus, RA seems to be milder in our population compared to Caucasian patients with RA originating from North America or England. We observed a weak association with DR4 (RR = 2.4) in the total group of patients with RA. A low frequency of DR4 was observed in patients and controls (29 vs 14.5%, p = 0.001). When compared with controls the frequency of DR4 was significantly higher in seropositive (p = 0.001), but not in seronegative patients. We found that DR4 was significantly associated with nodules (RR = 6.4), with extraarticular features (EAF) (RR = 4) and with erosions (RR = 3) compared with controls. The subgroups with nodules and EAF had a DR4 frequency (respectively, of 52 and 40%) which was significantly higher than that observed in remaining patients (respectively, 25 and 24%). No significant difference was observed in the DR4 frequency between the patients with erosions and those without (34 vs 18%). Thus, DR4 in our population seems to be predominantly associated with a subgroup of patients characterized by seropositivity and EAF.
The prevalence and distribution of macrophages bearing Fc gamma R I, Fc gamma R II, and Fc gamma R III in synovium.
Fc-receptors for IgG (Fc gamma R) are important triggers of effector function in macrophages. We have investigated the distribution of cells bearing Fc gamma R I, Fc gamma R II, and Fc gamma R III in 14 synovia and 3 nodules from rheumatoid arthritis (RA) patients, using monoclonal antibodies on serial cryostat sections. 8 osteoarthritis (OA), 2 ankylosing spondylitis (AS) patients and one sarcoid patient were also studied. Significant numbers of macrophages bearing Fc gamma R were present in inflamed synovial tissue with no significant difference in relative frequency between RA and OA. There was no correlation with the degree of lymphocytic infiltration. Distinctive staining patterns for the three Fc-receptors suggest differential regulation of these molecules on macrophages in synovium.
[Rhemuatismus nodosus. Relationship between joint findings and rheumaserology in chronic polyarthritis].
The clinical course and radiologic and serologic findings are reported in 37 subjects who, during the years 1954 to 1974, had rheumatoid nodules removed and examined histologically. The observations were classified into four groups according to a system similar to that of Steinbrocker. The histological findings were the same in all four groups. In 4 subjects the diagnosis of rheumatoid arthritis was established by the biopsy. In 5 additional patients the histologic examination confirmed the clinical diagnosis. Radiologically the joints of 5 adults were unremarkable while those of 14 subjects had developed slight or moderate changes, and in 18 patients advanced destruction or deformities or ankylosis were present. In instances of marked joint destruction the course of the disease may, spontaneously or after appropriate treatment, become bland. 90% of our patients were seropositive and 10% seronegative. 9 subjects had temporarily low RF serum titers. Serologic data are of value for the differential diagnosis of joint diseases. They are not, however decisive.
Changes of the lung in rheumatoid arthritis--rheumatoid pneumonia. A clinicopathological study.
The frequency and patho-histological characteristics of pulmonary changes were studied on the autopsy material of 100 patients with rheumatoid arthritis (RA). The formal pathogenesis and different stages of vasculitis, rheumatoid nodule, interstitial pneumonia, rheumatoid pleuritis, obliterative bronchiolitis, amyloidosis and the so-called rheumatoid pneumonia in the lungs is discussed. The rheumatoid pneumonia is a disseminating inflammatory lobular-sublobular process, not described previously. The frequency of rheumatoid pneumonia was 4%. The rheumatoid pneumonia is characterized by the necrotic vasculitis, fibrinoid necrosis or thrombovasculitis of the pulmonary and bronchial arterioles, and of small arteries. Because of the diminished blood supply distal to the vascular changes inflammatory foci may develop, more or less respecting the anatomic borders of pulmonary tissue. The lobular-sublobular inflammation is basically of non haemorrhagic character. Because of the recurrent nature of vasculitis, foci of inflammation in different stages can be observed in the lungs simultaneously side by side. Clinically the rheumatoid pneumonia was accompanied by severe RA, according to the frequency and severity of acute exacerbations. In all 4 cases of rheumatoid pneumonia the pulmonary process had been proven clinically and radiologically. Rheumatoid pneumonia occurred subsequent to recurrent arthritis following steroid withdrawal, and it was resistant to antibiotics.