The aim of the study was to compare clinical manifestations, disease activity, functional capacity, spinal mobility, and radiological findings between men and women from a multicenter, multiethnic Ibero-American cohort of patients with Spondyloarthritis (SpA).This observational cross-section study included 1264 consecutive SpA patients who fulfilled the modified New York criteria for ankylosing spondylitis (AS). Demographic, clinical, and radiologic data were evaluated. Categorical data were compared by X2 or Fisher's exact tests and continuous variables by ANOVA with post-hoc tests.Primary AS was diagnosed in 1072 patients, psoriatic spondylitis in 147, and spondylitis associated to inflammatory bowel disease (IBD) in 45 patients. Overall, male patients were significantly younger, had longer diagnostic delay, lower disease activity, worse spinal mobility, better quality of life, and more severe radiologic damage. Dactylitis and enthesitis, as well as swollen joint count, were significantly more common among women. In primary AS, there was a marked male predominance (76.2%). Among patients with psoriatic spondylitis, male predominance was lower (57.8%), but was also associated with worse spinal mobility and more severe radiologic damage. In the total population, male patients with primary AS referred higher permanent work disability (13.2% vs 6.9%; P < 0.05), although no difference was observed in psoriatic or IBD spondylitis according to the gender.Among Ibero-American SpA patients, there are some differences in clinical and radiological manifestations, men showing more structural damage, whereas women more active disease. These data suggest that the phenotype of SpA differs between genders. This can influence the subsequent diagnostic approach and therapeutic decisions.

To determine the frequency of anticyclic citrullinated peptide (CCP) antibodies in a cohort of psoriatic arthritis (PsA) patients and to compare clinical, serological and radiological characteristics between PsA patients with and without anti-CCP antibodies. Patients with PsA, according to classification criteria for PsA, were consecutively recruited from an outpatient rheumatology clinic. Demographic and clinical data were collected in all cases. Serum samples from all patients were analyzed for rheumatoid factor and anti-CCP antibodies. Radiographs of hands and feet were obtained and the presence of erosions was recorded. The study included 81 patients; 43 (53 %) were men, with a median age of 45.7 years (interquartile range (IQR) 39-72) and median disease duration of 9.4 years (IQR 2-14). Anti-CCP antibodies were found in 11 patients (13.5 %), median titer 174.9 U/ml. Polyarticular involvement (72.7 vs. 17.1 %), frequency of erosive disease (72.7 vs. 37.1 %) and use of tumor necrosis factor-α inhibitors (54.5 vs. 28.5 %) were significantly higher in PsA patients with anti-CCP positivity. Anti-CCP negative PsA patients had predominantly more oligoarticular (62.8 vs. 27.2 %) and nail (81.4 vs. 36.3 %) involvement. Presence of enthesitis, dactylitis and Psoriasis Area Severity Index scores were similar in both groups. Anti-CCP antibodies were found in a subset of PsA patients, and their presence was associated with more severe disease phenotype. Further studies in a larger population are needed to define the role of anti-CCP as a biomarker of erosive disease in PsA.

CryoVas is a small vessel vasculitis associated with the presence of circulating cryoglobulins. In the absence of HCV infection, several disorders have been identified in association of CryoVas. Although evidence is limited, a few studies have recently described the clinical presentation, prognosis, and therapeutic management of non-infectious CryoVas. Patients with type I CryoVas, especially associated with hematologic malignancies, have shown a worse clinical presentation. Recent studies have also identified prognostic factors in mixed CryoVas. Therapeutic management in non-infectious CryoVas remains to be defined. Overall, treatment options should be individualized based on severity of involvement. In this setting, new data have emerged regarding the role of biologic therapy in non-infectious CryoVas. Off-label use of rituximab should be highlighted, based on the assessment of benefits and risks, especially infections.

The systemic vasculitis is a heterogeneous group of diseases characterized by the inflammation of blood vessels. The development of advanced diagnostic tests and genetic studies have resulted in greater improvement in our understanding of vasculitis pathogenesis and thus in the development of newer therapies. However, there is still an unmet need in the management of systemic vasculitis, focused on developing of new biomarkers that would enable distinction between active disease from damage or infection and predict treatment response and prognosis.

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Psoriatic arthritis is a common systemic inflammatory disorder, which in addition to skin and nail involvement may be associated with peripheral and axial joint involvement, enthesitis, dactylitis, and important comorbidities - especially cardiovascular morbidity. Better insights into the involved pathogenic mechanisms have resulted in an improved therapeutic armamentarium, which targets key pathways in its pathogenesis. This has resulted in significant clinical responses to newer therapeutic agents, especially those directed at inhibition of tumor necrosis factor α. Biological therapy leads to significant levels of remission, improved quality of life, and retards or improves structural radiological damage.

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Musculoskeletal symptoms are the most frequent extra-intestinal manifestations of inflammatory bowel disease (IBD), ranging between 10 and 40 % of cases. Pathogenesis is still unclear, although several factors have been associated (genetic, environmental, and immunologic pathways). Rheumatic manifestations in IBD patients are heterogeneous, including axial and peripheral involvement, dactylitis, enthesitis, uveitis, as well as skin involvement. Currently, magnetic resonance imaging and ultrasonography are important tools for detecting early pathological changes in IBD patients with suspected rheumatic disease. New advances into the genetics and pathophysiology have provided more effective and targeted therapy for IBD patients with rheumatic manifestations. Given the high prevalence, awareness of the musculoskeletal symptoms is essential to avoid a misdiagnosis. Finally, an interdisciplinary approach of IBD patients, including rheumatologist and gastroenterologist, will improve the quality of life these patients.