Fungal arthritis.

Fungal arthritis is a rare infection with a global distribution that affects neonates, the elderly, and immunocompromised individuals, resulting in severe outcomes. It presents a challenge for healthcare professionals due to its rarity, lack of characteristic features, and difficulty isolating and identifying responsible organisms. Studies on their pathophysiology and treatment have been limited, and evidence-based treatment options are lacking. The pathogens infect through direct inoculation, extension from adjacent infective foci, or distant dissemination via the bloodstream. Typically, it manifests as either monoarthritis or oligoarthritis, with the knee joint being the most common target. Systemic disease is often absent, while pulmonary and cutaneous diseases are the most frequent extra-articular manifestations. Diagnosis frequently necessitates the direct visualisation of the organism in specimens and cultures of synovial fluid and membranes. A combination of medical (antifungal) and surgical treatments is often required.