Synonyms[]
Antibodies[]
- 34BE12
Technical Info[]
Staining Pattern[]
Expression in Normal Tissues[]
- Cornea
- Breast myoepithelial cells
- Mesothelium
- Adult nail unit
- Basal layer of: prostate, skin, urothelium, spermatogenic cells, and salivary glands
- Esophagus
- Epidermal and epithelial glands
- Oral mucosa
- Stomach
Expression in Neoplastic Entities[]
Benign[]
Intermediate[]
Malignant[]
Expression in Non-Neoplastic Entities[]
- Psoriasis
- Cutaneous amyloidosis[5]
Practical Uses / Panels[]
- Usual ductal hyperplasia vs. DCIS[1]
- Epitheliod mesothelioma vs. lung adenocarcinoma[6]
- Has prognostic value when used with EGFR to determine if a triple negative breast carcinoma (ER-, PR-, Her2-) is expressing basal cell antigens (Basal-like breast carcinomas are CK5/6+ and EGFR+ and have a worse prognosis)[7]
- Sinonasal Undifferentiated Carcinoma (SNUC) vs Squamous Cell Carcinoma (keratinizing and non-keratinizing types) in the sinonasal tract.[8]
Common Pitfalls[]
Related Links/Other Resources[]
http://www.nature.com/modpathol/journal/v15/n1/full/3880483a.html
References[]
- ↑ 1.0 1.1 Rabban JT, Koerner FC, Lerwill MF. Solid papillary ductal carcinoma in situ versus usual ductal hyperplasia in the breast: a potentially difficult distinction resolved by cytokeratin 5/6. Hum Pathol. 2006;37(7):787-93
- ↑ 2.0 2.1 Wieneke JA, Thompson LD, Heffess CS. Adrenal cortical neoplasms in the pediatric population: a clinicpathologic and immunophenotypic analysis of 83 patients. Am J Surg Pathol. 2003;27(7):867-81
- ↑ Camilo R, Capelozzi VL, Siqueira SA, Del Carlo Bernardi F. Expression of p63, keratin 5/6, keratin 7, and surfactant-A in non-small cell lung carcinomas. Hum Pathol. 2006, 37(5):542-6
- ↑ Miettinen M, Sarlomo-Rikala M. Expression of calretinin, thrombomodulin, keratin 5, and mesothelin in lung carcinomas of different types: an immunohistochemical analysis of 596 tumors in comparison with epithelioid mesotheliomas of the pleura. Am J Surg Pathol. 2003;27(2):150-8
- ↑ Chang YT, Liu HN, Wang WJ, Lee DD, Tsai SF. A study of cytokeratin profiles in localized cutaneous amyloids. Arch Dermatol Res. 2004;296(2):83-8
- ↑ King JE, Thatcher N, Pickering CA, Hasleton PS. Sensitivity and specificity of immunohistochemical markers used in the diagnosis of epithelioid mesothelioma: a detailed systematic analysis using published data. Histopathology. 2006;48(3):223-32
- ↑ BMC Cancer. 2007 Jul 24;7:134.
- ↑ Franchi A, Moroni M, Massi D, Paglierani M, Santucci M. Sinonasal undifferentiated carcinoma, nasopharyngeal-type undifferentiated carcinoma, and keratinizing and nonkeratinizing squamous cell carcinoma express different cytokeratin patterns. Am J Surg Pathol. 2002 Dec;26(12):1597-604.