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Nappo G, Funel N, Laurenti V, Stenner E, Carrara S, Bozzarelli S, Spaggiari P, Zerbi A. Ampullary Cancer: Histological Subtypes, Markers, and Clinical Behaviour-State of the Art and Perspectives. Curr Oncol 2023; 30:6996-7006. [PMID: 37504367 PMCID: PMC10378042 DOI: 10.3390/curroncol30070507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 07/15/2023] [Accepted: 07/20/2023] [Indexed: 07/29/2023] Open
Abstract
There are different cancers in the peri-ampullary region, including pancreatic ductal adenocarcinoma (PDAC), duodenum cancers (DCs), and ampullary adenocarcinoma (AAC). Here, significant morphological-molecular characterizations should be necessary for the distinction of primary tumours and classifications of their subtypes of cancers. The sub classification of AACs might include up to five different variants, according to different points of view, concerning the prevalence of the two more-cellular components found in the ampulla. In particular, regarding the AACs, the most important subtypes are represented by the intestinal (INT) and the pancreato-biliary (PB) ones. The subtyping of AACs is essential for diagnosis, and their identifications have been impacting clinical management responses to treatments and overall survival (os) after surgery. Pb is associated with a worse clinical outcome. Otherwise, the criteria, through which are possible to attribute its subtype classification, are not well established. A triage of immune markers represented by CK7, CK20, and CDX-2 seem to represent the best compromise in order to split the cohort of AAC patients in the INT and PB groups. The test of choice for the sub-classification of AACs is represented by the immuno-histochemical approach, in which its molecular classification acquires its diagnostic, predictive, and prognostic value for both the INT and PB patients.
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Affiliation(s)
- Gennaro Nappo
- Pancreatic Surgery Unit, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
| | - Niccola Funel
- USL Toscana Nordovest, Chemical-Clinical Analysis Laboratory, Department of Diagnostics, 56121 Pisa, Italy
| | - Virginia Laurenti
- Pancreatic Surgery Unit, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Elisabetta Stenner
- USL Toscana Nordovest, Chemical-Clinical Analysis Laboratory, Department of Diagnostics, 56121 Pisa, Italy
| | - Silvia Carrara
- Endoscopic Unit, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Silvia Bozzarelli
- Medical Oncology and Hematology Unit, Humanitas Cancer Center, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Paola Spaggiari
- Pathology Unit, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
| | - Alessandro Zerbi
- Pancreatic Surgery Unit, Humanitas Clinical and Research Center-IRCCS, 20089 Rozzano, Italy
- Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20090 Milan, Italy
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CDX2 expression in primary skin tumors-case series and review of the literature. Hum Pathol 2022; 129:1-10. [PMID: 35926811 DOI: 10.1016/j.humpath.2022.07.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 07/10/2022] [Accepted: 07/12/2022] [Indexed: 12/14/2022]
Abstract
CDX2 expression characterizes tumors of gastrointestinal origin, including those of intestinal-type differentiation. In dermatopathology, CDX2 expression is reported in 4 settings: cutaneous metastases from carcinomas of intestinal origin or differentiation, extramammary Paget's disease associated with an underlying colorectal or urothelial tumor, pilomatricomas and pilomatrical carcinomas, and rare primary cutaneous (adeno)squamous carcinomas with intestinal immunophenotype. Over 4 years (10/2017-10/2021), 252 dermatopathology cases with CDX2 immunostain were reviewed, revealing 46 cases with confirmed positive staining. Among them, 11 cases confirmed as primary nonintestinal type cutaneous carcinoma with definitively positive CDX2 nuclear staining were further studied. All cases demonstrated basaloid morphology with atypia, variable necrosis, and brisk mitotic activity. Cases 1-5 had heterogeneous features that cannot be further classified, including 2 cases with neuroendocrine or pseudoglandular/pseudopapillary features, and 1 case with human papillomavirus high-risk E6/E7 ISH positivity. In cases 6 through 11, the diagnosis of pilomatrical carcinoma was supported morphologically. This study substantiates the association of CDX2 with pilomatrical carcinoma. In addition, CDX2 positivity was observed in a subset of basaloid cutaneous carcinomas of ambiguous classification. However, this finding also raises a diagnostic pitfall in clinical diagnostic specificity of the CDX2 immunostain in skin cancers, which can be observed in rare while heterogeneous subsets of primary cutaneous carcinomas with primitive cytomorphology.
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