Cerebral abscesses of tuberculosis origin: study of 8 cases at the University Hospital of Conakry

Tuberculosis of the central nervous system (CNS) remains endemic in developing countries with high morbidity and mortality despite advances in imaging and treatment. The objective of our work was to describe the diagnostic and therapeutic difficulties of this pathology in the context of a country with limited health resources. We retrospectively studied 8 cerebral tuberculosis abscess files, collected in the archives of the neurosurgery department of the Conakry University Hospital over a 5-year period (January 2013–December 2017). The diagnosis was made by scanning and by isolation of acid-fast bacilli (AFB) by direct examination of pus. Mean age was 33 years (9–56 years), sex, 5H 5 men/3F 3 women. History of pulmonary TB, 3 cases; TB contagious, 5 cases; TST ITR positive, 5 cases; associated visceral TB, 5 cases; HIV positive serology, 2 cases. The clinic was dominated by altered consciousness, 7 cases; focal signs, 7 cases; and fever, 5 cases. The site was hemispherical in 7 cases and one case in the posterior brain fossa. Treatment was medico-surgical in all patients. The evolution was favorable in 3 cases, the neurological sequelae in 3 cases, 2 cases of death, and 2 cases of recurrence. Cerebral tuberculous abscesses constitute a medico-surgical emergency. Despite their rarity, morbidity and mortality remains high in the context of developing countries due to diagnostic and therapeutic delays.