PMID- 10921719 OWN - NLM STAT- MEDLINE DCOM- 20000822 LR - 20220321 IS - 0003-4975 (Print) IS - 0003-4975 (Linking) VI - 70 IP - 1 DP - 2000 Jul TI - Prognostic factors in neuroendocrine lung tumors: a Spanish Multicenter Study. Spanish Multicenter Study of Neuroendocrine Tumors of the Lung of the Spanish Society of Pneumonology and Thoracic Surgery (EMETNE-SEPAR). PG - 258-63 AB - BACKGROUND: This study examines the experience of the Spanish Multicenter Study of Neuroendocrine Tumors of the Lung through the clinical data and behavior of patients treated for this pathologic process. METHODS: From 1980 to 1997, 361 cases of neuroendocrine carcinomas (NEC) were treated surgically. Patients were enrolled in a protocol using the pathologic and follow-up reports. According to Dreslers' criteria, the cases were segregated into grade 1 (typical carcinoid), grade 2 (atypical carcinoid), grade 3 large cell type, and grade 3 small cell type. Several variables were reviewed in all patients. Statistical analysis was performed to determine whether clinical characteristics and differentiation were associated with significant differences in the prognosis. RESULTS: A total of 261 cases of NEC were identified with grade 1, 43 with grade 2, and with grade 3: 22 of large and 35 of small cells. Five-year survival for different grades was as follows: grade 1, 96%; 2, 72%; 3 large cell type, 21%; and 3 small cell type, 14%. When a comparative analysis between typical and atypical carcinoids was performed a significant difference for mean age, tumor size, nodal metastases, and recurrence was observed. However, female sex, nodal metastases, and recurrence rate differed between atypical carcinoids and grade 3 NEC of large cells. A difference in recurrence rate was found between patients with both types of grade 3 NEC. CONCLUSIONS: The progressive deterioration of tumor organization highlights that neuroendocrine tumors constitute a continuous spectrum. A careful observation of pathologic findings is necessary to individualize their prognostic factors. FAU - Garcia-Yuste, M AU - Garcia-Yuste M AD - Services of Thoracic Surgery and Pathology, University Hospital, Valladolid, Spain. FAU - Matilla, J M AU - Matilla JM FAU - Alvarez-Gago, T AU - Alvarez-Gago T FAU - Duque, J L AU - Duque JL FAU - Heras, F AU - Heras F FAU - Cerezal, L J AU - Cerezal LJ FAU - Ramos, G AU - Ramos G LA - eng PT - Journal Article PT - Multicenter Study PL - Netherlands TA - Ann Thorac Surg JT - The Annals of thoracic surgery JID - 15030100R SB - IM MH - Adult MH - Aged MH - Carcinoid Tumor/mortality/pathology/surgery MH - Carcinoma, Neuroendocrine/mortality/pathology/surgery MH - Carcinoma, Small Cell/mortality/pathology/surgery MH - Female MH - Humans MH - Lung Neoplasms/mortality/pathology/*surgery MH - Male MH - Middle Aged MH - Neuroendocrine Tumors/mortality/pathology/*surgery MH - Prognosis MH - Spain MH - Survival Rate EDAT- 2000/08/02 11:00 MHDA- 2000/08/29 11:01 CRDT- 2000/08/02 11:00 PHST- 2000/08/02 11:00 [pubmed] PHST- 2000/08/29 11:01 [medline] PHST- 2000/08/02 11:00 [entrez] AID - S0003497500013692 [pii] AID - 10.1016/s0003-4975(00)01369-2 [doi] PST - ppublish SO - Ann Thorac Surg. 2000 Jul;70(1):258-63. doi: 10.1016/s0003-4975(00)01369-2.