Brain abscess and congenital heart disease.
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Adolescent↗
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Autoimmune neutropenia of infancy with multiple brain abscesses during the course of human herpesvirus-6 infection.
Autoimmune neutropenia of infancy is characterized by recurrent infections such as pneumonia, otitis media, impetigo, purulent skin regions, gastritis, and upper respiratory infection. However, severe bacterial infection is uncommon. This report documents a 9-month-old boy presenting with autoimmune neutropenia in association with multiple brain abscesses during the course of human herpesvirus (HHV)-6 infection. HHV-6 has a tendency of neurovirulence, which can destroy the blood-brain barrier and facilitate the easy invasion of agents inside the brain. Although autoimmune neutropenia of infancy is benign and self limiting, it must be emphasized that severe bacterial infection will be induced by concurrent viral infection in this specific disorder.
Autoimmune Diseases↗
Cerebral infarctions and brain abscess due to Lemierre syndrome.
Lemierre syndrome is characterized by anaerobic bacterial infection in the head and neck, causing thrombophlebitis of the jugular vein and septic metastasis to various distant organs, most often the lungs. Here we describe previously unreported clinical features of cerebral infarctions and brain abscess due to metastatic septic embolism of this uncommon but lethal syndrome, and the successful course of treatment with ampicillin, cefotaxime and metronidazole.
Brain Abscess↗
Meningoencephalitis and brain abscessation due to Escherichia coli in a 2 week old alpaca cria.
An alpaca cria which received insufficient colostrum, presented with lethargy, anorexia, no passage of faeces and neurological signs. Differential diagnosis included neonatal septicaemia, meningitis and gastrointestinal obstruction. The cria died despite treatment. Necropsy revealed brain abscesses with Escherichia Coli in pure culture. The importance of the amount and timing of colostrum intake is discussed.
Aging↗
Monosymptomatic hypochondriacal psychosis complicated by self-inflicted skin ulceration, skull defect and brain abscess.
Self-inflicted dermatoses are associated with personality disorders and psychoses, including monosymptomatic hypochondriacal psychosis (MHP), which is characterized by a delusion involving a particular hypochondriacal concern. We report an unusual case of MHP with severe mutilation of the skin complicated by a skull defect and brain abscess. The patient was a 66-year-old uneducated man who damaged his forehead repeatedly because he believed that a 'toxic root' in the forehead was the source of his general ailment. He admitted that the lesions were self-inflicted. There was no other evidence of psychosis or primary skin disease and MHP was diagnosed. Despite initial favourable response to pimozide, the patient was lost to follow-up for 4 years, during which he continued to damage his forehead and applied corrosive agents. He was then referred with a personality change and a 6 x 4 cm bony defect in the skull, complicated by herniation and abscess of the left frontal lobe. This case represents one of the most severe examples of self-mutilation ever reported. The differential diagnosis of dermatitis artefacta and the principles of treating MHP are discussed.
Aged↗
Brain abscess associated with eyelid contracture.
A 4-year-old girl presented to our hospital with inability to close her left eye and headache. Seven months earlier, she had fallen and her left eye had been injured. Physical examination and radiologic investigations revealed contracture of the left eye and brain abscess. The case is interesting because we have found out that injuries of the eyelids may lead to intracranial complications in the long term, although they do not cause any symptoms of an intracranial abnormality in the short term.
Brain Abscess↗
Brain abscess: a need to screen for pulmonary arteriovenous malformations.
BACKGROUND: Pulmonary arteriovenous malformations (PAVMs) are direct connections between an artery and a vein in the pulmonary circulation associated with hereditary hemorrhagic telangiectasia in up to 88% of cases. Patients with PAVMs are at increased risk of brain abscess (BA). This study aimed to provide preliminary data on the prevalence of PAVMs among BA patients. METHODS: Administrative hospital discharge forms were used to identify patients with BA; possible PAVM patients were screened. RESULTS: 126 patients with BA were identified. Two patients had undiagnosed PAVMs at the time of admission for BA. The age-adjusted incidence of BA was 6.3 cases/1 million/year, with a male:female ratio of 2.0. CONCLUSION: Although PAVMs are rare conditions, they play a role in the development of BA. PAVMs are usually not recognized at the time of BA, thus exposing patients to life-threatening risks.
Arteriovenous Malformations↗
Low-field magnetic resonance imaging of a pyocephalus and a suspected brain abscess in a German Shepherd dog.
Magnetic resonance imaging was performed on an eight-year-old, neutered female German Shepherd dog with a history of acute depression, inappetence, and hyperthermia. A lesion in the cerebrum was suspected. Possible differential diagnoses were meningoencephalitis, neoplasia, and vascular lesion (infarction, bleeding). A ring enhancing lesion was found in the basal ganglia on the left side with edema of the surrounding brain tissue. A similar mass lesion was present in the right pterygoid musculature. With inversion recovery sequences an altered composition of the cerebrospinal fluid (CSF) in the left lateral ventricle could be detected. CSF analysis confirmed a pyocephalus, probably due to rupture of a brain abscess into the left lateral ventricle.
Animals↗
Optic neuropathy due to brain abscess.
A 26-year-old man went blind as part of a multifocal central nervous system disease. Bilateral optic nerve head pallor developed four weeks later. There had been no papilledema. In this setting, the appearance of optic atrophy without preceding papilledema in part led to the clinical diagnosis of severe disseminated encephalomyelitis. At autopsy multiple brain abscesses were found, including an area of inflammation within the chiasm.
Adult↗
Phaeohyphomycotic brain abscess due to Ochroconis gallopavum in a patient with malignant lymphoma of a large cell type.
A 60-year-old man with a 9-year history of malignant lymphoma developed an initial pulmonary infection with Nocardia asteroides which later disseminated to the central nervous system with multiple brain abscesses. He was treated successfully with intravenous trimethoprim-sulfamethoxazole for 6 weeks. A follow-up computed tomography (CT) scan showed complete resolution of the abscesses. Two years later, he returned to the hospital with a 2-week history of confusion, loss of concentration, ataxia, and leaning to the left. A CT scan revealed an enhancing multiloculated complex right frontal lesion. Craniotomy revealed a large right frontal lobe abscess, which was totally resected. Histopathologic examination of the resected tissue revealed multiple, lightly pigmented, septate, branched hyphal elements typical of phaeohyphomycosis. The fungal isolate cultured from the tissue was a dematiaceous, thermotolerant fungus that was identified as Ochroconis gallopavum. Despite treatment with amphotericin B, flucytosine and fluconazole, the patient gradually deteriorated and died. This case represents the third fatal infection, the second from the southeastern United States, due to O. gallopavum.
Amphotericin B↗
[Endophthalmitis and multiple brain abscess in a patient with endocarditis due to Streptococcus agalactiae].
Endogenous endophthalmitis is a rare disease caused by hematogenic germ spread from an internal focus. Infections due to Streptococcus agalactiae are infrequent in adults although new cases had been described recently associated to inmunodepression. We present a patient with endocarditis due to Streptococcus agalactiae, endophthalmitis and multiple brain abscess. We also review the literature.
Brain Abscess↗
Brain abscess due to Haemophilus aphrophilus: possible canine transmission.
A 58-year-old patient developed progressive right hemiparesis and a hemisensory loss. Computed tomography demonstrated a lesion in the left frontoparietal region with ring enhancement. A craniotomy was performed and an abscess was removed, which on culture grew Haemophilus aphrophilus. The same organism was isolated from the patient's poodle dog but not from three other poodles of family members. This, along with previous reports, suggests that the poodle may be a vector in the transmission of this organism, which rarely may cause a brain abscess.
Animals↗
Multiple actinomyces brain abscesses: case report.
A case of multiple cerebral abscesses caused by actinomyces is reported in a 37 year old male with mucoepidermoid carcinoma of the right lung. In conjunction with penicillin, sulfonamide and erythromycin, the patient underwent stereotactic surgery for aspiration of the brain abscesses under (CT). The bacteria, considered to originate from the right lung, were identified from the abscess material obtained at surgery. Using proper therapy to control infection and intracranial pressure is important. A lon g term follow up with frequent computerised tomography evaluation has been conducted and the patient outcome has been successful recovery.
Actinomycosis↗
[Peripheral arterial aneurysm of the brain occurring after brain abscess extirpation and healing spontaneously-report of a case and review of the literature (author's transl)].
In 33 year-old man an aneurysm of a pheripheral branch of the right middle cerebral artery was disclosed by angiography 8 days after extirpation of a parietotemporal brain abscess. The aneurysm was absent in the preoperative angiogram. Since the site of the aneutysm coincided with the operative field, it is sure that the etiology of the aneurysm was related to operative trauma and/or arteritis. Although inflammatory or mycotic factor could not be excluded from its etiology, it seems reasonable that traumatic factor was major one. The aneurysm was found to have disappeared eventually in the angiogram made on 372th postoperative day. Traumatic aneurysms arising from peripheral branches of the intracranial arteries are very rare. The first case was reported by Krauland in 1949. We collected 32 such cases from the literature. Of the 33 cases including the present one, 5 are iatrogenic. In more than half of the 33 cases, aneurysms were formed within 14 days following head injury. Posttraumatic delayed hemorrhage was found in 15 cases, the hemorrhage occurring within one month following injury in 12 cases. Of 31 cases with known prognosis, 11 died, 6 of them dying of delayed hemorrhage. Aneurysm operation was performed in 21 cases and 15 of them survived. In the present case, aneurysm luckily healed spontaneously. There are two cases including the present one, of spontaneous healing in the 33 cases. We believe surgical treatment is one of choice whenever possible.
Adult↗
Multiple brain abscesses due to Penicillium spp infection.
We present a case of central nervous system (CNS) infection by a member of the Penicillium genera in a HIV-negative man in Brazil. The patient was admitted complaining of loss of visual fields and speech disturbances. CT scan revealed multiple brain abscesses. Stereotactic biopsies revealed fungal infection and amphotericin B treatment begun with initial improvement. The patient died few days later as a consequence of massive gastrointestinal bleeding due to ruptured esophageal varices. The necropsy and final microbiologic analyses disclosed infection by Penicillium sp. There are thousands of fungal species of the Penicillium genera. Systemic penicilliosis is caused by the P. marneffei and was formerly a rare disease, but now is one of the most common opportunistic infection of AIDS patients in Southeast Asia. The clinical presentation usually involves the respiratory system and the skin, besides general symptoms like fever and weight loss. Penicillium spp infection caused by species other than P. marneffei normally cause only superficial or allergic disease but rare cases of invasive disease do occur. We report the fourth case of Penicillium spp CNS infection.
Adult↗
Brain abscess caused by Cladosporium trichoides (Bantianum): a case with paranasal sinus involvement.
Dematiacious fungi (ie, fungi with dark hyphae) are a rare and usually fatal cause of central nervous system infection. Cladosporium trichoides has been implicated most frequently. Documentation of extra-CNS involvement has been rare. Our patient had a brain abscess and paranasal sinus infection due to C trichoides. The organism was sensitive to less than or equal 2mug/ml of flucytosine. Although our patient did not receive flucytosine, it is possible that this drug, because of its excellent penetration into the cerebrospinal fluid, may be a useful therapeutic agent in cerebral cladosporiosis.
Brain Abscess↗
Brain abscess; aetiology, symptomatology and treatment.
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Brain Abscess↗