title: Radiologic and Pathologic Findings of a Follicular Variant of Papillary Thyroid Cancer with Extensive Stromal Fat: A Case Report.
abstract: Thyroid cancer may have small adipose structures detected by microscopy. However, there are no reports of thyroid cancer with gross fat evaluated by radiological methods. We reported a case of a 58-year-old woman with a fat containing thyroid mass. The mass was hyperechoic and ovoid in shape with a smooth margin on ultrasonography. On computed tomography, the mass had markedly low attenuation suggestive of fat, and fine reticular and thick septa-like structures. The patient underwent a right lobectomy. The mass was finally diagnosed as a follicular variant of papillary thyroid cancer with massive stromal fat.
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Jin Woo
authors.initials: JW
authors.lastname: Choi
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Tae Hyung
authors.initials: TH
authors.lastname: Kim
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Hong Gee
authors.initials: HG
authors.lastname: Roh
authors.affiliation: Department of Radiology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Won-Jin
authors.initials: WJ
authors.lastname: Moon
authors.affiliation: Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Sang Hwa
authors.initials: SH
authors.lastname: Lee
authors.affiliation: Department of Pathology, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Tae Sook
authors.initials: TS
authors.lastname: Hwang
authors.affiliation: Department of Surgery, Konkuk University Medical Center, Konkuk University School of Medicine, Seoul 05030, Korea.
authors.forename: Kyoung Sik
authors.initials: KS
authors.lastname: Park
mesh_terms: D002277:Carcinoma / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D002291:Carcinoma, Papillary; D005091:Exons; D005260:Female; D020558:GTP Phosphohydrolases / Q000235:genetics; D006801:Humans; D007150:Immunohistochemistry; D008565:Membrane Proteins / Q000235:genetics; D008875:Middle Aged; D009154:Mutation; D000077273:Thyroid Cancer, Papillary; D013964:Thyroid Neoplasms / Q000175:diagnosis* / Q000000981:diagnostic imaging / Q000473:pathology; D014057:Tomography, X-Ray Computed; D014463:Ultrasonography
chemical_list: D008565:Membrane Proteins; D020558:GTP Phosphohydrolases; C579846:NRAS protein, human
keywords: Computed tomography; Fat; Follicular variant; Papillary thyroid cancer; RAS; Ultrasound