International Research Journal of Medical Sciences __________________________________________________ Vol. 1(1), 18-19, February (2013)
Mini Review Paper Pneumonia caused by Candida kefyr in a Pediatric patient with Acute Lymphoblastic Leukaemia: Case Report Dinkar A.1, Bhattacharyya S.1, Kumar D.1, Kumar A.2, Gupta P.1, Banerjee G.1 and Singh M.1
1Departments of Microbiology, King George’s Medical University (KGMU), Lucknow-226003, UP, INDIA
2Departments of Pediatrics, King George’s Medical University (KGMU), Lucknow-226003, UP, INDIA
Available online at: www.isca.in
Received 10th January 2013, revised 21st January 2013, accepted 5th February 2013
Abstract Acute lymphoblastic leukaemia (ALL)is one of the commonest malignancies in children. The disease per se and immunosuppressant cytotoxic drugs administered, together make the patients of ALL very prone to secondary infections. Yeasts recovered from pulmonary tissue are mostly treated as colonisers and left unreported, though they can also be rarely responsible for pneumonia, especially in settings of haematological malignancies. Here we report a case of lung infection due to Candida kefyr in a patient with ALL. Keywords: ALL, Candida kefyr, immunocompromised. Introduction
leucocyte count of the patient was 8000/µl and absolute Neutrophil count was 5200/ µl. The patient was put on
Acute leukaemia, a tumour of the haematological progenitor Tetracycline, Tramadol, Fluconazole, Vincristine, Methotrexate cells of the Bone marrow, is the commonest paediatric and L-Asparaginase. Sputum sample was collected from the malignancy1. Of this, Acute Lymphoblastic Leukaemia (ALL) patient and sent to the Department of Microbiology for fungal comprises about 75%1. The disease commonly presents with culture. A 10% KOH smear showed multiple budding yeasts as neutropenia, which is a risk factor for secondary infections in well as pus cells, with a Quality (Q) score of +3(plus three). this group of patients2. An absolute neutrophil count of <500/µl Gram stain also showed similar findings. The sample was has been associated with significant risk of infection2. Infect, a inoculated in 2 Saboraud’s Dextrose agar (SDA) slants and patient with febrile neutropenia has a 60% likelihood of being incubated at 370C and 250C separately. After 48 hours of infected3. Most of these are bloodstream infections (BSI), incubation, opaque, smooth white colonies grew on both tubes. although other organs may also be affected3. Pulmonary A Lactophenol Cotton blue (LCB) mount of the colonies infiltrates develop in about 60-80% such patients, according to showed budding yeast cells. A loopful of the growth was
scientific literature4. Such infiltrates can be due to infection, streaked onto Corn meal agar by slit inoculation (Dalmau haemorrhage or leukemic involvement of lung parenchyma5. In technique) and incubated at 250C for 48 hours. Germ tube test a study, about 12% of all episodes of infectious pneumonia in and Sugar fermentation and assimilation tests were also ALL are caused by fungi, most commonly by Aspergillus spp.6. performed. The isolate was Germ tube negative and showed Candida spp. is also a known cause of pneumonia in these elongated budding yeasts and pseudohyphae arranged in patients, although the incidence has decreased due to irregular parallel bundles (logs in stream appearance) on high prophylactic antifungal therapy7.
power (40X) microscopic examination of the streaked Corn
meal agar plate. Glucose, lactose and sucrose were fermented
Case Report
but not maltose. Lactose, glucose and sucrose were assimilated but not maltose. Based on these phenotypic characteristics, the
A 13 year-old male patient presented in the Paediatric outpatient isolate was identified as Candida kefyr8. Antifungal
Department of the Medical University with respiratory distress susceptibility test was done by the disc diffusion technique on
and hepatosplenomegaly. The patient was admitted and baseline Mueller-Hinton agar with 2% glucose and 0.5 µg/ml of
haematological investigations were performed. Based on bone Methylene blue, as per CLSI protocol9. The yeast isolate was
marrow analysis, a diagnosis of B cell ALL was achieved. The susceptible to fluconazole and voriconazole. The sample was
patient was suffering from cough and breathlessness since 3 sent on 2 more occasions, which yielded the same results. There
months, and also had 2 episodes of haemoptysis. A chest was no bacterial growth in the sputum samples. Blood culture
roentgenogram (postero-anterior view) was carried out, which on biphasic media was sterile after 21 days of incubation. The
revealed cavitatory lesions in lingular lobe of left lung with patient’s breathlessness improved on fluconazole therapy and
patchy fibrosis, along with nodular infiltrates. The total there were no further bouts of haemoptysis.
International Science Congress Association International Research Journal of Medical Sciences ________________________________________________________________ Vol. 1(1), 18-19, February (2013) Int. Res. J. Medical Sci.Discussion References
ALL is the commonest pediatric malignancy worldwide1. This 1. Esparza S.D. and Sakamoto K.M., Topics in Pediatric haematological malignancy is often complicated by secondary
Leukemia – Acute Lymphoblastic Leukemia, Medscape
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that this yeast species must be considered as a causative agent in
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infections in haematological malignancies when other 8. Larone D.H., Medically important Fungi: A guide to aetiologies have been ruled out.
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Conclusion 9. NCCLS, Method for antifungal disk diffusion susceptibility Candida kefyr should be suspected as a possible cause of
testing of yeasts, Approved Standard M44-A2 (2008)
pneumonia in patients with haematological malignancies and 10. Falcone M., Accarpio F., Venditti M., Vena A., Sibio S.,
should not be regarded as a mere coloniser. The pathogenic
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potential of this yeast species needs to be studied further.
candidiasis successfully treated with anidulafungin therapy
in two patients with peritoneal carcinomatosis, J. Acknowledgement Antimicrob. Chemother(2010)
The authors are heartily thankful to Mr Mayank Agnihotri, 11. Sendid B., Lacroix C. and Bougnoux M., Is Candida kefyr junior technician and Dr Akhilesh, Junior Resident, Department
an Emerging Pathogen in Patients with Oncohematological
of Microbiology, KGMU for their assistance in identifying the
Diseases?, Clin. Inf. Dis., 43, 666–67 (2006) 12. Weichert S., Reinshagen K., Zahn K., Geginat G., Dietz A.
, Kilian A.K., Schroten H. and Tenenbaum T., Candidiasis
caused by Candida kefyr in a neonate: Case report, BMC Microbiol., 12, 61 (2012) International Science Congress Association
INTRODUCCIÓN*Imperio y canon en William Henry HudsonLeila Gómez University of Colorado, Boulder En 1941, se publica en Argentina la pionera Antología de Guillermo Enrique Hudson con estudios críticos sobre su vida y su obra , con textos de Fernando Pozzo, E. Martínez Estrada, Jorge Casares, Jorge Luis Borges, H. J. Massingham, V. S. Pritchett y Hugo Manning. Fue este uno de los principales
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