Practical methods to differentiate thymic malignancies by positron-emission tomography and tumor markers

© 2024. The Author(s) under exclusive licence to Springer Nature Singapore Pte Ltd..

PURPOSE: An accurate diagnosis of thymic malignancies is important, but challenging due to the broad range of differential diagnoses. This study aims to evaluate the efficacy of PET/CT and tumor markers for diagnosing thymic malignancies.

METHODS: Patients admitted to our department between January 2012 and December 2021 with primary anterior mediastinal tumors were retrospectively evaluated. We evaluated the relationship between the maximum standardized uptake value (SUVmax), tumor markers, and pathological diagnosis in four groups: thymic carcinoma, thymoma, lymphoma, and others.

RESULTS: In total, 139 patients were included in this study. The SUVmax was significantly higher in lymphoma, thymic carcinoma, and thymoma, in that order. The cytokeratin 19 fragment (CYFRA 21-1) was significantly higher in thymic carcinoma than in the other groups. An ROC curve analysis indicated that the optimal cut-off values of SUVmax for thymic carcinoma plus lymphoma and CYFRA 21-1 for thymic carcinoma were 7.97 (AUC = 0.934) and 2.95 (AUC = 0.768), respectively. Using a combination of cut-off values (SUVmax = 8, CYFRA 21-1 = 3), the accuracy rate for diagnosing thymic carcinoma was 91.4%.

CONCLUSIONS: The SUVmax and CYFRA 21-1 levels are significant indicators for the diagnosis of thymic carcinoma. Combining these indicators resulted in a more accurate diagnosis of thymic malignancies, which could facilitate the decision-making process for determining the optimal treatment strategies.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - year:2024

Enthalten in:

Surgery today - (2024) vom: 27. Feb.

Sprache:

Englisch

Beteiligte Personen:

Yanagihara, Takahiro [VerfasserIn]
Kawamura, Tomoyuki [VerfasserIn]
Maki, Naoki [VerfasserIn]
Kobayashi, Naohiro [VerfasserIn]
Kikuchi, Shinji [VerfasserIn]
Goto, Yukinobu [VerfasserIn]
Ichimura, Hideo [VerfasserIn]
Sato, Yukio [VerfasserIn]

Links:

Volltext

Themen:

Anterior mediastinal tumor
Journal Article
PET/CT
Primary mediastinal lymphoma
Thymic malignancy
Thymic neoplasm

Anmerkungen:

Date Revised 27.02.2024

published: Print-Electronic

Citation Status Publisher

doi:

10.1007/s00595-024-02801-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369017277