Ann Lab Med.  2024 Nov;44(6):604-607. 10.3343/alm.2024.0068.

The First Case of Tenosynovitis Caused by Thyridium endophyticum

• Cho SH
• Kwon YJ
• Byun SA
• Shin JH
• Choi HW
• Heo SH
• Lim JH
• Kim MS
• Lee Y
• Kang SJ

• KMID: 2560811
• DOI: http://doi.org/10.3343/alm.2024.0068

Figure

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  Fig. 1 Clinical and magnetic resonance imaging (MRI) findings. (A and B) General swelling of the hand and wrist and a small, ulcerated lesion under the thumb were observed. (C–E) MRI of the right hand revealing multiple fluid collections and circular enhancement of the flexor and extensor tendon sheaths (arrows) on gadolinium-enhanced sagittal (C) and axial (D) T1-weighted images, consistent with tenosynovitis. (E) Axial T2-weighted image with fat saturation revealing bone marrow edema of the carpal bones (asterisks) and edema of the dorsal superficial soft tissue and skin (arrows).

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  Fig. 2 Macroscopic and microscopic findings of the Thyridium endophyticum isolate. (A and B) Colony of T. endophyticum. Front (A) and back side (B) of a Sabouraud dextrose agar plate after four weeks of culture at 30°C. (C and D) Microscopic examination of a slide culture revealing hyaline hyphae with microconidia (lactophenol cotton blue stain, 400× [C] and 1,000× [D]).

Reference

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