We report a case of 28year old female from North India who also presented with pancerebellar ataxia following a febrile illness. == DDR1-IN-1 Case presentation == A 28years old female without any comorbidities presented in the month of September (just after the rainy season in North India), with complaints of high grade fever intended for 10days, 18days prior to admission. most of them resulting DDR1-IN-1 from endothelial damage and vasculitis. Immune mediated phenomenon with no structural damage is another possible mechanism leading to cerebellar ataxia. Cerebellar ataxia due to common tropical infections should be ruled out in the appropriate setting, because early institution of treatment can ease off neurological morbidity. The case report highlights the importance of determining a reversible cause of cerebellar ataixa due to a tropical contamination, possibly due to a immune mediated phenomenon, and would be of interest to both internists and neurologists. Keywords: Febrile illness, Leptosiprosis, Ataxia, Immune mediated == Background == Leptospirosis, a common zoonotic disease caused by spirochete, Leptospira interrogans involves nervous system in around 10-15% of the cases, the commonest being aseptic meningitis [1, 2]. Cerebellar ataxia is a rare manifestation of Leptospirosis [2]. We report a case of 28 year old female from North DDR1-IN-1 India who presented with pancerebellar ataxia following a febrile illness. == Case demonstration == A 28 years old female without any comorbidities presented in the month of September (just after the rainy season in North India), with complaints of high grade fever for 10 days, 18 days prior to admission. 5 days after subsidence of fever, she developed gait ataxia with tremulousness of hands. The following day time, she had an episode of generalized tonic clonic seizure followed by modified sensorium. On examination, the lady was conscious and oriented to time, place and person. Neurological examination exposed broken horizontal pursuits and hypermetric saccades, pancerebellar indicators in form of gait ataxia, scanning speech, bilateral dysmetria and intention tremor, dysdiadochokinesia, rebound phenomena and impaired heel knee shin test. On investigating, her CSF analysis was normal (no cells; regular sugar and proteins) and the cranial contrast MRI was also regular (Fig. 1). Her hemogram showed a low hemoglobin (9. 4 g/dl), thrombocytopenia (platelets 86, 000) with regular leucocyte count number. Serum biochemistry revealed deranged liver function tests (T. bilirubin -1. 9 mg/dl, Alanine aminotransferase (AST -78 U/L and Aspartate aminotransferase (ALT -88 U/L). Her renal function test (serum urea, creatinine), viral markers (HBs Ag detection and Anti HCV antibodies), Malaria work up (pLDH and anti HRP2 antibodies by Quick Diagnostic Test, Direct microscopy with solid and thin smears) and Widal test were bad. Dengue contamination was ruled out with quick chromatographic immunoassay for NS 1 antigen and IgG and IgM antibodies. Ultrasound abdomen showed presence of fatty liver. During the hospital stay, the lady showed a further rise in her serum transaminases (AST -391 U/L and AST -389 U/L). Serum Leptospira serology showed large titres of IgM (ELISA-SD Bioline) and MAT (microscopic agglutination test; serovar canicola, RMRC, Port Blair, India) titre > 1: 800. Diagnosis of Leptospira infection was made using modified Faines criteria (7 – clinical, 5 – epidemiological and 15 – positive serology) [3]. == Fig. 1 . == MRI images with FLAIR series showing regular cerebellum The lady was used intravenous ceftriaxone for fourteen days. On fourth day, her anemia, thrombocytopenia and transaminitis started boosting. At 30 days follow up, your lady had noted recovery of ataxia and she can walk separately. == Discourse == Leptospirosis is a zoonotic disease using a worldwide prevalance and protean clinical manifestations. Human beings are the extra host exactly who are usually afflicted after contact with contaminated drinking water, urine, bloodstream or muscle from afflicted rodents. The incubation period is 1-2 weeks. Costly important reason behind acute febrile illness in China, the Indian subcontinent, Southeast Asia, Africa, South usa and Central America wherever malaria, typhoid and melindre are also prevalent [4]. Its scientific features range between asymptomatic infections to life harmful Weils problem. Usually a biphasic health issues, theinitial leptospiremic phase may possibly last just for 3-7 times followed by a great immune stage lasting 4-30 days. Leptospiremic phase can be characterized by pasional involvement which will involve the liver, kidneys, hematological and respiratory system. Nerve involvement can be attributed to Rabbit Polyclonal to SFRS17A the immune response of the human body against the patient [5]. Neuro-leptospirosis arises in about 10-15% of patients, [1] aseptic meningitis being the most common neurological outward exhibition [2]. Myeloradiculopathy, myelopathy, Guillain Stipe.