Identification of Candida spp. isolated from oral mucosa in patients with leukemias and lymphomas in Iran

  • Sara Sara Hamzehee Student Research Committee, Department of Parasitology and Mycology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
  • Davood Kalantar-Neyestanaki Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
  • Mohammad Ali Mohammadi Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
  • Saeed Nasibi Research Center for Hydatid Disease in Iran, Kerman University of Medical Sciences, Kerman, Iran
  • Seyed Amin Ayatollahi Mousavi Department of Medical Mycology and Parasitology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
Candida spp, Oral candidiasis, Hematologic malignancies, Lymphomas


Background and Objectives: Oral candidiasis is a serious problem for immunocompromised patients, especially patients with hematological malignancies. After becoming a systemic candidiasis it is difficult to diagnose, control and treat in individuals with hematological malignancies. The aim of this study was to diagnose candidiasis in the oral mucosa of patients with leukemias and lymphomas in a timely manner in order to prevent their progression to systemic candidiasis.

Materials and Methods: In this cross sectional study, 50 clinical samples were collected from the mouth of patients with hematological malignancies undergoing chemotherapy from the oncology units of teaching hospitals in Kerman, Iran. Patients were from Kerman, Sistan-Baluchestan and Hormozgan in south-eastern Iran. Sampling was restricted to patients with diagnosed acute lymphoid leukemia (ALL); acute myeloid leukemia (AML); chronic lymphoid leukemia (CLL); chronic myeloid leukemia (CML); Hodgkin’s lymphoma (HL) and non-Hodgkin’s lymphoma (NHL). Presumptive species identification of fungi was performed using conventional methods like colony characteristics on CHROMagar Candida medium, germ tube production, and assessing the morphology fungi on corn meal agar. Confirmation of presumptive candida isolates was performed using PCR-RFLP.

Results: From a total of 50, 14 patients (28%) had positive oral candidiasis. Candida albicans (57.14%) was the most common species followed by Candida glabrata (14.28%), Candida parapsilosis (14.28%), Candida krusei (7.14%) and Candida kefyr (7.14%). Candida albicans had the highest rate of oral infection in ALL (35.71%) and then NHL (28.57%) patients.

Conclusion: The results indicate that oral candidiasis is a prevalent fungal infection in the patients with hematologic malignancies with C. albicans being the main etiological agent. However, other species of Candida cause similar infections in these patients.


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How to Cite
Sara Hamzehee S, Kalantar-Neyestanaki D, Mohammadi MA, Nasibi S, Ayatollahi Mousavi SA. Identification of Candida spp. isolated from oral mucosa in patients with leukemias and lymphomas in Iran. Iran J Microbiol. 11(2):114-119.
Original Article(s)