I am a member of the Endocrine Pathology and Cytopathology Sub-Specialty groups. My service work and research interests include addressing the diagnostic and prognostic problems related to general endocrine pathology with emphasis in thyroid pathology. I am particularly interested in the role of environmental and genetic factors in early thyroid carcinogenesis and mechanisms of evolution of thyroid tumors to more aggressive variants.  As a cytopathologist I sign out thyroid fine needle aspirations, correlate the findings with excision specimens and hope to contribute to the development of improved criteria for the accurate cytodiagnosis of thyroid tumors.


Medical School University of Istanbul (1984)
Residency University of Istanbul (1988), Anesthesiology/critical Care
Residency Lenox Hill Hospital (1993), Anatomic & Clinical Pathology
Fellowship University of TX M D Anderson Ctr (1994), Cytopathology
Fellowship University of TX M D Anderson Ctr (1995), Surgical Pathology

Research Interest

  • Colorectal Carcinogenesis
  • Thyroid carcinogenesis.


Featured Publications LegendFeatured Publications

Split sample comparison of ThinPrep and conventional smears in endoscopic retrograde cholangiopancreatography-guided pancreatic fine-needle aspirations
Siddiqui MT, Gokaslan ST, Saboorian MH, Ashfaq R.
Screening methods for high-grade dysplasia in patients with anal condyloma
Papaconstantinou HT, Lee AJ, Simmang CL, Ashfaq R, Gokaslan ST, Sokol S, Huber PJ Jr, Gregorcyk SG.
Nonsurgical delay of dorsal rat cutaneous flap using a long-pulsed 1064-nm Nd:YAG laser with a contact cooling device
Acikel C, Kenkel JM, Ozturk S, Nojima K, Hoopman JE, Gokaslan ST, Brown SA. Plast Reconstr Surg October 2005 116(5) 1411-20
Fas deficiency exacerbates cerulein-induced pancreatitis.
Jeyarajah DR, Kielar M, Gokaslan ST, Lindberg G, Lu CY. J Invest Surg. Winter 2003 16(6): 325-33
Identification and Validation of Genes Involved in the Pathogenesis of Colorectal Cancer Using cDNA Microarrays and RNA Interference
Williams NS, Gaynor RB, Scoggin S, Verma U, Gokaslan T, Simmang C, Fleming J, Tavana D, Frenkel E, Becerra C. Clin Cancer Res. March 2003 9(3): 931-46

Honors & Awards

  • Vernie Stembridge, M.D. Resident Teaching Award
    Award given for contribution to resident teaching (2007)
  • Vernie Stembridge, M.D. Resident Teaching Award
    Award given for contribution to resident teaching (2000)
  • M.D. Anderson Cancer Center Clinical Fellow Research Award
    Monetary award given to selected fellows for research (1993)