Incidental Finding of Microfilaria in Submental Lymph Node Cytology: A Rare Case

  • Dr. Vaidehi Nagar GMERS Medical College and Hospital, Valsad
  • Dr. Vibha Patel
  • Dr. Sharad Gor
Keywords: cytology, filariasis, granulomatous inflammation, incidental, submental lymphnode


Filariasis is a worldwide public health concern. It is frequently examined in peripheral smears obtained from overnight sample collection. In cytology smears, microfilariae are rarely detected, despite their considerable incidence. It is rare for a lymph node to appear as a filarial nodule. Furthermore, it is unusual for lymph node fine needle aspiration cytology (FNAC) to reveal microfilariae. We would like to share the instance of a patient who had submental lymph node swelling and incidentally found microfilariae. For 10–15 days, the patient had a 2 x 2 cm enlargement of the submental lymph node along with a complaint of weight loss. Enlarged lymph nodes in the submental area were seen in the USG-neck region. Her condition was tentatively identified as lymph node swelling that was still being assessed. However, microfilariae were unintentionally discovered during the FNAC of the lymph node. When filariasis does not exhibit any clinical symptoms, FNAC can help identify microfilariae in the lymph node.


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1. Pantola C, Kala S, Agarwal A, Khan L: Microfilaria in cytological smears at rare sites coexisting with unusual pathology: A series of seven cases. Trop Parasitol. 2012, 2:61-3. doi:10.4103/2229-5070.97244
2. Sharma J, Chaudhary N, Bordia S: Microfilariae in lymph node aspirate: a case report. J Med Sci Clin Res. 2017, 5:18694-18697. doi:10.18535/jmscr/v5i3.69
3. Sharma A, Sudhamani S, Pandit A, Kiri VM: Microfilariae in lymph node aspirate. Bombay Hospital J. 2012, 54:302.
4. Chauhan K, Agarwal S: Incidental detection of microfilaria in lymph node aspirate: a case report. IJSR. 2012, 2:424-425. doi:10.15373/22778179/DEC2013/129
5. Agrawal VK, Sashindran VK: Lymphatic filariasis in India: problems, challenges and new initiatives. Med J Armed Forces India. 2006, 62:359-62. doi:10.1016/S0377-1237(06)80109-7
6. Pathak B, Maimoon S (November 08, 2022) Incidental Finding of Microfilaria in Lymph Node Cytology: A Case Report. Cureus 14(11): e31275. doi:10.7759/cureus.31275
7. Suthar K, Kashyap R, Mewada B, Suthar H: Filariasis presenting as generalized lymphadenopathy: a rare case report. Int J Med Sci Public Health. 2013, 2:755. doi:10.5455/ijmsph.2013.290420131
8. Gite V, Dhakane M: Incidental microfilaria in cervical lymph node cytology. Apollo Med. 2018, 15:24. doi:10.4103/am.am_34_17
9. Chakrabarti N, Konar K, Mala, Bandyopadhyay A: Incidental detection of microfilaria in cytology: report of three cases. Annals of Clinical Pathology. 2014, 1033. doi:10.47739/2373-9282/1033
10. Gupta D, Gupta P, Jain S, Rahar S: Cytological diagnosis of microfilariae in clinically unsuspected cases: a retrospective review of 12 cases. Cytopathology. 2021, 32:807-12. doi:10.1111/cyt.13035
11. Bharti S, Agarwal NK, Katiyar R, Dwivedi S, Shri M: Cytological diagnosis of microfilaria at unusual sites in clinically unsuspected cases: some rare presentations of filariasis. Trop Doct. 2018, 48:373-5. doi:10.1177/0049475518793630
How to Cite
Nagar, V., Patel, V., & Gor, S. (2024). Incidental Finding of Microfilaria in Submental Lymph Node Cytology: A Rare Case. Tropical Journal of Pathology and Microbiology, 9(4), 40-43. Retrieved from
Case Report