# Demyelinating Neurobrucellosis Presenting With Neuropsychiatric Manifestations

**Authors:** Mojtaba Varshochi, Fatemeh Ravanbakhsh Ghavghani

PMC · DOI: 10.1155/carm/2210460 · Case Reports in Medicine · 2026-02-23

## TL;DR

A rare case of brain inflammation caused by brucellosis presented with psychiatric symptoms and improved after specific treatment.

## Contribution

Highlights demyelinating neurobrucellosis as a rare but treatable cause of psychiatric symptoms in endemic regions.

## Key findings

- Patient showed psychiatric symptoms unresponsive to antipsychotics but responded to anti-Brucella treatment.
- MRI revealed demyelinating lesions in brain regions linked to cognitive and behavioral functions.
- Serology confirmed brucellosis as the underlying cause of neurological and psychiatric manifestations.

## Abstract

Neurobrucellosis with psychiatric manifestations is an uncommon manifestation of brucellosis. Herein, we report a 31‐year‐old male complaining of dizziness, nausea, malaise, imbalance, amnesia, psychosis, delusion, and impulsive and disorganized behavior. He was not responsive to antipsychotic treatment, and his brain MRI showed demyelinating hyperintensity foci in the periventricular and paraventricular areas and the subcortical areas of the right temporal and frontal lobes. His serum and cerebrospinal fluid serology were in favor of brucellosis, and he dramatically responded to anti‐Brucella medications. Although demyelinating neurobrucellosis with psychiatric manifestations is rare, it should be suspected in unresponsive patients coming from brucellosis‐endemic areas.

## Linked entities

- **Diseases:** brucellosis (MONDO:0005683), psychosis (MONDO:0005485)

## Full-text entities

- **Genes:** CCL2 (C-C motif chemokine ligand 2) [NCBI Gene 6347] {aka GDCF-2, HC11, HSMCR30, MCAF, MCP-1, MCP1}, IL1B (interleukin 1 beta) [NCBI Gene 3553] {aka IL-1, IL1-BETA, IL1F2, IL1beta}, ATHS (atherosclerosis susceptibility (lipoprotein associated)) [NCBI Gene 470] {aka ALP}, CXCL1 (C-X-C motif chemokine ligand 1) [NCBI Gene 2919] {aka FSP, GRO1, GROa, MGSA, MGSA-a, NAP-3}, TNF (tumor necrosis factor) [NCBI Gene 7124] {aka DIF, IMD127, TNF-alpha, TNFA, TNFSF2, TNLG1F}, ADA (adenosine deaminase) [NCBI Gene 100] {aka ADA1}, AP2B1 (adaptor related protein complex 2 subunit beta 1) [NCBI Gene 163] {aka ADTB2, AP105B, AP2-BETA, CLAPB1}, IL6 (interleukin 6) [NCBI Gene 3569] {aka BSF-2, BSF2, CDF, HGF, HSF, IFN-beta-2}, CRP (C-reactive protein) [NCBI Gene 1401] {aka PTX1}, SLC17A5 (solute carrier family 17 member 5) [NCBI Gene 26503] {aka AST, ISSD, NSD, SD, SIALIN, SIASD}
- **Diseases:** convulsions (MESH:D012640), sensorineural deafness (MESH:D006319), hearing loss (MESH:D034381), motor deficits (MESH:D009461), paraplegia (MESH:D010264), fever (MESH:D005334), vomiting (MESH:D014839), disorganized (MESH:D012562), pseudotumor (MESH:D006104), Mediterranean fever (MESH:D010505), musculoskeletal pain (MESH:D059352), lesions (MESH:D009059), nausea (MESH:D009325), nystagmus (MESH:D009759), fatigue (MESH:D005221), dysarthria (MESH:D004401), confusion (MESH:D003221), stroke (MESH:D020521), insomnia (MESH:D007319), neuropsychiatric symptoms (MESH:D001523), C-ANCA (MESH:D056648), neck stiffness (MESH:D006258), schizophrenia (MESH:D012559), anxiety (MESH:D001007), Meningitis (MESH:D008580), headache (MESH:D006261), abscess (MESH:D000038), inflammation (MESH:D007249), papilledema (MESH:D010211), vasculitis (MESH:D014657), syphilis (MESH:D013587), meningoencephalitis (MESH:D008590), flu (MESH:D007251), sciatica (MESH:D012585), ocular and skin lesions (MESH:D012871), bacterial zoonosis (MESH:D000086966), multiple sclerosis (MESH:D009103), Hydrocephalus (MESH:D006849), incontinence (MESH:D014549), lymphocytosis (MESH:D008218), amnesia (MESH:D000647), neurological sequelae (MESH:D009422), cognitive impairment (MESH:D003072), memory disorder (MESH:D008569), infectious (MESH:D003141), Brucellosis (MESH:D002006), bacterial (MESH:D001424), reactive microgliosis (MESH:D000275), depression (MESH:D003866), impulsive (MESH:D007174), acute psychosis (MESH:D011605), tuberculosis (MESH:D014376), granuloma (MESH:D006099), personality disorder (MESH:D010554), infection (MESH:D007239), agitation (MESH:D011595), Psychosis (MESH:D011618), neuropsychiatric (MESH:C000631768), sarcoidosis (MESH:D012507), bacteremia (MESH:D016470)
- **Chemicals:** acyclovir (MESH:D000212), vancomycin (MESH:D014640), doxycycline (MESH:D004318), phosphate (MESH:D010710), oxygen (MESH:D010100), metoclopramide (MESH:D008787), magnesium (MESH:D008274), glucose (MESH:D005947), calcium (MESH:D002118), lipopolysaccharides (MESH:D008070), ceftriaxone (MESH:D002443), 2-mercaptoethanol (MESH:D008623), rifampin (MESH:D012293), HBs antigen (-), potassium (MESH:D011188), sodium (MESH:D012964), olanzapine (MESH:D000077152)
- **Species:** Sus scrofa (pig, species) [taxon 9823], Human immunodeficiency virus 1 (no rank) [taxon 11676], Brucella (genus) [taxon 234], Ovis aries (domestic sheep, species) [taxon 9940], Capra hircus (domestic goat, species) [taxon 9925], Bos taurus (bovine, species) [taxon 9913], Bacteria Latreille et al. 1825 (Bacteria stick insect, genus) [taxon 629395], Homo sapiens (human, species) [taxon 9606]

## Full text

_Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/PMC12929651/full.md

## Figures

1 figure with captions in the complete paper: https://tomesphere.com/paper/PMC12929651/full.md

## References

24 references — full list in the complete paper: https://tomesphere.com/paper/PMC12929651/full.md

---
Source: https://tomesphere.com/paper/PMC12929651