title: Papillary thyroid microcarcinoma in a thyroid pyramidal lobe.
abstract: We report an extremely rare case of papillary thyroid microcarcinoma (PTMC) in the thyroid Epub ahead of print pyramidal lobe (TPL). A 48-year-old woman underwent ultrasound-guided fine-needle aspiration for a small thyroid nodule in the right lobe in local clinic, and it revealed a malignant cytology. On preoperative ultrasonography for tumor staging in our hospital, another small suspiciously malignant hypoechoic nodule was detected in the left TPL. Total thyroidectomy and central nodal dissection were performed. Histopathology confirmed PTMCs in the left TPL and both thyroid lobes. Ultrasonography for TPL should be required for complete evaluation of possible multifocality of thyroid malignancy.
authors.affiliation: Departments of General Surgery, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors.forename: Tae Kwun
authors.identifier: 0000-0001-7980-3700
authors.initials: TK
authors.lastname: Ha
authors.affiliation: Departments of Radiology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors.forename: Dong Wook
authors.identifier: 0000-0002-9826-1326
authors.initials: DW
authors.lastname: Kim
authors.affiliation: Departments of General Surgery, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors.forename: Ha Kyoung
authors.identifier: 0000-0002-7610-8590
authors.initials: HK
authors.lastname: Park
authors.affiliation: Departments of Pathology, Busan Paik Hospital, Inje University College of Medicine, Busan, Korea.
authors.forename: Soo Jin
authors.identifier: 0000-0002-9139-701X
authors.initials: SJ
authors.lastname: Jung
keywords: Papillary thyroid microcarcinoma; Pyramidal lobe; Thyroid nodule; Ultrasonography