Jul 1, 2017 · A. p16 immunohistochemistry is not recommended as a routine adjunct assessment when the biopsy interpretation is negative, CIN I or CIN III. Strong and diffuse block staining for p16 . Sep 3, 2020 · Positive for both p16 (diffuse, block-like) and p53 (aberrant patterns, see Negative stains) Mimics: EEC with papillary architecture (villoglandular, small nonvillous papillae, micropapillae): Less . Sep 17, 2025 · p16: diffuse and strong nuclear and cytoplasmic reactivity (block type staining); improper use / interpretation may lead to overdiagnosis of HSIL Surgical excision is the treatment of choice, .
Nov 25, 2025 · Positive stains p16: strong and diffuse block-like positivity in HPV related adenocarcinoma in situ types, patchy or negative staining in gastric type (rarely overexpressed) . Nov 20, 2019 · Cytomorphologic overlap Also p16 + and high risk HPV+ Adenoid cystic carcinoma, solid type Basaloid tumor cells with high N/C ratio and angulated nuclei CD117 (c-kit)+ p16 -, high risk . Oct 26, 2023 · Answer B is incorrect because Ki67 shows only a variable growth fraction as in many other lesions. Answer C is incorrect because p16 is overexpressed in HPV associated VIN. Answer E .
Immunostains, routine stains and CD markers at PathologyOutlines.comig Oct 11, 2021 · Cervix - LSIL / CIN I / low grade dysplasia - transient / self limited infection by human papillomavirus (low risk or high risk HPV) Aug 28, 2025 · Serous carcinoma is a high grade endometrial carcinoma with complex papillary, solid or glandular architecture and marked cytologic atypia, similar to tubo-ovarian high grade serous .
Mar 4, 2021 · Malignant neoplasm of mesothelial differentiation that arises from mesothelial lining cells of the pleura
- Positive for both p16 (diffuse, block-like) and p53 (aberrant patterns, see Negative stains) Mimics.
- Cytomorphologic overlap Also p16 + and high risk HPV+ Adenoid cystic carcinoma, solid type Basaloid tumor cells with high N/C ratio and angulated nuclei CD117 (c-kit)+ p16 -, high risk.
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