Re-evaluation of histopathological factors for the outcome of salivary duct carcinoma patients: A multi-institutional retrospective study of 240 cases in a Japanese cohort.

IF 2.7 2区医学 Q2 PATHOLOGY

Human pathology Pub Date : 2025-02-21 DOI:10.1016/j.humpath.2025.105736

Kimihide Kusafuka, Eiji Nakatani, Satoshi Baba, Yoshifumi Arai, Matsuyoshi Maeda, Koji Yamanegi, Takayuki Murase, Hiroshi Inagaki, Yoshiro Otsuki, Kensuke Suzuki, Hiroshi Iwai, Yoshiaki Imamura, Shoji Yamanaka, Ichiro Ito, Midori Sato, Morito Kurata, Tsutomu Daa, Tomonori Kawasaki, Ryo Kawata, Yuri Tachibana, Junya Fukuoka, Takashi Suzuki, Hidetaka Yamamoto, Kazumori Arai, Makoto Suzuki

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引用次数: 0

Abstract

Aims: Salivary duct carcinoma (SDC) is a relatively common, high-grade salivary gland malignancy that can often occur as a carcinomatous component of carcinoma ex pleomorphic adenoma (CXPA). This study aimed to elucidate the histological factors which are related to the outcome of SDC.

Methods and results: We conducted a comprehensive histological review of 240 SDC cases and we analyzed the association between the histomorpholgical parameters and the clinical outcomes to identify new histological prognostic factors. The majority of cases involved the parotid glands (n=197 cases). SDC showed a marked male predilection (M/F=5.3:1), and the median age was 66 years-old. This study included 110 de novo cases and 130 CXPA cases. Multivariate analysis revealed that only the pathological stage was significantly associated with overall survival (OS), whereas previously reported histological parameters, such as poorly differentiated clusters, nuclear polymorphism, and mitotic index were not significantly associated with OS and progression-free survival (PFS). Vascular invasion (V [+]) was significantly associated with PFS, and lymphatic invasion was associated with late lymph node metastases. Even in the same pathological stage, V (+) cases always had the worse PFS than V (-) cases.

Conclusions: The histopathological review determined that as distant metastasis relapse was the most important prognostic factor in patients with SDC, V (+) status was also a significant outcome indicator.

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来源期刊

Human pathology 医学-病理学

CiteScore

5.30

自引率

6.10%

发文量

206

审稿时长

21 days

期刊介绍： Human Pathology is designed to bring information of clinicopathologic significance to human disease to the laboratory and clinical physician. It presents information drawn from morphologic and clinical laboratory studies with direct relevance to the understanding of human diseases. Papers published concern morphologic and clinicopathologic observations, reviews of diseases, analyses of problems in pathology, significant collections of case material and advances in concepts or techniques of value in the analysis and diagnosis of disease. Theoretical and experimental pathology and molecular biology pertinent to human disease are included. This critical journal is well illustrated with exceptional reproductions of photomicrographs and microscopic anatomy.