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[Cryptococcosis of the central nervous system. Clinical and diagnostic characteristics].

Abstract：

BACKGROUND:Evaluation of the clinical features and diagnostic methods in the cryptococcosis of central nervous system (CNS), so as to facilitate a rapid recognition which may result in earlier diagnosis in view of the rapid increase in frequency shown in that condition. METHODS:A retrospective study of 13 patients with CNS cryptococcosis seen during the last 4 years. The isolation of C. neoformans in CSF, cerebral biopsy or other appropriate tissue was required for inclusion. The following were evaluated: 1) Age, sex, and underlying disease; 2) Clinical features; 3) Yield of biochemical, microbiological, pathological and imaging diagnostic procedures; 4) Treatment and evolution. RESULTS:Age (X +/- SD): 37 +/- 20 years (range: 15-81). Sex: 77% males. Underlying disease was identified in 10 cases (77%): HIV infection in 7 (54%), diabetes mellitus in 2, alcohol abuse in 2, systemic erythematous lupus on corticoid and immunosuppressant therapy in 1 and chronic liver disease in 1. Clinical features on admission: abnormal behaviour in 10 (77%), headache in 10, low/high grade fever in 9 (69%), abnormal consciousness in 7, respiratory features in 5 (38%); motor deficit, cranial nerve involvement and visual abnormalities in 4 (31%) each; and meningeal signs in 3. Investigation of CSF was carried out in 12 cases. The biochemical studies were normal in 5 (42%). China ink stain was positive in 55% of cases, and latex agglutination in 80%. CSF culture was diagnostic in 92% of cases and the culture for C. neoformans was positive in 2 cerebral and one pulmonary biopsies and in two urine cultures. All patients were treated with amphotericin B and flucytosine was associated in 9. Two patients were subsequently treated with fluconazole. The outcome was good in 8 patients, and 4 had sequelae. One case relapsed. CONCLUSIONS:1) HIV infection is the most common underlying disease. 2) There is a high rate of CNS cryptococcosis with normal CSF or with mild biochemical abnormalities. 3) The yield of the microbiological studies of CSF is high, with diagnostic confirmation in 92% of cases. 4) Differences in CNS cryptococcosis were not found between cases with HIV infection and those with other underlying diseases.

journal_name

Med Clin (Barc)

journal_title

Medicina clinica

authors

Jiménez-Mejías ME,Fernández A,Alfaro E,Regordan C,Pachón Díaz J

subject

Has Abstract

pub_date

1991-11-09 00:00:00

pages

604-8

issue

eissn

0025-7753

issn

1578-8989

journal_volume

pub_type

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[Cryptococcosis of the central nervous system. Clinical and diagnostic characteristics].