Ces radiol. 2010, 64(4):266-268

Unusual 67Ga-citrate scintigraphy and head SPECT imaging of the temporal bone fibrous dysplasia in the patient with malignamt melanomaCase report

Jiří Doležal
Oddělení nukleární medicíny FN, Hradec Králové

Aim: To present a rare case report about 33-years-old woman with the positive history malignant melanoma and the unusual pathological uptake of 67Ga-citrate in temporal bone (os petrosum) fibrous dysplasia during restaging 67Ga-citrate whole body scintigraphy and head SPECT.


Material and method. 33-years-old woman with a past history of excision of a malignant melanoma from the right neck underwent the restaging 67Ga-citrate scintigraphy. The double-head gamma camera VariCam (Elscint) with infrared body countouring and the large field of view was used. The gamma camera was fitted with medium-energy, parallel-hole collimators. Images were evaluated by processing system Xpert (Elscint).

Results: The whole body planar scintigraphy detected pathological uptake of 67Ga-citrate in the right temporal cranium. The subsequent head SPECT revealed oval focus of the pathological uptake in the right temporal bone. The SPECT slices and whole body planar scans were evaluated as the suspect isolated metastasis of a malignant melanoma in the right temporal bone without others metastases. The woman underwent MRI and CT, which revealed the fibrous dysplasia of the right temporal bone.

Conclusion: Unusual pathological uptake of 67Ga-citrate in the temporal bone fibrous dysplasia caused positive 67Ga-citrate scintigraphy in a patient with positive history of malignant melanoma.

Keywords: malignant melanoma, fibrous bone dysplasia, 67Ga-citrate, scintigraphy, SPECT

Accepted: November 1, 2010; Published: December 1, 2010  Show citation

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Doležal J. Unusual 67Ga-citrate scintigraphy and head SPECT imaging of the temporal bone fibrous dysplasia in the patient with malignamt melanoma. Ces radiol. 2010;64(4):266-268.
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