title: Mucosa-associated lymphoid tissue (MALT) lymphoma of the thyroid: report of a case.
abstract: The patient was 59-year-old Japanese woman who presented with a neck swelling. Ultrasonography and computed tomography demonstrated a round tumor in the thyroid right lobe measuring 2.5 x 1.5 cm in size. A right hemithyroidectomy with lymph node dissection was performed. Histopathological findings demonstrated low-grade B cell lymphoma of the mucosa-associated lymphoid tissue (MALT) associated papillary microcarcinoma. A previous report showed an excellent prognosis of MALT lymphoma of the thyroid without capsular invasion or lymph node involvement. We also describe the concept of MALT lymphoma as a primary lesion in which lymphoid tissue is not present in the normal state.
authors.affiliation: Department of Surgery, Kurashiki Kosai Hospital, Okayama, Japan.
authors.forename: A
authors.initials: A
authors.lastname: Nakao
authors.forename: K
authors.initials: K
authors.lastname: Fujisawa
authors.forename: H
authors.initials: H
authors.lastname: Mimura
authors.forename: K
authors.initials: K
authors.lastname: Ezawa
authors.forename: M
authors.initials: M
authors.lastname: Natsumeda
authors.forename: K
authors.initials: K
authors.lastname: Fukuoka
authors.forename: H
authors.initials: H
authors.lastname: Isozaki
authors.forename: N
authors.initials: N
authors.lastname: Tanaka
mesh_terms: D002291:Carcinoma, Papillary / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D008875:Middle Aged; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology*; D014057:Tomography, X-Ray Computed