Hioki Tatsuya, Kataoka Kensuke, Mutoh Yoshikazu
Department of Clinical Laboratory, Tosei General Hospital, 160 Nishioiwake-cho, Seto, Aichi, 489-8642, Japan.
Department of Respiratory Medicine and Allergy, Tosei General Hospital, 160 Nishioiwake-cho, Seto, Aichi, 489-8642, Japan.
Access Microbiol. 2023 Jun 22;5(6):acmi000442. doi: 10.1099/acmi.0.000442. eCollection 2023.
, a Gram-positive anaerobic coccus, is a common constituent of the human gut microbiota but rarely causes any disease in humans. Herein, we report a case of bacteraemia in an immunocompromised 73-year-old man with sigmoid colon perforation. is usually reported as Gram-positive diplococci or short chains on Gram staining; however, in our patient, a blood isolate showed Gram-positive cocci in long chains, and organisms from an anaerobic subculture showed morphological diversity. This case provides insight into the morphological diversity of , which might help with the recognition of these bacteria in the preliminary identification stage on Gram staining.
作为一种革兰氏阳性厌氧球菌，是人类肠道微生物群的常见组成部分，但很少在人类中引发任何疾病。在此，我们报告一例73岁免疫功能低下男性因乙状结肠穿孔导致的菌血症病例。在革兰氏染色中通常报告为革兰氏阳性双球菌或短链；然而，在我们的患者中，一份血液分离物显示为长链革兰氏阳性球菌，厌氧亚培养物中的微生物显示出形态多样性。该病例为的形态多样性提供了见解，这可能有助于在革兰氏染色的初步鉴定阶段识别这些细菌。
