A Schizophyllum commune fungus ball in a lung cancer cavity: a case report

• DOI: 10.1186/s12879-021-06739-8
• Publication Date: 2021-10-10T20:55:43Z
• Authors: Naoya Itoh; Nana Akazawa; Hiromi Murakami; Yuichi Ishibana; Yusuke Takahashi; Waki Hosoda; Takashi Yaguchi; Katsuhiko Kamei
• Keywords: Schizophyllum commune; Pleural cavity; Medical microbiology

Abstract Background Schizophyllum commune is a basidiomycete that lives in the environment and can cause infections, mainly those of respiratory system. Although S. increasingly reported as allergic bronchopulmonary mycosis sinusitis, cases fungal ball formation are extremely uncommon. Identification difficult using routine mycological diagnostic methods, clinically suspicious cases, internal transcribed spacer sequencing should be used for diagnosis. Here, we report first case lung cancer with , confirmed by analyzing spacer. Case presentation A 76-year-old man diabetes hypertension was admitted to hospital chief complaint hemosputum, which he had about 19 months. computed tomography image patient’s chest showed cavity nodule left upper lobe his lung. lobectomy performed, histopathological examination revealed squamous cell carcinoma ball. The isolate from surgical specimen identified patient no recurrence infection during 5 months follow-up. Conclusions Only three balls caused have been previously reported, this formation. In lung, considered possible causative microorganism.