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Ricci C, Ambrosi F, Franceschini T, Giunchi F, Maracci ME, Sirolli M, Orsatti A, Chiarucci F, Franchini E, Borsato M, Massari F, Mollica V, Bianchi FM, Colecchia M, Acosta AM, Fiorentino M. H&E and OCT4/CD34 for the assessment of lympho-vascular invasion in seminoma and embryonal carcinoma. Pathol Res Pract 2023; 242:154337. [PMID: 36706585 DOI: 10.1016/j.prp.2023.154337] [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: 12/13/2022] [Revised: 01/20/2023] [Accepted: 01/21/2023] [Indexed: 01/25/2023]
Abstract
BACKGROUND Lymphovascular invasion (LVI) is a relevant prognostic factor in germ cell tumors of the testis (GCTT), and it is included in the pT stage. However, its detection on hematoxylin and eosin (H&E) slides is very challenging, and previous studies reported fair to moderate inter-observer agreement among dedicated uropathologists. In the present study, we tested H&E and a recently developed in-house double staining for OCT4/CD34 to detect LVI in GCTT. METHODS Nine authors [5 non-uropathologists and 4 uropathologists] independently evaluated 34 consecutive and retrospectively enrolled cases of GCTT. We assessed the inter-observer agreement (Fleiss's Kappa) with both H&E and OCT4/CD34. Besides, we compared the consensus diagnosis on both H&E and OCT4/CD34-stained sections with the original diagnosis to evaluate the pT re-staging (McNemar test) and identify the sources of disagreement. RESULTS The inter-observer agreement among uropathologists plus non-uropathologists was fair with both H&E (KF=0.398; p < 0.001) and OCT4/CD34 (KF=0.312; p < 0.001). OCT4/CD34 (KF=0.290; p < 0.001) slightly reduces the inter-observer agreement compared to H&E (KF=0.321; p < 0.001) for non-uropathologists; in contrast, OCT4/CD34 (KF=0.293; p < 0.001) significantly reduces the inter-observer agreement compared to H&E (KF=0.529; p < 0.001) for uropathologists, changing it from moderate to fair. Consensus diagnosis with H&E modified the LVI status of the original diagnosis in 8/34 (23.5 %) cases (p: 0.070), with pT re-staging in 2/34 (5.9 %) cases (p: 0.500). Consensus diagnosis with OCT4/CD34 modified the LVI status of the original diagnosis in 8/34 (23.5 %) cases (p: 0.289), with pT re-staging in 3/34 (8.8 %) cases (p: 0.250). The consensus diagnosis with OCT4/CD34 modified the consensus diagnosis with H&E in 8/34 (23.5 %) cases (p: 0.727), and these findings resulted in pT-restaging in 3/34 (8.8 %) cases (p: 0.500). The sources of disagreement among uropathologists were: H&E [artefactual clefts misinterpreted as LVI in 4/6 (66.7 %) cases and true foci of LVI misinterpreted as clusters of histiocytes within the vessels in 2/6 (33.3 %) cases], OCT4/CD34 [artefactual clefts misinterpreted as LVI in 2/8 (25 %) cases, true LVI misinterpreted as artefactual clefts in 2/8 (25 %) cases or floaters in 4/8 (50 %) cases]. CONCLUSIONS OCT4/CD34 does not improve the inter-observer agreement for the assessment of LVI in OCT4(+) GCTT. Consensus diagnosis with H&E modifies the LVI status in a significant number of cases, resulting in changes of the pT stage in a relatively small subgroup. Consensus diagnosis with OCT4/CD34 provides little additional benefit since it cannot exclude mimickers of LVI such as floaters and artefactual clefts. These results argue against the adoption of this diagnostic tool for the routine assessment of OCT4(+) GCTT.
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Affiliation(s)
- Costantino Ricci
- Pathology Unit, Maggiore Hospital-AUSL Bologna, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | - Francesca Ambrosi
- Pathology Unit, Maggiore Hospital-AUSL Bologna, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy
| | | | - Francesca Giunchi
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | - Maria Sirolli
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Agnese Orsatti
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | | | - Matteo Borsato
- Pathology Unit, Maggiore Hospital-AUSL Bologna, Bologna, Italy
| | - Francesco Massari
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy; Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | - Veronica Mollica
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy; Medical Oncology, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Bologna, Italy
| | | | - Maurizio Colecchia
- Department of Pathology, IRCCS San Raffaele Scientific Institute, Milano, Italy
| | - Andres Martin Acosta
- Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, USA
| | - Michelangelo Fiorentino
- Pathology Unit, Maggiore Hospital-AUSL Bologna, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, Bologna, Italy.
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Di Sciascio L, Ambrosi F, Franceschini T, Giunchi F, Franchini E, Massari F, Bianchi FM, Colecchia M, Fiorentino M, Ricci C. Could double stain for p53/CK20 be a useful diagnostic tool for the appropriate classification of flat urothelial lesions? Pathol Res Pract 2022; 234:153937. [DOI: 10.1016/j.prp.2022.153937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 04/30/2022] [Accepted: 05/04/2022] [Indexed: 10/18/2022]
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Ricci C, Dika E, Ambrosi F, Lambertini M, Veronesi G, Barbara C. Cutaneous Melanomas: A Single Center Experience on the Usage of Immunohistochemistry Applied for the Diagnosis. Int J Mol Sci 2022; 23:5911. [PMID: 35682589 PMCID: PMC9180684 DOI: 10.3390/ijms23115911] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Revised: 05/16/2022] [Accepted: 05/19/2022] [Indexed: 12/12/2022] Open
Abstract
Cutaneous melanoma (cM) is the deadliest of all primary skin cancers. Its prognosis is strongly influenced by the stage at diagnosis, with early stages having a good prognosis and being potentially treatable with surgery alone; advanced stages display a much worse prognosis, with a high rate of recurrence and metastasis. For this reason, the accurate and early diagnosis of cM is crucial-misdiagnosis may have extremely dangerous consequences for the patient and drastically reduce their chances of survival. Although the histological exam remains the "gold standard" for the diagnosis of cM, a continuously increasing number of immunohistochemical markers that could help in diagnosis, prognostic characterization, and appropriate therapeutical choices are identified every day, with some of them becoming part of routine practice. This review aims to discuss and summarize all the data related to the immunohistochemical analyses that are potentially useful for the diagnosis of cM, thus rendering it easier to appropriately applicate to routine practice. We will discuss these topics, as well as the role of these molecules in the biology of cM and potential impact on diagnosis and treatment, integrating the literature data with the experience of our surgical pathology department.
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Affiliation(s)
- Costantino Ricci
- Pathology Unit, Ospedale Maggiore, 40139 Bologna, Italy; (C.R.); (F.A.)
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40139 Bologna, Italy;
| | - Emi Dika
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), University of Bologna, 40139 Bologna, Italy;
| | - Francesca Ambrosi
- Pathology Unit, Ospedale Maggiore, 40139 Bologna, Italy; (C.R.); (F.A.)
| | - Martina Lambertini
- Dermatology Unit, IRCCS Policlinico Sant’Orsola-Malpighi, University of Bologna, 40139 Bologna, Italy; (M.L.); (G.V.)
| | - Giulia Veronesi
- Dermatology Unit, IRCCS Policlinico Sant’Orsola-Malpighi, University of Bologna, 40139 Bologna, Italy; (M.L.); (G.V.)
| | - Corti Barbara
- Pathology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico di Sant’Orsola, 40139 Bologna, Italy
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