Destructive Mold Osteomyelitis of the Wrist Caused by Cunninghamella echinulata: A Case Report

Background: Wrist osteomyelitis caused by Scedosporium apiospermum is exceedingly rare. Its indolent course and destructive potential may result in extensive bone loss and pose substantial diagnostic and therapeutic challenges. Methods: We report a case of chronic wrist osteomyelitis caused by Scedosporium apiospermum in a 68-year-old kidney-pancreas transplant recipient. Results: Following diagnosis, systemic antifungal therapy with voriconazole was initiated, and multiple surgical debridements were performed to achieve local disease control, resulting in a large defect of the carpus and distal forearm. Hand salvage was attempted using an osteocutaneous triple-barrel fibula flap. The postoperative course was complicated by congestion of the fibula skin island, which was managed with leech therapy. Subsequent infection with a multi-resistant Aeromonas spp. and Morganella morganii led to flap necrosis, ultimately requiring transradial forearm amputation. Conclusions: Destructive Scedosporium apiospermum osteomyelitis in immunocompromised patients is a major challenge for reconstructive surgeons. Interdisciplinary management is essential as mold eradication is only achievable through a combined surgical and antimicrobial approach. In advanced destructive osteomyelitis, the choice between limb salvage and amputation should be individualized, considering patient comorbidities, reconstructive risk, and patients' preferences. This case highlights the importance of balancing careful indication and patient counseling in complex clinical scenarios.

Abstract sourced from PubMed (NCBI) for the cited record. See the original publication for the authoritative version.

Case of fulminant Cunninghamella echinulata wrist osteomyelitis with extensive necrosis requiring multistage reconstruction; MLT and free-flap salvage described as part of contemporary wrist-salvage algorithm.

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