TY - JOUR T1 - Pulmonary carcinoid tumours: a comparative regional study. JF - Journal of Clinical Pathology JO - J Clin Pathol SP - 1100 LP - 1109 DO - 10.1136/jcp.32.11.1100 VL - 32 IS - 11 AU - T Cooney AU - E C Sweeney AU - D Luke Y1 - 1979/11/01 UR - http://jcp.bmj.com/content/32/11/1100.abstract N2 - Twenty-two pulmonary carcinoid tumours (18 central, 4 peripheral) were seen in this department over an 11-year period. The majority of the tumours displayed a mixed pattern on microscopic examination, and cell-nest formation was a prominent feature in sixteen. The findings are at variance with the results of a similar series reported from Japan and suggest that there is regional variation in the tumour pattern of pulmonary carcinoids. Various aspects of the histopathology are discussed, and a causal relationship between ossification of bronchial cartilage in these tumours and locally produced calcitonin is postulated. ER -