Abstract:
:We present 783 surgical resections of typical and atypical carcinoid tumors of the lung identified in the pathology files of 20 different pathology departments. All cases were critically reviewed for clinical and pathological features and further correlated with clinical outcomes. Long-term follow-up was obtained in all the patients and statistically analyzed to determine significance of the different parameters evaluated. Of the histopathological features analyzed, the presence of mitotic activity of 4 mitoses or more per 2 mm2, necrosis, lymphatic invasion, and lymph node metastasis were identified as statistically significant. Tumors measuring 3 cm or more were also identified as statistically significant and correlated with clinical outcomes. Based on our analysis, we consider that the separation of low- and intermediate-grade neuroendocrine neoplasms of the lung needs to be readjusted in terms of mitotic count as the risk of overgrading these neoplasms exceeds 10% under the current criteria. We also consider that tumor size is an important feature to be considered in the assessment of these neoplasms and together with the histological grade of the tumor offers important features that can be correlated with clinical outcomes.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Moran CA,Lindholm KE,Brunnström H,Langman G,Jang SJ,Spagnolo D,Chai SM,Laycock A,Falconieri G,Pizzolitto S,de Pellegrin A,Medeiros F,Edmunds L,Catarino A,Cunha F,Ro J,Pina-Oviedo S,Torrealba J,Coppola D,Petersson Fdoi
10.1016/j.humpath.2020.02.005subject
Has Abstractpub_date
2020-04-01 00:00:00pages
98-109eissn
0046-8177issn
1532-8392pii
S0046-8177(20)30046-0journal_volume
98pub_type
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