TY - JOUR AB - The present study aimed to compare the thickness of brain abscesses in the deep and the superficial brain and to investigate the factors that influence the capsule of brain abscesses. The thickness of the brain abscess wall was evaluated on imaging. Bacteriological examination was performed on the abscess pus and wall, and immunohistochemical staining was used to count the number of macrophages. Kaplan‑Meier curves were used to analyze overall survival. The results indicated that the wall of deep‑brain abscesses was thicker than that of superficial abscesses. There was a difference in the extent of macrophage infiltration of deep‑ and superficial‑brain abscess walls, and differences in the extent of macrophage infiltration in the wall of brain abscesses caused by various microorganisms were statistically significant. Of note, among the brain abscesses caused by Staphylococcus, the extent of macrophage/microglia infiltration and the thickness of the wall of the deep‑brain abscesses were greater than those of superficial‑brain abscesses and there was a positive correlation between the number of macrophages and the thickness of the abscess wall. The overall survival (OS) of patients with deep‑brain abscess was not significantly shorter than that of patients with superficial‑brain abscess. Furthermore, OS was not significantly different among groups of patients receiving different types of treatment. In conclusion, the wall of deep‑brain abscesses is thicker than that of superficial abscesses and the infiltration of macrophages is abundant. The thick wall of abscesses in the deep brain may be associated with macrophage infiltration. AD - Department of Neurosurgery, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, P.R. China Department of Pathology, Sanbo Brain Hospital, Capital Medical University, Beijing 100093, P.R. China AU - Yang,Zuocheng AU - Yang,Yakun AU - Qi,Xueling AU - Liu,Ning AU - Wang,Pengfei AU - Zhang,Linpeng AU - Han,Mingyang AU - Han,Song DA - 2021/10/01 DO - 10.3892/etm.2021.10514 IS - 4 JO - Exp Ther Med KW - infection abscess wall deep brain macrophage PY - 2021 SN - 1792-0981 1792-1015 SP - 1080 ST - Thickening of the walls of deep brain abscesses is associated with macrophage infiltration T2 - Experimental and Therapeutic Medicine TI - Thickening of the walls of deep brain abscesses is associated with macrophage infiltration UR - https://doi.org/10.3892/etm.2021.10514 VL - 22 ER -