[A case of orbital MALT lymphoma in which 67Ga scintigraphy was useful for evaluating the radiation therapy response].
A 67-year-old man was hospitalized at our institution complaining with epiphora and exophthalmos on the left side. Magnetic resonance imaging (MRI) showed an ill demarcated retrobulbar mass in the left orbit. 67Ga scintigraphy revealed avid uptake in the left orbital region. The patient was treated with radiation therapy. One month after the radiation therapy, the size of the mass decreased remarkably on MRI. 67Ga planar imaging after treatment showed no uptake, but 67Ga SPECT showed slightly increased uptake in the left orbital region. One year after the radiation therapy, MRI showed residual mass in the left orbital region. Both 67Ga planar imaging and SPECT showed no uptake in the left orbital region. 1.8 years after the radiation therapy, MRI showed the residual mass with no interval change in size. Both 67Ga planar imaging and SPECT showed no uptake in the left orbital region. The patient remains well with no evidence of local recurrence. 67Ga scintigraphy is useful in assessing the response to radiation therapy of MALT lymphoma in this case.
Department of Radiology, Teikya University School of Medicine.
T
T
Takeshita
T
T
Kaminaga
S
S
Furui
T
T
Sugiyama
T
T
Yokokawa
Y
Y
Nemoto
F
F
Tanaka
D000368:Aged; D005710:Gallium Radioisotopes; D006801:Humans; D018442:Lymphoma, B-Cell, Marginal Zone / Q000000981:diagnostic imaging* / Q000532:radiotherapy*; D008297:Male; D009918:Orbital Neoplasms / Q000000981:diagnostic imaging* / Q000532:radiotherapy*; D015899:Tomography, Emission-Computed, Single-Photon
D005710:Gallium Radioisotopes