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. Author manuscript; available in PMC: 2015 Mar 19.
Published in final edited form as: Pathol Oncol Res. 2014 Jun 3;21(1):167–172. doi: 10.1007/s12253-014-9802-x

Table.

Final Diagnosis of 15 Cases in Which Cytologic and Histologic Discordance Observed

IHCa
Case No. Cytologic Diagnosis Histologic Diagnosis TTF-1 p63 Final Diagnosis
    9 NSCLC-NOS Fav AC Neg 3+ SqCC
  14 Fav AC Fav SqCC Neg 3+ SqCC
  15 AC Fav SqCC Neg 3+ SqCC
  18 Fav AC Fav SqCC 3+ 3+ AC
  21 Fav AC Fav SqCC Neg 3+ SqCC
  22 Fav AC NSCLC-NOS Neg 3+ SqCC
  27 Fav SqCC NSCLC-NOS 3+ 3+ AC
  28 Fav SqCC Fav AC 3+ 3+ AC
  29 AC Fav SqCC Neg 3+ SqCC
  46 Fav AC SqCC Neg 3+ SqCC
  49 Fav AC NSCLC-NOS Neg 3+ SqCC
  79 Fav AC NSCLC-NOS Neg 3+ SqCC
  80 Fav AC SqCC Neg 3+ SqCC
  97 AC SqCC Pearl formation SqCC
109 Fav SqCC Fav AC 3+ 3+ AC

Abbreviations: AC, adenocarcinoma; fav, favor; IHC, immunohistochemistry; Neg, negative; NSCLC-NOS, non–small cell lung carcinoma, not otherwise specified; SqCC, squamous cell carcinoma, TTF-1, thyroid transcription factor-1.

a

3+ indicates strong immunostain observed in more than 50% of tumor cells.