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Isolated cerebellar abscess by Norcardia asiatica: A case report with review of literature.

ABSTRACT: Human nocardiosis is primarily an opportunistic infection affecting immunocompromised patients, however, one-third of them are immunocompetent. CNS involvement is less commonly reported and associated with a grave prognosis. The majority of these patients are organ transplant recipients on immune suppressants. In the recent past, association of Nocardia asiatica with brain abscess has been reported in a few cases. We are reporting a case of isolated cerebellar abscess caused by N. asiatica in an immune-compromised adult with a review of relevant literature. A 53-year-old male presented with complaints of headache and vomiting for 14 days. There was no previous history of any comorbid illness. During presentation, he was having gait ataxia and radiology showed the right-sided cerebellar multiple lesions. Further hematological investigations revealed the patient to be HIV positive. The abscess was tapped and the pus culture showed Nocardia species. Antibiotics were started as per sensitivity and the patient did well at 3-month follow-up. Though rare, Nocardia should be kept as a differential in brain abscess patients. Owing to the different antimicrobial sensitivity patterns among Nocardia species, both appropriate speciation and susceptibility testing of uncommon species such as N. asiatica are required for their successful treatment.

SUBMITTER: Srivastava S

PROVIDER: S-EPMC7113929 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Isolated cerebellar abscess by Norcardia asiatica: A case report with review of literature.

Srivastava Sonakshi S Kanaujia Rimjhim R Sahoo Sushant Kumar SK Jani Parth P Angrup Archana A Rudramurthy Shivaprakash M SM Ray Pallab P

Journal of family medicine and primary care 20200228 2

Human nocardiosis is primarily an opportunistic infection affecting immunocompromised patients, however, one-third of them are immunocompetent. CNS involvement is less commonly reported and associated with a grave prognosis. The majority of these patients are organ transplant recipients on immune suppressants. In the recent past, association of Nocardia asiatica with brain abscess has been reported in a few cases. We are reporting a case of isolated cerebellar abscess caused by N. asia ...[more]

PMID: 32318503

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Project description:BackgroundIntestinal Ganglioneuromatosis (IG) is a rare disorder of the enteric nervous system. In pediatric age it is often associated with genetic syndromes such as Neurofibromatosis 1 (NF1), multiple endocrine neoplasia type 2B (MEN2B) and Cowden syndrome (PTEN mutation), and ganglioneuromas (GNs) may be sometimes the first sign of the disease. Isolated GNs are rare and sporadic. Clinical symptom vary and depend on the size and on the location of the GNs. This disorder affects intestinal motility and it, consequently, causes changes in bowel habits, abdominal pain, occlusive symptoms and rarely lower gastrointestinal bleeding secondary to ulceration of the intestinal mucosa. On the other hand, patients can remain asymptomatic for many years.Case presentationWe describe a 9-year-old boy referred to our emergency department for right lower quadrant abdominal pain. No familial history for gastrointestinal disorders. No history of fever or weight loss. At physical examination, he had diffused abdominal pain. Abdominal ultrasonography showed a hypoechoic formation measuring 41.8 mm by 35 mm in the right lower quadrant of the abdomen. Routine blood tests were normal, but fecal occult blood test was positive. Abdominal TC confirmed the hypodense formation, of about 5 cm in transverse diameter, in the right hypochondrium that apparently invaginated in the caecum-last ileal loop. Colonoscopy showed in the cecum an invaginated polypoid lesion of the terminal ileal loop. Laparoscopic resection of the polypoid lesion was performed. Histological diagnosis of the large neoplasm observed in the terminal ileum was diffuse ganglioneuromatosis. NF1, RET and PTEN gene tests resulted negative for specific mutations. At the 1 year follow-up, the patient presented good general condition and blood tests, fecal occult blood test, esophagogastroduodenoscopy, colonoscopy and MR-enterography were negative.ConclusionsOnly few cases are reported in literature of IG in pediatric age. Although rare, the present case suggests that this disorder must be taken in consideration in every patient with GI symptoms such as abdominal pain, constipation, lower intestinal bleeding, in order to avoid a delayed diagnosis.

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Isolated cerebellar abscess by Norcardia asiatica: A case report with review of literature.

Publications

Isolated cerebellar abscess by <i>Norcardia asiatica</i>: A case report with review of literature.

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