Keratin-7 (Cytokeratin 7)

07/01/2022 - "In previous cases, the immunohistological expression of cytokeratin 7 (CK7), Napsin A, and thyroid transcription factor-1 (TTF-1) has helped identify and diagnose primary malignancy as originating from the lung. "
01/01/2020 - "Tumor samples in the present study had been stained for markers including NUT, P63, P40, TTF-1, keratin, CK7, Syn, CD56, CgA, CD34, CD117, EGFR, and Ki-67. "
08/01/2023 - "On immunohistochemistry (IHC), tumor cells were immunopositive for keratin 7, CDX2, and HepPar-1, p53 (focal), and MUC5AC (focal) while immunonegative for AFP, SALL4, MUC2, CD10, and HER2 (ERBB2) was negative. "
01/01/2023 - "The tumors were mostly negative for thyroid transcription factor-1 (TTF-1), CD34, and p40 and positive for cytokeratin 7 (CK7) in immunohistochemistry (IHC). "
08/08/2022 - "[Clinicopathological features of low-grade oncocytic renal tumor (CD117-negative, cytokeratin 7-positive): report of seven cases]."

11/01/1993 - "Immunohistochemical study of cytokeratin 7 for the differential diagnosis of adenocarcinomas in the ovary."
03/01/2020 - "Cytokeratin 7 was diffusely positive in both adenocarcinoma and LCNEC components, while it was heterogeneously expressed in the ICPN. "
10/16/2018 - "The pathological analysis of the lymph node specimen biopsy indicated adenocarcinoma with cytokeratin 7 and thyroid transcription factor-1 positivity. "
03/14/2018 - "Some ESCC cells express adenocarcinoma cell markers, such as Cytokeratin 7 (CK7), but the clinical significance of these cells in ESCC is unknown. "
01/01/2015 - "Immunohistochemical staining for cytokeratin 7 and 20 revealed that the adenocarcinoma had metastasized from the reconstructed gastric tube. "

03/01/2006 - "The combination of immunohistochemistry for cytokeratin 7 and 20 appeared to be a useful tool in determining the site of origin and helpful for premortem diagnosis of the origin of unknown primary carcinoma."
01/01/2022 - "The role of cytokeratin 7/20 coordination revisited-Machine learning identifies improved interpretative algorithms for cell block immunohistochemistry in aspirates of metastatic carcinoma."
01/01/2024 - "Immunohistochemical analysis showed that this carcinoma was positive for DOG1, SOX10, cytokeratin 7 and negative for mammaglobin. "
12/01/2022 - "Moreover, claudin-18 (≥1%) was positively associated with cytokeratin 7 (CK7) and MUC5AC expression, showing CK7+/MUC5AC+ carcinomas the highest rate of positive cases, whereas a negative correlation was found between claudin-18 and CDX2 expression. "
10/01/2022 - "Carcinoma of Unknown Primary Origin: Application of Immunohistochemistry With Emphasis to Different Cytokeratin 7 and 20 Staining Patterns."

05/08/2021 - "[The application of cytokeratin 7 and elastic fiber double staining with automation platform in the diagnosis of lung adenocarcinoma]."
05/10/2013 - "Pathologic and immunohistochemical examination of ovarian specimen suggested morphology and expression of metastatic lung adenocarcinoma with an intense positivity for Thyroid Transcriptional Factor-1 (TTF-1) and Cytokeratin 7 (CK7) staining. "
01/01/2018 - "Primary and subcutaneous tumors express cytokeratin-7 and thyroid transcription factor-1, markers characteristic to lung adenocarcinoma. "
01/01/2014 - "Immunohistologically, cytokeratin 7 (CK7), thyroid transcription factor-1 (TTF-1), and Napsin were positive, which led to lung adenocarcinoma metastasis. "
02/01/2021 - "His mediastinal lymph node biopsy revealed a lung adenocarcinoma and his subsequent appendiceal immunohistochemistry revealed the same staining pattern for thyroid transcription factor 1 (TTF-1) and cytokeratin 7 (CK-7). "

03/01/2022 - "A Study of Cytokeratin-7 Expression and Clinicopathological Correlation in Dysplasia and Squamous Cell Carcinoma of the Cervix."
11/01/2019 - "Decreased cytokeratin 7 expression correlates with the progression of cervical squamous cell carcinoma and poor patient outcomes."
09/01/2010 - "To evaluate cytokeratin 7 (CK7) immunoreactivity in invasive primary cutaneous squamous cell carcinomas (SCCs). "
11/01/2008 - "Expression of cytokeratin 7 predicts survival in stage I/IIA/IIB squamous cell carcinoma of the esophagus."
01/01/1993 - "Our study demonstrates that this keratin 7 antibody is useful in differentiating between squamous cell carcinoma and adenocarcinoma of the lung and it may be particularly useful in making the correct diagnosis in small lung biopsy specimens."