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Abstract
Numerous therapeutic and prognostic studies of cervical carcinoma have necessitated a revision of the FIGO classification.For microinvasive carcinomas, the horizontal dimension is no longer considered and diagnosis and staging will solely be made by the depth of cervical stromal invasion. Lymphovascular invasion beyond the deepest point of stromal infiltration by tumor cells does not alter the stage.There will be a new subclassification of macroinvasive carcinoma confined to the uterine cervix, which will be made by largest tumor extension as follows: FIGO IB1/T1b1 - invasive carcinoma >0.5 cm depth of stromal invasion and ≤2 cm in largest dimension, FIGO IBII/T1b2: - invasive carcinoma >2 cm and ≤4 cm, FIGO IBII/T1b3 - invasive carcinoma >4 cm. Pelvic as well as para-aortic lymph nodes will be defined as regional nodes. Pelvic lymph node metastases only will be categorised as FIGO IIIC1/pN1a and para-aortic lymph node involvement with or without concomitant pelvic involvement will be FIGO IIIC2/pN1b. Uterine corpus as well as adnexal involvement are not relevant for staging purpose.
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Affiliation(s)
- L-C Horn
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland.
| | - C E Brambs
- Frauenklinik des Klinikums rechts der Isar, Technische Universität München, München, Deutschland
| | - S Opitz
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
| | - U A Ulrich
- Klinik für Gynäkologie und Geburtshilfe, Martin-Luther-Krankenhaus, Berlin, Deutschland
| | - A K Höhn
- Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Institut für Pathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
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Höhn AK, Brambs CE, Opitz S, Erber R, Hartmann A, Horn LC. [Un- and dedifferentiated endometrial carcinoma : A rare entity with a wide range of differential diagnosis]. Pathologe 2019; 40:609-618. [PMID: 31578630 DOI: 10.1007/s00292-019-00670-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Dedifferentiated endometrial carcinomas (ECs) are composed of undifferentiated EC and a FIGO grade 1 or 2 endometrioid carcinoma. The undifferentiated component represents a malignant epithelial neoplasm with no obvious differentiation and immunohistochemical loss of PAX8, E‑cadherin and focal expression of EMA and/or CK18 and the predominant presence of nuclear staining for INI1 (SMARCB1) and BRG1 (SMARCA4). The main differential diagnoses include poorly differentiated endometrioid EC, neuroendocrine carcinoma, lymphoma, plasmocytoma, high-grade endometrial stromal sarcomas, undifferentiated uterine sarcomas (UUS), carcinosarcomas, and metastases to the endometrium. The histogenesis is not yet fully understood and molecular data are still limited. Some tumors represent a loss of MHL1 and PMS2 staining due to MLH1-promotor methylation. Rare cases are associated with Lynch syndrome or POLE mutation. The un- or dedifferentiated EC represents a high-grade endometrial carcinoma that requires extended surgery and indicates a poor prognosis. In cases with mismatch repair protein deficiency or POLE mutation, immuno-oncological treatment with checkpoint inhibitors are a therapeutic option.
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Affiliation(s)
- A K Höhn
- Institut für Pathologie, Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland.
| | - C E Brambs
- Frauenklinik des Klinikums rechts der Isar, Technische Universität München, München, Deutschland
| | - S Opitz
- Institut für Pathologie, Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
| | - R Erber
- Pathologisches Institut, Universitätsklinikum Erlangen, CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - A Hartmann
- Pathologisches Institut, Universitätsklinikum Erlangen, CCC Erlangen-EMN, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Deutschland
| | - L-C Horn
- Institut für Pathologie, Arbeitsgruppe Mamma‑, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
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3
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Abstract
For some gynecologic malignancies, there are disagreements between the most recent WHO and TNM classifications and the recommendations of the International Collaboration of Cancer Reporting. These discrepancies are addressed and discussed in this paper. The WHO definition for primary vaginal cancer does not match the TNM definition. The paper also discusses and provides TNM classifications for rare gynecologic tumors like primary malignant vulvar melanomas, sarcomas of the vulva, perivascular epithelioid cell tumor (PECom) of the uterus, undifferentiated uterine sarcomas, and extra-intestinal gastrointestinal stromal tumors (GIST), and provides some recommendations for the reporting and categorization of regional lymph nodes in nonuterine serous pelvic cancer.
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Affiliation(s)
- L-C Horn
- Institut für Pathologie, Abteilung Mamma‑, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland.
| | - C E Brambs
- Frauenklinik des Klinikums rechts der Isar, Technische Universität München, München, Deutschland
| | - S Opitz
- Institut für Pathologie, Abteilung Mamma‑, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
| | - J Einenkel
- Universitätsfrauenklinik Leipzig (Triersches Institut) im Zentrum für Frauen- und Kindermedizin, Universitätsklinikum Leipzig AöR, Leipzig, Deutschland
| | - D Mayr
- Pathologisches Institut, Ludwig-Maximilians-Universität München, München, Deutschland
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Horn LC, Höhn AK, Hentschel B, Brambs CE. Prognoserelevanz des Gradings beim Plattenepithelkarzinom der Cervix uteri Stadium pT1b1 bei radikal hysterektomierten Patientinnen. Geburtshilfe Frauenheilkd 2019. [DOI: 10.1055/s-0039-1692085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- LC Horn
- Division of Gynecologic, Breast and Perinatal Pathology, Institute of Pathology, University Hospital Leipzig
| | - AK Höhn
- Division of Gynecologic, Breast and Perinatal Pathology, Institute of Pathology, University Hospital Leipzig
| | - B Hentschel
- Institute for Medical Informatics, Statistics and Epidemiology, University Leipzig
| | - CE Brambs
- Department of Obstetrics and Gynecology, Technical University Munich, Munich, Germany
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Horn LC, Brambs CE, Opitz S, Höhn AK. FIGO-Klassifikation für das Zervixkarzinom 2019 – was ist neu? Geburtshilfe Frauenheilkd 2019. [DOI: 10.1055/s-0039-1692083] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
Affiliation(s)
- LC Horn
- Institut für Pathologie, Universitätsklinikum Leipzig AöR
| | - CE Brambs
- Frauenklinik des Klinikums rechts der Isar der Technischen Universität München
| | - S Opitz
- Institut für Pathologie, Universitätsklinikum Leipzig AöR
| | - AK Höhn
- Institut für Pathologie, Universitätsklinikum Leipzig AöR
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Horn LC, Brambs CE, Handzel R, Mehlhorn G, Schmidt D, Schierle K. [Nomenclature of squamous cell precursor lesions of the lower female genital tract : Current aspects]. Pathologe 2017; 37:526-533. [PMID: 27738814 DOI: 10.1007/s00292-016-0239-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The majority of precancerous lesions of the lower female genital tract (intraepithelial neoplasia, IN) are caused by human papillomavirus (HPV) infections resulting in cellular atypia and in turn an altered tissue architecture. Depending on the pathogenesis, a distinction is made between vulvar intraepithelial neoplasia (VIN) classified as classical VIN associated with high-risk HPV infections (u-VIN) and differentiated VIN (d-VIN), which is associated with lichen sclerosus et atrophicus and p53 alterations. In the current World Health Organization (WHO) classification a novel grading system for squamous cell precancerous lesions of the lower female genital tract has been proposed, differentiating low grade squamous intraepithelial lesions (L-SIL) including condyloma and HPV-associated alterations plus VIN 1, vaginal intraepithelial neoplasia (VaIN 1) and cervical intraepithelial neoplasia (CIN 1) from high grade squamous intraepithelial lesions (H-SIL) with VIN 2 and 3, VaIN 2 and 3 as well as CIN 2 and 3. The use of p16 immunohistochemistry can assist the differentiation. The new binary classification, however, contradicts the German cytological nomenclature (Munich nomenclature III), which differentiated three grades of dysplasia in order to avoid overtreatment of patients with moderate IN. The individual nomenclatures are compared to each other. It is recommended to report the grade of precancerous lesions in addition to the SIL classification of the WHO.
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Affiliation(s)
- L-C Horn
- Institut für Pathologie, Abteilung Mamma-, Gynäko- und Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland.
| | - C E Brambs
- Frauenklinik des Klinikums rechts der Isar, Technische Universität München, München, Deutschland
| | - R Handzel
- Universitätsfrauenklinik Leipzig (Triersches Institut) im Zentrum für Frauen- und Kindermedizin, Universitätsklinikum Leipzig AöR, Leipzig, Deutschland
| | - G Mehlhorn
- Frauenklinik, Universitätsklinikum Erlangen, Erlangen, Deutschland
| | - D Schmidt
- Institut für Pathologie, Viersen, Deutschland
| | - K Schierle
- Institut für Pathologie, Abteilung Mamma-, Gynäko- und Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
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7
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Abstract
Histopathological assessment of the tumor grade and cell type is central to the management and prognosis of various gynecological malignancies. Conventional grading systems for squamous carcinomas and adenocarcinomas of the vulva, vagina and cervix are poorly defined. For endometrioid tumors of the female genital tract as well as for mucinous endometrial, ovarian and seromucinous ovarian carcinomas, the 3‑tiered FIGO grading system is recommended. For uterine neuroendocrine tumors the grading system of the gastrointestinal counterparts has been adopted. Uterine leiomyosarcomas are not graded. Endometrial stromal sarcomas are divided into low and high grades, based on cellular morphology, immunohistochemical and molecular findings. A chemotherapy response score was established for chemotherapeutically treated high-grade serous pelvic cancer. For non-epithelial ovarian malignancies, only Sertoli-Leydig cell tumors and immature teratomas are graded. At this time molecular profiling has no impact on the grading of tumors of the female genital tract.
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Affiliation(s)
- L-C Horn
- Institut für Pathologie, Abteilung Mamma-, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland.
| | - D Mayr
- Pathologisches Institut, Ludwig-Maximilins-Universität, München, Deutschland
| | - C E Brambs
- Frauenklinik des Klinikums rechts der Isar, Technischen Universität München, München, Deutschland
| | - J Einenkel
- Universitätsfrauenklinik Leipzig (Triersches Institut) im Zentrum für Frauen- und Kindermedizin, Universitätsklinikum Leipzig AöR, Leipzig, Deutschland
| | - I Sändig
- Institut für Pathologie, Abteilung Mamma-, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
| | - K Schierle
- Institut für Pathologie, Abteilung Mamma-, Gynäko- & Perinatalpathologie, Universitätsklinikum Leipzig AöR, Liebigstraße 26, 04103, Leipzig, Deutschland
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