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Is extensive histological examination of wide excision specimens necessary following a diagnosis of melanoma?

Sir : In the November 1997 issue of Histopathology, a paper by Shintaku and Honda reports on the identification of oncocytic lesions of salivary glands by antimitochondrial immunohistochemistry. The authors say that, to their knowledge, there have been no reports utilizing anti-mitochondrial antibodies in immunohistochemical investigations on paraffin sections. However, we reported on the same topic in Applied Immunohistochemistry. Clearly, our paper escaped the attention of the authors, but it was recently cited in a paper on the differential diagnosis of granular renal cell tumours.