👉 Peniculistoma is a term used in medicine, referring to a rare type of bacterial infection characterized by a buildup of white blood cells known as pus. It is often associated with an underlying condition such as tuberculosis or meningitis. Infections caused by bacteria that produce red blood cells (such as streptococcus pneumoniae) can lead to peniculistomas due to the accumulation of these red blood cells in the body, causing inflammation and producing pus.