Hepatic non-caseating granulomas mimicking malignancy: a diagnostic dilemma of mixed infection
DOI:
https://doi.org/10.18203/2320-6012.ijrms20261719Keywords:
Hepatic granuloma, Malignancy mimic, Eosinophilia, Mixed infection, Parasitic infection, Multidisciplinary evaluationAbstract
Hepatic granulomas present a diagnostic challenge due to their diverse etiologies, including infections, autoimmune disorders, and malignancies. In endemic regions, lesions with lymphadenopathy and metabolic activity on imaging often raise suspicion of malignancy or tuberculosis. We report a case of a 54-year-old female presenting with significant weight loss and multiple hepatic lesions with mesenteric lymphadenopathy, initially suggestive of malignancy. Histopathology revealed non-caseating granulomas, while microbiological investigations were negative. A multidisciplinary panel evaluation highlighted peripheral eosinophilia as a key clue, raising suspicion of a parasitic or mixed infectious etiology. Empirical antiparasitic therapy resulted in rapid resolution of hepatic lesions and normalization of eosinophil counts. This case emphasizes the importance of considering infections as malignancy mimics and highlights the role of clinical acumen and multidisciplinary evaluation in endemic settings.
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References
Lamps LW. Hepatic granulomas: A review with emphasis on infectious causes. Arch Pathol Lab Med. 2015;139(7):867-75. DOI: https://doi.org/10.5858/arpa.2014-0123-RA
Gaspar R, Andrade P, Silva M, Armando P, Joanne L, Fatima C, et al. Hepatic granulomas: A 17-year single tertiary centre experience. Histopathology. 2018;73(2):240-6. DOI: https://doi.org/10.1111/his.13521
Gazzinelli-Guimaraes PH, Katrin DMB, Amali ES. Eosinophils as modulators of host defense during parasitic, fungal, bacterial, and viral infections. J Leukoc Biol. 2024;116(6):1301-23. DOI: https://doi.org/10.1093/jleuko/qiae173
Ke Y, Jiang Y, Yuan Y, et al. Eosinophilic gastrointestinal diseases causing hepatic involvement: A case report and literature review. BMC Geriatr. 2024;24:945. DOI: https://doi.org/10.1186/s12877-024-05541-w
Weinberg EM, Aghayeva S, Reddy KR. Hepatic sarcoidosis-A review. Hepatology. 2025;NA.
Şamdanci E, Şahin N, Dağli AF. Fascioliasis: A rare parasitic infection mimicking tumor in the liver. Turk Patoloji Derg. 2019;35(1):58-60.
Hotez PJ, Wilkins PP. Toxocariasis: America’s most common neglected infection of poverty and a helminthiasis of global importance? PLoS Negl Trop Dis. 2009;3(3):e400. DOI: https://doi.org/10.1371/journal.pntd.0000400
Despommier D. Toxocariasis: Clinical aspects, epidemiology, medical ecology, and molecular aspects. Clin Microbiol Rev. 2003;16(2):265-72. DOI: https://doi.org/10.1128/CMR.16.2.265-272.2003
Mas-Coma S, Bargues MD, Valero MA. Fascioliasis and other plant-borne trematode zoonoses. Int J Parasitol. 2005;35(11-12):1255-78. DOI: https://doi.org/10.1016/j.ijpara.2005.07.010
Pohnan R, Ryska M, Hytych V, Radek M, Petr H, Jiri P. Echinococcosis mimicking liver malignancy: A case report. Int J Surg Case Rep. 2017;36:55-8. DOI: https://doi.org/10.1016/j.ijscr.2017.04.032
Wei H, Ma Y, Shi Y, Erming C, Shiran S, Chidan W, et al. Eosinophilic liver abscess mimicking intrahepatic malignancy on PET-CT: A case report. Diagnostics (Basel). 2025;15(23):3057. DOI: https://doi.org/10.3390/diagnostics15233057
Le KL, Tran MQ, Pham TN. Hepatic eosinophilic pseudotumor due to Fasciola hepatica infection mimicking intrahepatic cholangiocarcinoma. World J Hepatol. 2025;17(1):101664. DOI: https://doi.org/10.4254/wjh.v17.i1.101664
Uchida Y, Yokoyama K, Higashi T, Takanori K, Hiromi F, Ryo Y, et al. Eosinophilic granuloma of the liver mimicking metastatic liver tumor. Intern Med. 2022;61(10):1511-7. DOI: https://doi.org/10.2169/internalmedicine.8438-21
Lara-Cano R, Castañeda-Méndez PF, Uribe-Esquivel M, Barbero-Becerra VJ. Hepatic schistosomiasis as a determining factor in the development of hepatic granulomas and liver fibrosis: A review of the current literature. Pathog Glob Health. 2024;118(7-8):529-37. DOI: https://doi.org/10.1080/20477724.2024.2400033