Melanoma metastases to lymph nodes have been analyzed using proton MRS by Lean et al . The ratio of 1.8 to 2.5 ppm (containing lipid, lactate and other metabolites) to choline (3.2 ppm) was significantly higher in excised benign lymph nodes compared to those containing melanoma. Thompson et al.  suggest that "techniques such as in vivo proton MRS hold great promise" for assessment of sentinel nodes in patients with melanoma (p. 147S).
Russell et al.  performed 1D and 2D in vitro proton MRS analysis of thyroid tissue from 53 patients who underwent partial or total thyroidectomy for solitary thyroid nodules. The major differences between normal thyroid tissue and papillary carcinomas were the absence of lipid (CH3 resonates at 0.86 ppm) and the presence of amino acid metabolites (methyl resonances from amino acids resonate at 0.9 ppm) in cancerous tissue. The ratio of the resonance at 1.7 ppm to that at 0.9 ppm was > 1.1 in all the normal thyroid specimens, whereas in all of the thyroid cancers (papillary, medullary and anaplastic) the ratio was < 1.1 and there was no overlap between normal and malignant tissue. With respect to the follicular neoplasms, those which were histologically or clinically clearly malignant all had a ratio of 1.7 ppm to 0.9 ppm < 1.1. This group of authors in a subsequent paper  illustrated the importance of MRSI applied in vitro to the thyroid, demonstrating the chemical heterogeneity of follicular thyroid neoplasms, which are morphologically homogeneous.
 J. Czernin, M.E. Phelps, Positron emission tomography scanning: Current and future applications, Annu. Rev. Med. 53, 89-112 (2002).
 M. Phelps, E. Hoffmann, N. Mullani, M. Ter-Pogossian, Application of annihilation coincidence detection to transaxial reconstruction tomography, J. Nucl. Med. 16, 210-224 (1975).
 M. G. Pomper, Functional and metabolic imaging, in: V.T. de Vita, S. Hellman, S.A. Rosenberg, Cancer Principles & Practice of Oncology 6th Edition, Lippincott Williams & Wilkins, Philadelphia, 2001, p. 679-689.
 K. Kinkel, Y. Lu, M. Both et al., Detection of hepatic metastases from cancers of the gastrointestinal tract by using non-invasive imaging methods (US, CT, MR imaging, PET): A meta-analysis, Radiology 224, 748-756, (2002).
 A. Annovazzi, M. Peeters, A. Maenhoutt, A. Signore, R. Dierckx, C. Van de Wiele, 18-flurodeoxyglucose positron emission tomography in nonendocrine neoplastic disorders of the gastrointestinal tract, Gastroenterology 125, 1235-1245 (2003).
 J.D. Potter, D. Hunter, Colorectal cancer, in: H-O. Adami, D. Hunter, D. Trichopoulos, Textbook of Cancer Epidemiology, Oxford University Press, Oxford, 2002, p. 188-211.
 R.J. Mayer, Gastrointestinal tract cancer, in: E Braunwald, A. Fauci, D.L. Kasper, S.L. Hauser, D.L. Longo, J.L. Jameson, Harrison's Principles of Internal Medicine, 15th Edition, McGraw-Hill, New York, 2001, p. 578-588.
 J.M. Skibber, B.D. Minsky, P.M. Hoff, Cancer of the colon, in: V.T. de Vita, S. Hellman, S.A. Rosenberg, Cancer Principles & Practice of Oncology 6th Edition, Lippincott Williams & Wilkins, Philadelphia, 2001, p. 1216-1271.
 B. Saar, T. Rösch, E.J. Rummeny, Colorectal cancer screening: A challenge for magnetic resonance colonography, Top. Magn. Reson. Imaging 13, 427-434 (2002).
 G.N. Tzimas, D.J. Koumanis, S. Meterissian, Positron emission tomography and colorectal carcinoma: an update, J. Am. Coll. Surg. 198, 645-652 (2004).
 M.E.J. Pijl, A.S. Chaoui, R.L. Wahl, J.A. van Oostayen, Radiology of colorectal cancer, Eur. J. Cancer 38, 887-898 (2002).
 A. Oto, Virtual endoscopy, Eur. J. Radiol. 42, 231-239 (2002).
 P.B. Cotton, V.L. Durkalski, B.C. Pineau, et al., Computed tomographic colonography (virtual colonoscopy) A multicenter comparison with standard colonoscopy for detection of colorectal neoplasia, JAMA 291, 1713-11719 (2004).
 M.S. Karpeh, D.P. Kelsen, J.E. Tepper, Cancer of the stomach, in: V.T. de Vita, S. Hellman, S.A. Rosenberg, Cancer Principles & Practice of Oncology 6th Edition, Lippincott Williams & Wilkins, Philadelphia, 2001, p.1092-1126.
 D.J. Blezek, R.A. Robb, Evaluating virtual endoscopy for clinical use, J. Digital Imaging 103 (Suppl. 1), 51-55 (1997).
 S. Mazzeo, D. Caramella, A. Gennai, et al., Multidetector CT and virtual endoscopy in the evaluation of the esophagus, Abdom. Imaging29, 2-8 (2004).
 M.K. Kalra, M.M. Maher, P.R. Mueller, S. Saini, State-of-the-art imaging of pancreatic neoplasms, Br. J. Radiol. 76, 857-865 (2003).
 N.R. Maisey, A. Webb, G.D. Flux, et al., FDG-PET in the prediction of survival of patients with cancer of the pancreas: a pilot study, Br. J. Cancer 83, 287-293 (2000).
 A.M. Xu, H.Y. Cheng, W.B. Jiang, D. Chen, Y.C. Jia, M.C. Wu, Multi-slice three-dimensional spiral CT cholangiography: a new technique for diagnosis of biliary diseases, Hepatobil. Pancreat. Dis. Int. 1, 595-603 (2002).
 A.E. Li, D.A. Bluemke, Magnetic Resonance Imaging in: V.T. de Vita, S. Hellman, S.A. Rosenberg, Cancer Principles & Practice of Oncology 6th Edition, Lippincott Williams & Wilkins, Philadelphia, 2001, p. 669-679.
 M.R. Arguedas, Screening for hepatocellular carcinoma: why, when, how? Curr.
 S.C.H. Yu, D.T.K. Yeung, N.M.C. So, Imaging features of hepatocellular carcinoma, Clin. Radiol. 59, 145-156 (2004).
 R. Soper, U. Himmelreich, D. Painter, et al., Pathology of hepatocellular carcinoma and its precursors using proton magnetic resonance spectroscopy and a statistical classification strategy,
Pathology 34, 417-422 (2002).
 T. Nishijima, M. Nishina, K. Fujiwara, Measurement of lactate levels in serum and bile using proton nuclear magnetic resonance in patients with hepatobiliary diseases: its utility in detection of malignancies, Jpn. J. Clin. Oncol. 27, 13-17 (1997).
 R.M. Dixon, NMR studies of phospholipid metabolism in hepatic lymphoma, NMR Biomed. 11, 370-379 (1998).
 K. Takahama, Y. Amano, H. Hayashi, M. Ishihara, T. Kumazaki, Detection and characterization of focal liver lesions using superparamagnetic iron oxide-enhanced magnetic resonance imaging: comparison between ferumoxides-enhanced T1-weighted imaging and delayed-phase gadolinium-enhanced T1-weighted imaging, Abdom. Imaging 28, 525-530 (2003).
 G. Brinkmann, U.H. Melchert, L. Emde, et al., In vivo P-31-MR-spectroscopy of focal hepatic lesions. Effectiveness of tumor detection in clinical practice and experimental studies of surface coil characteristics and localization technique, Investig. Radiol. 30, 56-63 (1995).
 I.R. Francis, T.L. Chenevert, B. Gubin, et al., Malignant hepatic tumors: P-31 MR spectroscopy with one-dimensional chemical shift imaging, Radiology 180, 341-344 (1991).
 I.J. Cox, J.D. Bell, C.J. Peden, et al., In vivo and in vitro 31P magnetic resonances spectroscopy of focal hepatic malignancies, NMR Biomed. 5, 114-120 (1992).
 M. Ljungberg, G. Westberg, B. Vikhoff-Baaz, et al., P-31 MRS of liver metastases of neuroendocrine tumors treated with hepatic artery embolisation, MAGMA 15 (Suppl. 1), 130-131 (2002).
 D.J. Meyerhoff, G.S. Karczmar, F. Valone, A. Venook, G. B. Matson, M.W. Weiner, Hepatic cancers and their response to chemoembolization therapy. Quantitative image-guided 31P magnetic resonance spectroscopy, Investig. Radiol. 27, 456-464 (1992).
 A. Schilling, B. Gewiese, G. Berger, et al., Liver tumors: follow-up with P-31 MR spectroscopy after local chemotherapy and chemoembolization, Radiology 182, 887-890 (1992).
 K. Taniguchi, T. Kaminaga, M. Sakon, et al. The change of hepatic energy status after transcatheter arterial embolization (TAE) for hepatocellular carcinoma—a study using 31P.MRS,
Jpn. J. Cancer Chemother. 24, 1632-1634 (1997).
 J.D. Bell, I.J. Cox, J. Sargentoni, et al., A 31P and 1H-NMR investigation in vitro of normal and abnormal human liver, Biochem. Biophys. Acta 1225, 71-77 (1993).
 T.H. Saunders, H.K. Mendes Ribeiro, F.V Gleeson, New techniques for imaging colorectal cancer: the use of MRI, PET and radioimmunoscintigraphy for primary staging and follow-up, Br.
 W. Luboldt, P. Bauerfeind, S. Wildermuth, B. Marincek, M. Fried, J.F. Debatin, Colonic masses: Detection with MR colonography, Radiology 216, 383-388 (2000).
 G. Pappalardo, E. Polettini, F.M. Frattaroli, et al., Magnetic resonance colonography versus conventional colonoscopy for the detection of endoluminal lesions, Gastroenterology 119, 300-304(2000).
 W. Luboldt, M.M. Morrin, MR colonography: status and perspective, Abdom. Imaging 27, 400-409 (2002).
 D.F. Ransohoff, Virtual colonoscopy—what it can do vs. what it will do, JAMA 291, 17721774 (2004).
 J. A. Koutcher, M. Goldsmith, R. Damadian, NMR in cancer. X. A malignancy index to discriminate normal and cancerous tissue, Cancer 41, 174-182 (1978).
 P. Kowalski, P. Skupin, J. Sowier, K.J. Olszewski, NMR relaxation time studies of large bowel neoplasms, Physiol. Chem. Phys. Med. NMR 29, 51-54 (1997).
 C.E. Mountford, G.L. May, P.G. Williams et al., Classification of human tumors by highresolution magnetic resonance spectroscopy, Lancet 1 (8482), 651-653 (1986).
 C.E. Mountford, W.A. MacKinnon, P. Russell, A. Rutter, E.J. Delikatny, Human cancers detected by proton MRS and chemical shift imaging ex vivo, Anticancer Res. 16, 1521-1532 (1996).
 A. Moreno, M. Rey, J.M. Montane, J. Alonso, C. Arus, 1H NMR spectroscopy of colon tumors and normal mucosal biopsies: elevated taurine levels and reduced polyethyleneglycol absorption in tumors may have diagnostic significance, NMR Biomed. 6, 111-118 (1993).
 A. Moreno, C. Arus, Quantitative and qualitative characterization of *H NMR spectra of colon tumors, normal mucosa and their perchloric acid extracts: decreased levels of myoinositol in tumors can be detected in intact biopsies, NMR Biomed. 9, 33-45 (1996).
 J.N. Kasimos, T.E. Merchant, L.W. Gierke, T. Glonek, 31P magnetic resonance spectroscopy of human colon cancer, Cancer Res. 50, 527-532 (1990).
 T.E. Merchant, J.N. Kasimos, P.W. de Graaf, B.D. Minsky, L.W. Gierke, T. Glonek, Phospholipid profiles of human colon cancer using 31P magnetic resonance spectroscopy, Int. J.
Colorectal Dis. 6, 121-126 (1991).
 T.E. Merchant, P.M. Diamantis, G. Lauwers, et al., Characterization of malignant colon tumors with 31P nuclear magnetic resonance phospholipid and phosphatic metabolite profiles,
Cancer 76, 1715-1723 (1995).
 E. Krupnik, K.M. Briere, R.P. Bird, C. Littman, I.C. Smith, *H magnetic resonance spectroscopy evidence that aberrant crypt foci are preneoplastic lesions in the colon, Anticancer Res. 19, 1699-1704 (1999).
 K. Nakagami, T. Uchida, S. Ohwada, et al., Increased choline kinase activity and elevated phosphocholine levels in human colon cancer, Japan. J. Cancer Res. 90, 419-424 (1999).
 T. Motohara, R.C. Semelka, MRI in staging of gastric cancer, Abdom Imaging 27, 376-383 (2002).
 F. Maccioni, Current status of gastrointestinal MRI, Abdom. Imaging27, 358-360 (2002).
 C.W. Mun, J.Y. Cho, W.J. Shin, et al. Ex vivo proton MR spectroscopy ((1) H-MRS) for evaluation of human gastric carcinoma, Magn. Reson. Imaging 22, 861-870 (2004).
 U. R. Dave, A.D. Williams, J.A. Wilson et al., Esophageal cancer staging with endoscopic MR imaging: pilot study, Radiology 230, 281-286 (2004).
 A. Giovognoni, G. Valeri, C. Ferrara, MRI of esophageal cancer, Abdom. Imaging 27, 361366 (2002).
 S.T. Doran, G.L. Falk, R.L. Somorjai, et al., Pathology of Barrett's esophagus by proton magnetic resonance spectroscopy and a statistical classification strategy, Am. J. Surg. 185, 232238 (2003).
 T.E. Merchant, P.W. de Graaf, B.D. Minsky, H. Obertop, T. Glonek, Esophageal cancer phospholipid characterization by 31P NMR, NMR Biomed. 6, 187-193 (1993).
 T.E. Merchant, B.D. Minsky, G.Y. Lauwers, P.M. Diamantis, T. Haida, T. Glonek, Esophageal cancer phospholipids correlated with histopathologic findings: a 31P NMR study, NMR Biomed. 12, 184-188 (1999).
 Y. Tanizawa, T. Nakagohri, M. Konishi, et al., Virtual pancreatoscopy of pancreatic cancer,
Hepato-Gastroenterol. 50, 559-562 (2003).
 O. Kaplan, T. Kushnir, N. Askenazy, T. Knubovets, G. Navon, Role of nuclear magnetic resonance spectroscopy (MRS) in cancer diagnosis and treatment: 31P, 23Na and 1H MRS studies of three models of pancreatic cancer, Cancer Res. 57, 1452-1459 (1997).
 C.L. Lean, R. Bourne, J.F. Thompson, et al., Rapid detection of metastatic melanoma in lymph nodes using proton magnetic resonance spectroscopy of fine needle aspiration biopsy specimens, Melanoma Res. 13, 259-261 (2003).
 J.F. Thompson, J.R. Stretch, R.F. Uren, V.S. Ka, R.A. Scolyer, Sentinel node biopsy for melanoma: Where have we been and where are we going? Ann. Surg. Oncol. 11 (Suppl.), 147S-151S (2004).
 P. Russell, C.L. Lean, L. Delbridge, G.L. May, S. Dowd, C.E. Mountford, Proton magnetic resonance and human thyroid neoplasia I: Discrimination between benign and malignant neoplasms, Am. J. Med. 96, 383-388 (1994).
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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.