V. Rajshekhar et Mj. Chandy, TUBERCULOMAS PRESENTING AS ISOLATED INTRINSIC BRAIN-STEM MASSES, British journal of neurosurgery, 11(2), 1997, pp. 127-133
We document the clinical presentation, management and outcome of histo
logically verified, solitary, intrinsic brain stem tuberculomas in six
patients. The neurological symptoms and signs in these patients did n
ot distinguish their lesions from other intrinsic masses of the brain
stem. On contrast-enhanced computed tomography (CT), the tuberculomas
appeared as ring enhancing lesions in three patients and nodular contr
ast enhancing lesions in the other three. Diagnosis was established on
the basis of CT-guided stereotactic biopsy in all patients. All patie
nts were treated with antituberculous drugs for 18 months. Steroid the
rapy of 2-8 weeks duration was also used in four patients. At a median
follow-up period of 20 months (range 9-51 months), three patients wer
e asymptomatic and the other three were functioning independently with
mild disability. Although isolated, intrinsic brain stem tuberculoma
is an uncommon entity, it should be suspected in patients presenting w
ith features of an intrinsic brain stem mass and a contrast-enhancing
lesion on CT. CT-guided stereotactic biopsy usually provides evidence
of the inflammatory nature of the mass although an aetiological diagno
sis is often elusive. Early diagnosis and appropriate therapy with ant
ituberculous drugs and steroids usually results in an excellent or goo
d outcome in most instances.