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The Korean Journal of Pathology 2010;44(4): 448-452.
doi: https://doi.org/10.4132/KoreanJPathol.2010.44.4.448
Fine Needle Aspiration Cytology of Gastric Glomus Tumor: A Case Report.
Dong Geun Lee, Kyu Yun Jang, Myoung Ja Chung, Woo Sung Moon, Myoung Jae Kang, Ho Sung Park
Department of Pathology, Institute for Medical Science, Research Institute of Clinical Medicine, Chonbuk National University Medical School, Jeonju, Korea. hspark@chonbuk.ac.kr
Glomus tumors of the stomach are rare and are usually found as a solitary, intramural lesion. Here, we report a case of a gastric glomus tumor in a 60-year-old woman diagnosed by endoscopic ultrasound-guided fine-needle aspiration cytology. Endoscopic ultrasound revealed a 4 x 3 cm-sized, round, isoechoic mass at the fourth layer of the gastric wall. Smears revealed cohesive clusters of small, uniform, round to polygonal cells with scant cytoplasm and round, hyperchromatic nuclei with homogeneous chromatin. Immunocytochemistry by liquid-based cytology was positive for smooth muscle actin. The cytologic diagnosis of a glomus tumor was confirmed by a specimen from the laparoscopic resection. Although the cytologic features of glomus tumors are quite distinctive, an immunocytochemical stain from a liquid-based cytology preparation can further help to ascertain the diagnosis.
Key Words: Stomach neoplasms; Glomus tumor; Endosonography; Biopsy, fine-needle; Cytology