Neur ochirurgia 24 (198 1) 14 7Summa ry Th e case of a 66 -year-old female German patient is present ed. The diagnosis of smouldering pyogeni c bra in ab scess was made based on clinical signs, angiogra phy and computed to mograph y, On ly after neurosurg ica l removal of the abscess the pa thohistologica l exa mination revealed tuberculous aetiology of the abscess wi th central liquefaction.
Key-Words: Brain abscess -TuberculosisIntrakranieller tub erkulöser Abszeß mit dem Erscheinungsbild eines pyogenen Abszesses Es wird über eine 66jä hrige deutsche Pati entin berichtet, bei der nach klinischer, angiogra phischer und cornputerto mographische r Unte rsuchung ein nicht ga nz frischer H irn abszeß diagnostiziert und opera tiv entfernt wurde. Erst die histol ogische Untersuchung ent hüllte die tub erkulöse Ätio log ie des Abszesses mit zentr aler eitriger Einschmelzu ng.Since th e incid ence of intracran ial mani festation s of tub erculosis dropped drasticall y a fter int roduetion of mod ern tub erculos ta tic agents , the po ssibility of tu berculou s infec tion of th e central nervou s system is rarely tak en int o co nside ra tion when eva lua ting infections of the centra l nervo us system. This situa tion is different in countries with higher rare s of int rac ra nia l tub ercul ou s manifestat ions, as reported fro m India (3, 6, 13 ) or, e.g., from Grea t Brita in. In Great Britain usuall y immigran ts from the Indian subcontinent are responsible for the higher ra te of incidence of cereb ral tuberculous manifestation s (1, 8, 10, 12, 16). T he diag nostic procedures incl uding tech nical means like com puterized tomography in cases of suspected intracranial tu berculou s infec tions have been outlined elsew here formerly in va rio us paper s (2, 4, 5, 12, 16).
Case reportA fema le German parienr, 66 years of age, hou sewife, was first troubled by visua l disturbanc es in Decemb er 1978 (veining pa le circles in her optic field ) for some days. In her past history she o nly reported abo ut an unspecified ear disease 35 yea rs ago and abo ut a " density in th e lung s" 3 1 yea rs ago . Three and a half months a fter the episode o f visua l anoma lies she was admitted to ho spital becau se of headache of varying int en sity and location. Th ese compla ints togeth er with sudden fatig ue and reduced memory led to neur ological exa mina tio n in ea rly March '7 9 which disclosed no neurological disorders. H owever in an electroencepha log ram a 8-foc us was demonstra ted in the left temporo-parietal region. In the following CAT -scan of th e head an almos t ro un d hyperd ense zone wit h cent ral hy podensiry measur ing 2 cm in diameter was found in the left tempo ro-occ ipit al region sur ro unded by perifocal oede ma ( fig. 1-3 ). A mild psychiatric disorder (d rowsiness, impairme nt of mental facu lties, speechdisturbances) was noted. Cranial nerves were no rmal, bu t a weakness of the right a rm was no ted as weil as slightly hyperact ive deep tendon reflexes in the righ t a rm. No other neurological di...