{"id":502,"date":"2025-04-03T08:17:53","date_gmt":"2025-04-03T08:17:53","guid":{"rendered":"https:\/\/neurosurgicalsociety.lu\/?p=502"},"modified":"2025-04-03T08:26:42","modified_gmt":"2025-04-03T08:26:42","slug":"pituitary-neuroendocrine-tumor-pitnet","status":"publish","type":"post","link":"https:\/\/neurosurgicalsociety.lu\/de\/pituitary-neuroendocrine-tumor-pitnet\/","title":{"rendered":"Hypophysen-(Neuroendokriner) Tumor (PitNET)"},"content":{"rendered":"

[vc_section full_width=“stretch_row“ min_height=“289″ css=“.vc_custom_1734115520928{background-image: url(https:\/\/neurosurgicalsociety.lu\/wp-content\/uploads\/2024\/12\/Mask-Group-5.jpg?id=2) !important;}“][vc_row][vc_column][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=“stretch_row“ content_placement=“middle“][vc_row full_width=“stretch_row_content_no_spaces“ content_placement=“middle“][vc_column width=“1\/2″ css=“.vc_custom_1734116648319{background-color: #2B8899 !important;}“ el_class=“max-half-width“][vc_column_text css=““]<\/p>\n

Hypophysen-(Neuroendokriner) Tumor (PitNET)<\/h1>\n

[\/vc_column_text][\/vc_column][vc_column width=“1\/2″][\/vc_column][\/vc_row][\/vc_section][vc_section][vc_row css=“.vc_custom_1734117085525{margin-top: 100px !important;margin-bottom: 50px !important;}“][vc_column][vc_column_text css=““]Ein Hypophysen-Neuroendokriner Tumor (PitNET), fr\u00fcher bekannt als Hypophysenadenom, ist ein Tumor der Hypophyse, einer kleinen endokrinen Dr\u00fcse an der Sch\u00e4delbasis. Diese Tumoren werden in zwei Hauptgruppen unterteilt: funktionelle PitNETs, die \u00fcberm\u00e4\u00dfig Hormone (z. B. Wachstumshormon, Prolaktin, ACTH) produzieren, und nicht-funktionelle PitNETs, die keine signifikante hormonelle Aktivit\u00e4t aufweisen, jedoch durch ihr Wachstum benachbarte Strukturen komprimieren k\u00f6nnen.<\/p>\n

Synonyme: <\/strong>Hypophysenadenom (historische Bezeichnung), Hypophysentumor, Neuroendokriner Tumor der Hypophyse<\/h4>\n

Chirurgische Behandlung: Endoskopische Transsphenoidale Resektion<\/strong><\/h3>\n

Der Standardansatz zur Entfernung eines PitNET ist die endoskopische transsphenoidale Operation, bei der der Tumor durch die Nase (transsphenoidaler Zugang) entfernt wird, ohne \u00e4u\u00dfere Schnitte. Diese Technik erm\u00f6glicht einen minimalinvasiven Zugang zur Hypophyse \u00fcber die Keilbeinh\u00f6hle und hinterl\u00e4sst keine sichtbare Narbe am Kopf. Der Eingriff wird in der Regel mit einem endonasalen endoskopischen Ansatz durchgef\u00fchrt, oft unterst\u00fctzt durch Neuronavigation und intraoperative Bildgebung.<\/p>\n

Je nach Gr\u00f6\u00dfe und Ausdehnung des Tumors kann eine Fetttransplantation aus der Bauchdecke oder dem Oberschenkel erforderlich sein, um den Operationsbereich abzudichten und das Risiko einer Liquorfistel (CSF-Leck) zu verringern.<\/p>\n

Postoperative Erholung & \u00dcberwachung<\/strong><\/h3>\n

Patienten verbringen in der Regel die ersten 24\u201348 Stunden auf einer Intermediate Care Unit oder Intensivstation (ICU), abh\u00e4ngig von den intraoperativen Befunden und ihrer Stabilit\u00e4t. Eine engmaschige \u00dcberwachung ist notwendig, um m\u00f6gliche Komplikationen fr\u00fchzeitig zu erkennen:<\/p>\n

Fl\u00fcssigkeits- und Elektrolythaushalt<\/strong><\/h4>\n
    \n
  • Diabetes insipidus (DI): Eine vor\u00fcbergehende oder dauerhafte St\u00f6rung, die durch unzureichendes antidiuretisches Hormon (ADH) verursacht wird, was zu \u00fcberm\u00e4\u00dfiger Urinausscheidung und Dehydratation f\u00fchrt.<\/li>\n
  • Syndrom der inad\u00e4quaten ADH-Sekretion (SIADH): Kann zu Hyponatri\u00e4mie (niedrige Natriumwerte) f\u00fchren, die eine sorgf\u00e4ltige Fl\u00fcssigkeitsregulierung erfordert.<\/li>\n<\/ul>\n

    Liquorfistel & Wundheilung<\/strong><\/h4>\n
      \n
    • Eine Liquorfistel (CSF-Leck) kann postoperativ auftreten und erfordert unter Umst\u00e4nden Bettruhe, eine lumbale Drainage oder eine erneute Operation.<\/li>\n
    • Falls eine Fetttransplantation verwendet wurde, verbleibt eine kleine zus\u00e4tzliche Wunde an der Bauchdecke oder am Oberschenkel.<\/li>\n<\/ul>\n

      Visuelle Nachkontrolle<\/strong><\/h4>\n
        \n
      • Falls das PitNET das Chiasma opticum oder die Sehnerven komprimierte und dadurch pr\u00e4operative Sehst\u00f6rungen (z. B. bitemporale Hemianopsie, reduzierte Sehsch\u00e4rfe, Farbsehst\u00f6rungen) verursachte, ist eine postoperative augen\u00e4rztliche Kontrolle notwendig.<\/li>\n
      • Die visuelle Funktion kann sich verbessern, stabil bleiben oder verschlechtern, abh\u00e4ngig von der Dauer und Schwere der Kompression.<\/li>\n
      • Standardm\u00e4\u00dfig erfolgt eine Gesichtsfeldpr\u00fcfung und Sehnervbewertung, meist 3 Monate nach der Operation und in regelm\u00e4\u00dfigen Abst\u00e4nden danach.<\/li>\n<\/ul>\n

        Bildgebung & Langfristige Nachsorge<\/strong><\/h4>\n
          \n
        • Eine postoperative MRT wird in der Regel 3 Monate nach der Operation durchgef\u00fchrt, um das Operationsergebnis und die Heilung zu beurteilen.<\/li>\n
        • Eine endokrinologische Nachsorge ist essenziell, da einige Patienten hormonelle Defizite entwickeln, die eine Hormonersatztherapie erfordern.<\/li>\n<\/ul>\n

          Der transsphenoidale endoskopische Ansatz hat die Hypophysenchirurgie revolutioniert und erm\u00f6glicht eine schnellere Erholung, reduzierte Komplikationen und keine \u00e4u\u00dfere Narbe. Eine langfristige Nachsorge ist jedoch notwendig, um Tumorrezidive, hormonelle Funktionen, die Sehkraft-Erholung und m\u00f6gliche Sp\u00e4tkomplikationen zu \u00fcberwachen.[\/vc_column_text][vc_row_inner][vc_column_inner width=“1\/4″][\/vc_column_inner][vc_column_inner width=“1\/2″][vc_column_text css=““]

          Haftungsausschluss:<\/b><\/b><\/h3>\n

          Die oben genannten Informationen dienen als allgemeine Orientierung und ersetzen nicht die individuelle Beratung durch einen qualifizierten medizinischen Fachmann. Die Luxemburger Gesellschaft f\u00fcr Neurochirurgie und Wirbels\u00e4ulenchirurgie a.s.b.l. (SLNCR) \u00fcbernimmt keine Verantwortung f\u00fcr die Genauigkeit, Vollst\u00e4ndigkeit oder Anwendbarkeit dieser Informationen auf spezifische F\u00e4lle sowie f\u00fcr Operationsergebnisse, chirurgenspezifische Vorgehensweisen oder m\u00f6gliche Komplikationen. Patienten wird empfohlen, alle Details ihrer Erkrankung, der Behandlungsm\u00f6glichkeiten und der potenziellen Risiken direkt mit ihrem Chirurgen zu besprechen.[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

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