title: Primary gastric extra-uterine endometrial stromal sarcoma.
abstract: Endometrial stromal sarcoma (ESS) is an uncommon uterine neoplasm, but its occurrence as an extra-uterine primary (EESS) is exceedingly unusual, and the fine-needle aspiration (FNA) cytopathology of EESS is rarely described. We hereby present 2 women with primary gastric EESS whereby the FNA cytopathology of this rare entity showed a population of cytologically monotonous oval-spindle shaped cells. This cytopathology is correlated with the subsequent histopathology. EESS is another, albeit rare, diagnostic consideration along with gastrointestinal stromal tumor, schwannoma, glomus tumor, and leiomyoma of cytologically bland neoplasms of the stomach that can be encountered using endoscopic ultrasound-guided FNA biopsy.
authors.affiliation: Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH.
authors.forename: Ming
authors.initials: M
authors.lastname: Jin
authors.affiliation: Robert J Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH.
authors.forename: Jordan P
authors.initials: JP
authors.lastname: Reynolds
authors.affiliation: Robert J Tomsich Pathology and Laboratory Medicine Institute, Cleveland Clinic, Cleveland, OH.
authors.forename: Shelley I
authors.initials: SI
authors.lastname: Odronic
authors.affiliation: Department of Pathology, The Ohio State University Wexner Medical Center, Columbus, OH. Electronic address: paul.wakely@osumc.edu.
authors.forename: Paul E
authors.initials: PE
authors.lastname: Wakely
mesh_terms: D000328:Adult; D044963:Biopsy, Fine-Needle; D016889:Endometrial Neoplasms / Q000473:pathology*; D036821:Endometrial Stromal Tumors / Q000473:pathology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D018203:Sarcoma, Endometrial Stromal / Q000473:pathology*; D013274:Stomach Neoplasms / Q000473:pathology*
keywords: Endometrial stromal sarcoma; Extra-uterine; Fine-needle; Gastric; Low-grade