Roger K. Moreira, M.D.

  1. Pathologist
  1. Nasir A, Lehrke HD, Mounajjed T, Said S, Zhang L, Yasir S, Shah SS, Chandan VS, Smyrk TC, Moreira RK, Boland Froemming JM, Herrera Hernandez LP, Wu TT, Graham RP. Albumin In Situ Hybridization Can Be Positive in Adenocarcinomas and Other Tumors From Diverse Sites. Am J Clin Pathol. 2019 Jul 5; 152 (2):190-199
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  2. Clark I, Shah SS, Moreira R, Graham RP, Wu TT, Torbenson MS, Chandan V. A subset of well-differentiated hepatocellular carcinomas are Arginase-1 negative. Hum Pathol. 2017 Nov; 69:90-95 Epub 2017 Sept 29
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  3. Deniz K, Moreira RK, Yeh MM, Ferrell LD. Steatohepatitis-like Changes in Focal Nodular Hyperplasia, A Finding to Distinguish From Steatohepatitic Variant of Hepatocellular Carcinoma. Am J Surg Pathol. 2017 Feb; 41: (2)277-281.
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  4. Margolskee E, Bao F, de Gonzalez AK, Moreira RK, Lagana S, Sireci AN, Sepulveda AR, Remotti H, Lefkowitch JH, Salomao M. Hepatocellular adenoma classification: a comparative evaluation of immunohistochemistry and targeted mutational analysis. Diagn Pathol. 2016 Mar 9; 11:27 Epub 2016 Mar 09
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  5. Tieu C, Moreira RK, Song LM, Majumder S, Papadakis KA, Hogan MC. A case report of sevelamer-associated recto-sigmoid ulcers. BMC Gastroenterol. 2016 Feb 24; 16:20
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  6. Hart PA, Romano RC, Moreira RK, Ravi K, Sweetser S. Esophagitis Dissecans Superficialis: Clinical, Endoscopic, and Histologic Features. Dig Dis Sci. 2015 Jul; 60 (7):2049-57 Epub 2015 Feb 21
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  7. Lagana S, Hsiao S, Bao F, Sepulveda A, Moreira R, Lefkowitch J, Remotti H. HepPar-1 and Arginase-1 Immunohistochemistry in Adenocarcinoma of the Small Intestine and Ampullary Region. Arch Pathol Lab Med. 2015 Jun; 139: (6)791-5.
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  8. Lagana SM, Salomao M, Remotti HE, Knisely AS, Moreira RK. Bile salt export pump: a sensitive and specific immunohistochemical marker of hepatocellular carcinoma. Histopathology. 2015 Mar; 66 (4):598-602 Epub 2015 Jan 23
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  9. Mendes BC, Oderich GS, Macedo TA, Moreira RK. Ischemic liver lesions mimicking neoplasm in a patient with severe chronic mesenteric ischemia. Journal of Vascular Surgery Cases. 2015; 1(2):144-7.
  10. Salomao M, Verna EC, Lefkowitch JH, Moreira RK. Histopathologic distinction between fibrosing cholestatic hepatitis C and biliary obstruction. Am J Surg Pathol. 2013 Dec; 37(12):1837-44.
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  11. Lagana SM, Moreira RK, Remotti HE, Bao F. Glutamine synthetase, heat shock protein-70, and glypican-3 in intrahepatic cholangiocarcinoma and tumors metastatic to liver. Appl Immunohistochem Mol Morphol. 2013 May; 21(3):254-7.
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  12. Lagana SM, Salomao M, Bao F, Moreira RK, Lefkowitch JH, Remotti HE. Utility of an immunohistochemical panel consisting of glypican-3, heat-shock protein-70, and glutamine synthetase in the distinction of low-grade hepatocellular carcinoma from hepatocellular adenoma. Appl Immunohistochem Mol Morphol. 2013 Mar; 21: (2)170-6.
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  13. Verna EC, Abdelmessih R, Salomao MA, Lefkowitch J, Moreira RK, Brown RS Jr. Cholestatic hepatitis C following liver transplantation: an outcome-based histological definition, clinical predictors, and prognosis. Liver Transpl. 2013 Jan; 19 (1):78-88
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  14. Moreira RK, Salomao M, Verna EC, Brown RS Jr, Lefkowitch JH. The Hepatitis Aggressiveness Score (HAS): a novel classification system for post-liver transplantation recurrent hepatitis C. Am J Surg Pathol. 2013 Jan; 37 (1):104-13
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  15. Moreira RK, Cabral R, Cowles RA, Lobritto SJ. Biliary atresia: a multidisciplinary approach to diagnosis and management. Arch Pathol Lab Med. 2012 Jul; 136(7):746-60.
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  16. Ovchinsky N, Moreira RK, Lefkowitch JH, Lavine JE. Liver biopsy in modern clinical practice: a pediatric point-of-view. Adv Anat Pathol. 2012 Jul; 19(4):250-62.
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  17. Martin DR, Lauenstein T, Kalb B, Lurie C, Kitajima H, Sharma P, Salman K, Moreira R, Farris AB 3rd, Spivey J, Martinez E, Hanish S, Adsay V. Liver MRI and histological correlates in chronic liver disease on multiphase gadolinium-enhanced 3D gradient echo imaging. J Magn Reson Imaging 7 [Epub ahead of print]. 2012 May 7.
  18. Salomao M, Remotti H, Vaughan R, Siegel AB, Lefkowitch JH, Moreira RK. The steatohepatitic variant of hepatocellular carcinoma and its association with underlying steatohepatitis. Hum Pathol. 2012 May; 43 (5):737-46 Epub 2011 Oct 20
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  19. Longman RS, Moreira RK, Littman DR, Green PH, Sethi A. A rare intestinal infection with systemic effects. Gastroenterol Hepatol (N Y). 2012 Jan; 8(1):60-3.
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  20. Verna EC, Lefkowitch JH, Moreira RK, Brown RS. Clinical predictors in cholestatic hepatitis C. Liver Transplantation Accepted for publication. 2012.
  21. Arnold C, Moreira RK, Montgomery EA. A Comprehensive Study of Whipple Disease: Diagnostic Clues from Unusual Presentations. Am J Surg Pathol Accepted for publication. 2012.
  22. Lagana SM, Moreira RK, Bao F, Remotti H. Utility of an immunohistochemical panel consisting of glypican-3, heat shock protein-70, and glutamine synthetase in the distinction of low-grade hepatocellular carcinoma from hepatocellular adenoma. Appl Immunohistochem Mol Morph Accepted for Publication. 2012.
  23. Lagana SM, Moreira RK, Bao F, Remotti H. Glutamine synthetase, heat-shock protein 70 and glypican-3 in intrahepatic cholangiocarcinoma and tumors metastatic to liver. Appl Immunohistochem Mol Morph Accepted for Publication. 2012.
  24. Moreira RK. Recurrent hepatitis C and acute allograft rejection: clinicopathologic features with emphasis on the differential diagnosis between these entities. Adv Anat Pathol. 2011 Sep; 18(5):393-405.
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  25. Moreira RK, Chopp W, Washington MK. The concept of hepatic artery-bile duct parallelism in the diagnosis of ductopenia in liver biopsy samples. Am J Surg Pathol. 2011 Mar; 35(3):392-403.
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  26. Lagana SM, Moreira RK, Lefkowitch JH. Hepatic granulomas: pathogenesis and differential diagnosis. Clin Liver Dis. 2010 Nov; 14(4):605-17.
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  27. Moreira RK, Revetta F, Koehler E, Washington MK. Diagnostic utility of IgG and IgM immunohistochemistry in autoimmune liver disease. World J Gastroenterol. 2010 Jan 28; 16(4):453-7.
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  28. Moreira RK, Washington MK. Pathology of gastrointestinal neuroendocrine tumors: an update. Surg Pathol Clin. 2010; 3(2):327-47.
  29. Moreira RK, Norton C, Rosado FN, Cohen C, Nolte F. Histopathologically documented gastrointestinal cytomegalovirus infection in immunosuppressed patients: Clinicopathologic analysis with serum quantitative PCR correlation. Int J Med Med Sci. 2010; 2(3):49-59.
  30. Lauenstein TC, Martin DR, Sarmiento JM, Kalb B, Moreira R, Carew J, Salman K, Adsay V. Pancreatic adenocarcinoma tumor grade determination using contrast-enhanced magnetic resonance imaging. Pancreas. 2010 Jan; 39(1):71-5.
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  31. Larsen CP, Moreira RK, Hennigar RA, Bijol V. Kidney biopsy findings in a patient with fever, bilateral pulmonary infiltrates, and acute renal failure. Am J Kidney Dis. 2008 Mar; 51(3):524-9.
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  32. Rouphael NG, Talati NJ, Vaughan C, Cunningham K, Moreira R, Gould C. Infections associated with haemophagocytic syndrome. Lancet Infect Dis. 2007 Dec; 7(12):814-22.
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  33. Moreira RK. Hepatic stellate cells and liver fibrosis. Arch Pathol Lab Med. 2007 Nov; 131(11):1728-34.
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  34. Lauenstein TC, Salman K, Morreira R, Tata S, Tudorascu D, Baramidze G, Singh-Parker S, Martin DR. Nephrogenic systemic fibrosis: center case review. J Magn Reson Imaging. 2007 Nov; 26(5):1198-203.
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  35. Lauenstein TC, Salman K, Morreira R, Heffron T, Spivey JR, Martinez E, Sharma P, Martin DR. Gadolinium-enhanced MRI for tumor surveillance before liver transplantation: center-based experience. AJR Am J Roentgenol. 2007 Sep; 189(3):663-70.
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  36. Moreira RK, Hunter SB, Nolte FS. Central nervous system toxoplasmosis. Resident and Staff Physician Journal. 2006; 45(9):37-8.
  37. Maciel AC, Cerski CT, Moreira RK, Resende VL, Zanotelli ML, Matiotti SB. Hepatocellular carcinoma in patients undergoing orthotopic liver transplantation: radiological findings with anatomopathological correlation in Brazil. Arq Gastroenterol. 2006 Jan-Mar; 43(1):24-9. Epub 2006 May 08.
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  38. Azevedo S, Moreira RK, Castro RCL. Primary thyroid lymphoma: case report and review of literature. Arq Bras Endocrinol Metab. 2004; 48:414-18.
  39. Schestatsky SS, Moreira RK, Schmidt AP, Michalczuk MT. Morphological and functional abnormalities in patients with obscessive-compulsive disorder: evaluation by imaging techniques - review article. Psychiatry Journal of Rio Grande do Sul. 2002; 24(3):73-8.
  40. Peres RM, Sanseverino MT, Guimaraes JL, Coser V, Giuliani L, Moreira RK, Ornsten T, Schuler-Faccini L. Assessment of fetal risk associated with exposure to cancer chemotherapy during pregnancy: a multicenter study. Braz J Med Biol Res. 2001 Dec; 34(12):1551-9.
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  41. Moreira RK, Furtado APA, Genro CH, Pitrez LH, Abreu M, Comiran C, Koppe D, Marconato MC, Zignani J. Giant pulmonary hydatid cyst — a case report. Radiol Bras. 2001; 34(1):175-6.
  42. Furtado APA, Genro CH, Pitrez LH, Abreu M, Comiran C, Moreira RK, Koppe D, Marconato MC, Zignani J. Severe pulmonary fibrosis: an uncommon finding in systemic lupus erythematosus : a case report. Radiol Bras. 2001; 34(1):59-61.
  43. Perez RM, Moreira RK, Moser C, Berwanger CGW, Sanseverino MT, Schuler-Faccini L. Fetal hazards associated with use of benzodiazepines during pregnancy: a review. J Bras Psiquiatr 50(5/. 2001; 6):181-188.
  44. Perez RM, Sanseverino TV, Giuliani L, Moreira RK, Schiller-Faccini L. Assessment of teratogenic risk associated with the use of fenproporex during gestation. Gen Mol Biol. 1999; 22(3):557-64.