Clinical analysis of gender and pre-existing diabetes mellitus in patients with polymyalgia rheumatica: A retrospective study in a Japanese population.

Objective: This study clarifies the involvement of gender and pre-existing diabetes mellitus (DM) in the clinical characteristics of polymyalgia rheumatica (PMR).

Methods: The clinical records of patients diagnosed with PMR in our department between January 2011 and June 2021, especially in terms of gender and DM were retrospectively analysed.

Results: We identified 89 patients with the median age of 75.

A case of neutrophilic dermatosis with gene variant and abnormal activation of peripheral blood monocytes: a case report.

A healthy 32-year-old man had a fever and elevated levels of white blood cells (WBC) and C-reactive protein (CRP). In addition, he presented with a skin rash on his forehead, around the neck, and from the anterior chest to the abdomen. His laboratory findings showed elevated levels of hepatic enzyme, CRP, and ferritin; therefore, he was suspected to have adult-onset Still's disease (AOSD) and referred to our department.

Rheumatoid arthritis-like active synovitis with T-cell activation in a case of idiopathic multicentric Castleman disease: A case report.

Rationale: Idiopathic multicentric Castleman disease (iMCD) is a systemic disease with multiple regions of lymphadenopathy and systemic symptoms and associated with rheumatoid arthritis (RA) and collagen diseases. However, few reported have described the coexistence of iMCD and RA and the mechanisms by which iMCD induces arthritis remain elusive. We experienced a rare case of iMCD, wherein the patient exhibited symptoms of polyarthritis with high-grade fever.