Stefano MartellaVisnu LohsiriwatDaniel Meirelles BarbalhoPaolo Della VignaLuca BottiglieriTito BrambulloAlessandra GottardiMario RietjensJean Yves PetitIstituto Europeo di OncologiaMahidol University2018-06-112018-06-112012-02-01Surgery Today. Vol.42, No.3 (2012), 259-26314362813094112912-s2.0-84857646554https://repository.li.mahidol.ac.th/handle/20.500.14594/14997Purpose: Finding an intrathoracic or axillary mass in a breast cancer patient should raise suspicion of a pulmonary or mediastinal nodal metastasis or axillary recurrence. Surprisingly, noncaseating epithelioid cell granuloma can be found in this type of lesion, as in sarcoidosis or a sarcoid-like reaction. Methods: This series included eight breast cancer patients in whom a late sarcoid-like reaction developed: as an intrathoracic lesion in six, and as an ipsilateral axillary lesion in two. The latency period from oncological surgery to the diagnosis of sarcoidosis was 40 months and the average follow-up after the diagnosis of sarcoidosis was 63.38 months. Results: None of the patients suffered relapse or oncological events during the period of this study. Conclusion: To avoid misdiagnosis and overtreatment, pathological examination should always be carried out. We do not recommend any specific treatment for sarcoidosis in a breast cancer patient, but routine oncological follow-up is appropriate. A larger series with statistical analysis is necessary to evaluate the prognosis. © 2011 Springer.Mahidol UniversityMedicineArticleSCOPUS10.1007/s00595-011-0084-6