Scintigraphic findings of MALT lymphoma of the thyroid.
Mucosa-associated lymphoid tissue (MALT) lymphoma has been established as a distinct entity among non-Hodgkin's lymphomas, and the most common primary site is the stomach. We describe scintigraphic findings in a patient with MALT lymphoma of the thyroid. A 71-year-old woman with Hashimoto's thyroiditis suffered from rapid cervical swelling, and ultrasonography and CT revealed a thyroid nodule. The nodule showed accumulation of 99mTc pertechnetate comparable to the surrounding thyroid tissue, mimicking a benign nodule. Both 67Ga and 201Tl imaging visualized the lesion as an increased uptake area. After radiotherapy, abnormally increased uptake disappeared on 67Ga images, which predicted a favorable outcome. MALT lymphoma of the thyroid may be visualized as a warm nodule on 99mTc pertechnetate scintigraphy.
Department of Radiology, Saitama Medical Center, Saitama Medical School, Kawagoe, Japan. norihnd@saitama-med.ac.jp
Norinari
N
Honda
Kikuo
K
Machida
Yusuke
Y
Inoue
Makoto
M
Hosono
Takeo
T
Takahashi
Akio
A
Kashimada
Hisato
H
Osada
Osamu
O
Murata
Masahide
M
Ohmichi
Wataru
W
Watanabe
Takemichi
T
Okada
Shinji
S
Itoyama
D000368:Aged; D002951:Citrates; D005260:Female; D005708:Gallium; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy; D010173:Palpation; D011859:Radiography; D011877:Radionuclide Imaging; D019275:Radiopharmaceuticals; D013670:Sodium Pertechnetate Tc 99m; D013793:Thallium; D013964:Thyroid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology / Q000532:radiotherapy; D013967:Thyroiditis, Autoimmune / Q000000981:diagnostic imaging; D014463:Ultrasonography
D002951:Citrates; D019275:Radiopharmaceuticals; C027549:thallium chloride; D013670:Sodium Pertechnetate Tc 99m; D013793:Thallium; D005708:Gallium; C103850:gallium citrate