Research Topics
| Jason T LewisSummaryAffiliation: Mayo Clinic Country: USA Publications
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Publications
Low-grade sinonasal sarcoma with neural and myogenic features: a clinicopathologic analysis of 28 casesJason T Lewis
Department of Laboratory Medicine, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 36:517-25. 2012..On the basis of the locally aggressive nature of this lesion we believe it is best considered a low-grade sarcoma and suggest the term low-grade sinonasal sarcoma with neural and myogenic features...
Prevalence and risk factors for gallbladder neoplasia in patients with primary sclerosing cholangitis: evidence for a metaplasia-dysplasia-carcinoma sequenceJason T Lewis
Division of Anatomic Pathology, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 31:907-13. 2007..The strong correlation between gallbladder dysplasia/adenocarcinoma and bile duct dysplasia/CC supports the concept of a neoplastic "field effect" along the intrahepatic and extrahepatic biliary tract in PSC...- An analysis of breast cancer risk in women with single, multiple, and atypical papillomaJason T Lewis
Division of Anatomic Pathology, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 30:665-72. 2006..The presence of papilloma in, or associated with, atypia does not modify the risk connotation of ADH/ALH overall. MP constitutes a proliferative breast disease subset having unique clinical and biologic behavior... - Crystal-storing histiocytosis due to massive accumulation of charcot-leyden crystals: a unique association producing colonic polyposis in a 78-year-old woman with eosinophilic colitisJason T Lewis
Division of Anatomic Pathology, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 31:481-5. 2007..This is the first reported case of crystal-storing histiocytosis produced by massive accumulation of Charcot-Leyden crystals in eosinophilic colitis... - Muscularis mucosae duplication and the musculo-fibrous anomaly in endoscopic mucosal resections for barrett esophagus: implications for staging of adenocarcinomaJason T Lewis
Division of Anatomic Pathology, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 32:566-71. 2008.... 
Significance of neoplastic involvement of margins obtained by endoscopic mucosal resection in Barrett's esophagusGanapathy A Prasad
Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Am J Gastroenterol 102:2380-6. 2007..The aim of this study was to assess the accuracy of tumor staging by EMR using esophagectomy as the standard...- Depth of submucosal invasion does not predict lymph node metastasis and survival of patients with esophageal carcinomaRami J Badreddine
Barrett s Esophagus Unit, Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, Minnesota, USA
Clin Gastroenterol Hepatol 8:248-53. 2010..We evaluated the impact of depth of submucosal invasion on the presence of metastatic lymphadenopathy and survival in patients with esophageal adenocarcinoma... - Precancerous bile duct pathology in end-stage primary sclerosing cholangitis, with and without cholangiocarcinomaJason T Lewis
Division of Anatomic Pathology, Department of Pathology, DeKalb Medical Center, Decatur, GA 30033, USA
Am J Surg Pathol 34:27-34. 2010..Dysplasia, however, is generally confined to large and septal-size bile ducts and its presence may not be recognized unless multiple sections specifically targeted to the biliary tree are examined... - Distribution of body fat and its influence on esophageal inflammation and dysplasia in patients with Barrett's esophagusEric M Nelsen
Division of Internal Medicine, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN 55905, USA
Clin Gastroenterol Hepatol 10:728-34; quiz e61-2. 2012..This association might be mediated by mechanical and endocrine mechanisms. We investigated the distribution of fat in subjects with BE and its association with esophageal inflammation and dysplasia... - Outcomes of T1b esophageal adenocarcinoma patientsJianmin Tian
Barrett s Esophagus Unit, Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota, USA
Gastrointest Endosc 74:1201-6. 2011..Endoscopic management often differs based on the risk of metastasis. There is limited information on the difference in outcomes for T1b-EAC with and without esophagectomy... - Frozen section analysis of esophageal endoscopic mucosal resection specimens in the real-time management of Barrett's esophagusGanapathy A Prasad
Division of Gastroenterology and Hepatology, 200 First Street SW, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
Clin Gastroenterol Hepatol 4:173-8. 2006..This allows physicians to make decisions regarding further therapy if margins are involved or decrease the use of EMR for histologically benign-appearing lesions... - Breast cancer risk in women with radial scars in benign breast biopsiesJena C Berg
Department of Laboratory Medicine and Pathology, Division of Anatomic Pathology, Mayo Clinic, 200 First Street SW, Rochester, MN 55905, USA
Breast Cancer Res Treat 108:167-74. 2008..We studied the relative risk of radial scar lesions in a large cohort of patients with benign breast disease (BBD)... - IgG4+ plasma cell infiltrates in liver explants with primary sclerosing cholangitisLizhi Zhang
Department of Laboratory Medicine, Mayo Clinic, Rochester, MN 55905, USA
Am J Surg Pathol 34:88-94. 2010..PSC with tissue IgG4 positivity has a more aggressive clinical course manifested by shorter time to transplant and a higher likelihood of recurrence than IgG4 negative PSC... - Observer variability in the histologic diagnosis of microscopic colitisDavid Limsui
Division of Gastroenterology and Hepatology, Miles and Shirley Fiterman Center for Digestive Diseases, Mayo Clinic, Rochester, Minnesota, USA
Inflamm Bowel Dis 15:35-8. 2009..There has been no investigation of the reproducibility of the histologic diagnosis of microscopic colitis. Our aim was to evaluate interobserver and intraobserver variation in this diagnosis... - The International Prognostic Index predicts outcome after histological transformation of low-grade non-Hodgkin lymphomaIvana N M Micallef
Divison of Hematology, Department of Internal Medicine, Mayo Clinic College of Medicine, 200 First Street SW, Rochester, MN 55905, USA
Leuk Lymphoma 47:1794-9. 2006..In conclusion, tIPI at the time of histological transformation is an important predictor of OS. A time to transformation > 4 years from diagnosis is associated with better OS... - Predictors of recurrent esophageal food impaction: a case-control studyGanapathy A Prasad
Division of Gastroenterology and Hepatology, Mayo Clinic College of Medicine, Rochester, MN 55905, USA
J Clin Gastroenterol 42:771-5. 2008..Knowledge of factors predisposing to recurrent FI may enable preventive measures to minimize the risk of recurrence... - Diagnostic performance of two confocal endomicroscopy systems in detecting Barrett's dysplasia: a pilot study using a novel bioprobe in ex vivo tissueEmmanuel C Gorospe
Barrett s Esophagus Unit, Mayo Clinic, Rochester, Minnesota 55905, USA
Gastrointest Endosc 76:933-8. 2012..The diagnostic performance of these 2 systems has not been directly compared... - Angiogenesis and CD34 expression as a predictor of recurrence in oral squamous cell carcinomaDeepak Kademani
Mayo Clinic, College of Medicine, Rochester, MN 55905, USA
J Oral Maxillofac Surg 67:1800-5. 2009..The identification of prognostic markers of early lymph node involvement in OSCC could allow for the use of more targeted biologic therapies for patients with early-stage tumors... - Analysis of intratumoral heterogeneity and amplification status in breast carcinomas with equivocal (2+) HER-2 immunostainingJason T Lewis
Division of Anatomic Pathology, Department of Laboratory Medicine and Pathology, Mayo Clinic, Rochester, MN, USA
Am J Clin Pathol 124:273-81. 2005..In the nonamplified cases, 17 (94%) showed no amplification in repeated FISH. Significant intratumoral heterogeneity and minimal (low-level) HER-2 amplification account for many breast cancers with 2+ HER-2 protein expression... - Glycogen pseudoground glass change in hepatocytesJoshua Wisell
Department of Pathology, The Johns Hopkins Hospital, Baltimore, MD 21231, USA
Am J Surg Pathol 30:1085-90. 2006..The changes are generally seen in the background of mild chronic hepatitis with mild or no fibrosis. Glycogen pseudoground glass change can resolve, but may also persist for years...