Figure 16. 111In-Pentetreotide image in a patient with melanoma showing a metastasis in the left frontal lobe and in the left hilium (arrows).

studies will occur in patients with infection and recent surgery; these factors should be considered when requesting the examination.

At present FDG imaging in patients with melanoma is most effectively used in staging patients with a high likelihood of distant metastases (i.e., Stage IIB or III) and in evaluating patients at high risk of recurrence.

Gallium Imaging

Gallium shows high sensitivity for melanoma (80-85% with high dose administrations), but specificity has been lower (typically 60-75%) and imaging of the lungs and brain is ineffective.

However, if PET is not available, then there will be a small group of patients in whom CT or MRI is equivocal and biopsy is difficult and in whom gallium imaging with SPECT may make a contribution to management.


Several groups have now reported sensitivities of up to 75% in patients with melanoma. No attempt has yet been made to test the contribution to patient management, though some preliminary data suggest that uptake may be a predictor

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How To Prevent Skin Cancer

Complete Guide to Preventing Skin Cancer. We all know enough to fear the name, just as we do the words tumor and malignant. But apart from that, most of us know very little at all about cancer, especially skin cancer in itself. If I were to ask you to tell me about skin cancer right now, what would you say? Apart from the fact that its a cancer on the skin, that is.

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