Publications by authors named "M Hockel"

Background: According to international guidelines, standard treatment (ST) with curative intent in cervical cancer (CC) comprises radical hysterectomy and pelvic lymphadenectomy in early stages (International Federation of Gynecology and Obstetrics (FIGO) 2009 IB1, IIA1), adjuvant chemoradiation is recommended based on risk factors upon final pathology. Definitive chemoradiation is recommended in locally advanced stages (FIGO 2009 IB2, IIA2, IIB). Total mesometrial resection (TMMR) with therapeutic lymph node dissection (tLND) without adjuvant radiation has emerged as a promising treatment.

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Article Synopsis
  • Cervical squamous cell carcinomas (CSCCs) linked to uterine prolapse show limited prior research, prompting a detailed study of their morphologic and molecular traits, including the identification of a new precursor lesion termed HPV-independent cervical intraepithelial neoplasia (CIN).
  • The study involved four patients, primarily older women with advanced disease and TP53 mutations, none showing the common HPV DNA typically associated with cervical cancer.
  • The precursor lesions displayed characteristics akin to differentiated vulvar intraepithelial lesions, suggesting a unique tumorigenetic pathway that differs from typical HPV-related processes.
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Objective: Vulvar squamous cell carcinoma (VSCC) can be stratified into three molecular subtypes based on the immunoexpression of p16 and p53: HPV-independent p53-abnormal (p53abn) (most common, biologically aggressive), HPV-associated, with p16-overexpression (second most common, prognostically more favourable) and more recently recognised HPV-independent p53-wildtype (p53wt) (rarest subtype, prognostically intermediate). Our aim was to determine whether molecular subtypes can be reliably identified in pre-operative biopsies and whether these correspond to the subsequent vulvectomy specimen.

Methods: Matched-paired pre-surgical biopsies and subsequent resection specimen of 57 patients with VSCC were analysed for the immunohistochemical expression of p16 and p53 by performing a three-tiered molecular subtyping to test the accuracy rate.

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Background: The administration of intravenous fluids includes various indications, e.g., fluid replacement, nutritional therapy or as a solvent for drugs and is a common routine in the intensive care unit (ICU); however, overuse of intravenous fluids can lead to fluid overload, which can be associated with a poorer outcome in critically ill patients.

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Objectives: Vulvar squamous cell carcinoma is subclassified into three prognostically relevant groups: (i) human papillomavirus (HPV) associated, (ii) HPV independent p53 abnormal (mutant pattern), and (iii) HPV independent p53 wild type. Immunohistochemistry for p16 and p53 serve as surrogates for HPV viral integration and mutational status. We assessed the reproducibility of the subclassification based on p16 and p53 immunohistochemistry and evaluated the prognostic significance of vulvar squamous cell carcinoma molecular subgroups in a patient cohort treated by vulvar field resection surgery.

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