New Insights of Corynebacterium kroppenstedtii in Granulomatous Lobular Mastitis based on Nanopore Sequencing

Autor: Hong-Li Wu, Chuang Chen, Aisi Fu, Xin-Qian Li, Shengrong Sun, Jingping Yuan, Ran Liu, Tiangang Liu
Rok vydání: 2021
Předmět:
Zdroj: Journal of Investigative Surgery. 35:639-646
ISSN: 1521-0553
0894-1939
DOI: 10.1080/08941939.2021.1921082
Popis: BACKGROUND The etiology of granulomatous lobular mastitis (GLM) remains unknown. This study aimed to detect bacteria in GLM using Nanopore sequencing and identify the relationship between GLM and Corynebacterium kroppenstedtii. METHODS AND MATERIALS The bacterial detection on fresh samples (including breast pus and tissue) of 50 GLM patients using nanopore sequencing and culture methods. The bacterial detection rate of participants with different stages were compared and analyzed. Formalin-fixed and paraffin-embedded (FFPE) tissues from 39 patients were performed on Gram staining to identify Gram-positive bacilli (GPB) within lipid vacuoles. Moreover, the clinicopathological characteristics of GLM patients in different bacterial subgroups were also conducted. RESULTS In 50 GLM patients, the detection rate of bacteria was 78% using nanopore sequencing method, especially in the early stage of GLM (over 80%), which was significantly higher than that using culture methods (24%, p
Databáze: OpenAIRE