Mucosa-associated lymphoid tissue (MALT) lymphoma of the thyroid: report of a case.
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.
Nakao
A
A
Department of Surgery, Kurashiki Kosai Hospital, Okayama, Japan.
Fujisawa
K
K
Mimura
H
H
Ezawa
K
K
Natsumeda
M
M
Fukuoka
K
K
Isozaki
H
H
Tanaka
N
N
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