Moran CA, Lindholm KE, Brunnström H, et al. - Researchers explored 783 surgical resections of typical and atypical carcinoid tumors of the lung distinguished in the pathology files of 20 different pathology departments. They examined all cases for clinical and pathological features and further correlated with clinical outcomes. This study obtained long-term follow-up in all the individuals and statistically analyzed to ascertain the significance of the different parameters. They recognize that the separation of low and intermediate-grade neuroendocrine neoplasms of the lung requires to be readjusted in terms of mitotic count as the risk of over grading these neoplasms exceeds 10% under the current criteria. It was reported that tumor size is an important feature to be examined in the assessment of these neoplasms and together with the histological grade of the tumor offers important features that can be associated with clinical results.