Granular Cell Tumor of the Gallbladder: A Rare Entity.
- 1Department of Pathology and Cytology, Dubrava University Hospital, Zagreb, Croatia.
- 2Department of Pulmonology, Dubrava University Hospital, Zagreb, Croatia.
- 3Division of Abdominal Surgery, Dubrava University Hospital, Zagreb, Croatia.
Abstract
Background/aim
Granular cell tumor (GCT) is a rare, typically benign neoplasm most likely derived from Schwann cells. GCTs occur in the biliary tract in less than 1% of cases, with the gallbladder being the least common location for this tumor.Case report
We report a case of a 37-year-old female who presented with persistent biliary colic. Histopathological analysis revealed a polypoid lesion in the gallbladder composed of large polygonal cells with abundant, eosinophilic, granular cytoplasm. Immunohistochemical staining showed positivity for S-100, SOX10 and focally positive for CD68 confirming the diagnosis of a benign GCT.Conclusion
GCT of the gallbladder is an exceptionally rare entity, with this representing only the tenth reported case in the literature. These tumors frequently mimic more common conditions such as cholecystitis, often presenting as biliary colic. Despite its rarity, GCT should be included in the differential diagnosis of gallbladder lesions, especially in younger populations.
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BibTeX
@article{stadnik2026granular,
title = {{Granular Cell Tumor of the Gallbladder: A Rare Entity.}},
author = {Anja Stadnik and Arijana Pačić and Karolina Krstanac and Kristina Lalić and Domagoj Vergles},
journal = {Cancer diagnosis \& prognosis},
year = {2026},
month = nov,
doi = {10.21873/cdp.10605},
url = {https://europepmc.org/article/MED/42968930},
note = {CC BY-NC-ND},
}
RIS
TY - JOUR
TI - Granular Cell Tumor of the Gallbladder: A Rare Entity.
AU - Anja Stadnik
AU - Arijana Pačić
AU - Karolina Krstanac
AU - Kristina Lalić
AU - Domagoj Vergles
PY - 2026
DA - 2026/11/01
JO - Cancer diagnosis & prognosis
DO - 10.21873/cdp.10605
UR - https://europepmc.org/article/MED/42968930
AB - Background/aim Granular cell tumor (GCT) is a rare, typically benign neoplasm most likely derived from Schwann cells. GCTs occur in the biliary tract in less than 1% of cases, with the gallbladder being the least common location for this tumor.Case report We report a case of a 37-year-old female who presented with persistent biliary colic. Histopathological analysis revealed a polypoid lesion in the gallbladder composed of large polygonal cells with abundant, eosinophilic, granular cytoplasm. Immunohistochemical staining showed positivity for S-100, SOX10 and focally positive for CD68 confirming the diagnosis of a benign GCT.Conclusion GCT of the gallbladder is an exceptionally rare entity, with this representing only the tenth reported case in the literature. These tumors frequently mimic more common conditions such as cholecystitis, often presenting as biliary colic. Despite its rarity, GCT should be included in the differential diagnosis of gallbladder lesions, especially in younger populations.
SN - 2732-7787
ER -