2022年9月18日 · Rich focus is the caseating subpial or subependymal foci of tuberculous infection in the cortex of the brain 2. It becomes important when a tuberculous focus …

2024年9月2日 · In TBM, the meninges are seeded by MTB and form subependymal collections called Rich foci. These foci can rupture into the subarachnoid space and cause an intense …

A Rich focus is a tuberculous granuloma occurring within the cortex or meninges of the brain that ruptures into the subarachnoid space, causing tuberculous meningitis. [1]

In the brain, the TB bacilli initiate the development of tuberculous lesions (known as Rich foci) in the meninges or the subpial or subependymal surface . Rich and McCordock demonstrated …

2025年2月13日 · Tuberculous meningitis is caused by Mycobacterium tuberculosis. The infection spreads hematogenously from a distant focal point, usually pulmonary tuberculosis and lodges …

TBM occurs when subependymal or subpial tubercles, also known as “rich foci” seed during bacillemia of primary infection or disseminated disease [17,18,22,23]. This rupture of the …

For CNS tuberculosis, the disease begins with the development of small tuberculous foci (Rich foci) in the brain, spinal cord, or meninges. The location of these foci and the capacity to …

Tuberculous meningitis (TBM) develops most often when a caseating meningeal or sub-cortical focus, the Rich focus, discharges its contents into the subarachnoid space. It is recognized …

Rich foci are caseating brain tuberculous (TB) granulomas surrounding the immigrated TB bacilli. Rich foci are hypothesized as an underlying pathological mechanism of TB meningitis. The …

2017年5月1日 · In the 1930s Rich and McCordock proposed that bacteria travel via the blood and form a tuberculoma (Rich foci). These foci may rupture resulting in diffuse meningitis. …