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Important medical research and remarkable case reports worth knowing.

Selected from high-relevance medical literature published in the last 14 days.

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FeaturedCase ReportInfectious Diseases

Systemic Spiroplasma turonicum Infection Manifested as Knee Arthritis, France, 2025.

Emerg Infect DisOct 24, 2026

An immunocompromised patient in southeast France presented with fever, knee arthritis, and skin erythema. Blood and joint samples tested positive for Spiroplasma turonicum, an intracellular gram-negative bacterium…

Clinical pearl

In an immunocompromised patient with fever and arthritis, consider S. turonicum infection when blood and joint samples are positive for the organism.

Read case

Also worth knowing

Case ReportRheumatology

SARS-CoV2-induced Schnitzler syndrome, inflammatory flare and successful treatment by anakinra during pregnancy: a case report.

A pregnant woman in her early 40s with established Schnitzler syndrome developed urticaria, musculoskeletal symptoms and elevated inflammatory markers during SARS-CoV-2 infection, consistent with an inflammatory flare.

Swiss Med WklyOct 19, 2026Read case

Case ReportNephrology

Unexpected finding of AA amyloidosis with novel genetic variants in the MEFV gene in patients undergoing kidney biopsy for proteinuria. A case series.

The report describes patients undergoing kidney biopsy for proteinuria in whom AA amyloidosis was identified, alongside MEFV gene variants.

J NephrolOct 22, 2026Read case

Case ReportRheumatologyOpen access

Effectiveness of tocilizumab monotherapy for IgG4-related disease-like features caused by idiopathic multicentric Castleman's disease: a case-based review.

A 68-year-old woman presented with dyspnea associated with a recurrent laryngeal tumor, pulmonary consolidation, mediastinal and axillary lymphadenopathy, sclerosing mesenteritis, and retroperitoneal fibrosis.

Rheumatol IntOct 22, 2026Read case

Case ReportDermatology

Oral mucous membrane pemphigoid as a window to systemic autoimmunity: two cases associated with rheumatoid arthritis and Sjögren's disease.

Two women presented with oral mucous membrane pemphigoid (MMP) in the setting of systemic autoimmunity. A 68-year-old woman with longstanding rheumatoid arthritis had recurrent oral ulcerations confirmed as MMP on…

Einstein (Sao Paulo)Oct 19, 2026Read case

Case ReportRheumatologyOpen access

Tocilizumab for active rheumatoid arthritis in a patient with concomitant primary biliary cholangitis: a case based review.

A 59-year-old woman presented with highly active, seropositive rheumatoid arthritis and marked cholestatic biochemical activity. Evaluation identified active primary biliary cholangitis without advanced liver fibrosis.

Rheumatol IntOct 17, 2026Read case

Case ReportDermatologyOpen access

Exploring the landscape of flagellate erythema as a rare cutaneous symptom of idiopathic inflammatory myopathy: a case series-based review.

Two patients with idiopathic inflammatory myopathy developed zebra-like flagellate erythema: one had immune-mediated necrotising myopathy and the other anti-Mi-2-positive cancer-associated myositis.

Rheumatol IntOct 14, 2026Read case

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