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We report the case of a 61-year-old man with a pulmonary nodule discovered while staging the metastasis of a squamous cell carcinoma. No primary cancer was found. Histological examination of the resected specimen (lingula) was in favor of IgG4-related inflammatory pseudotumor. Histological criteria were described in 2012, combining a dense lymphoplasmacitic infiltrate rich in IgG4-positive plasma cell, storiform fibrosis and obliterative phlebitis. IgG4/IgG plama cell ratio>40 % is mandatory for histological diagnosis of IgG4-related disease. This is a rare and often underdiagnosed disease. Diagnostic criteria are now defined and consensual, combining clinical signs, biology and histology., (Copyright © 2016 Elsevier Masson SAS. All rights reserved.)

We report a case of placental metastasis of melanoma in a 30-year-old woman, without fetal involving, the child being healthy after 5 months of follow-up. Placental or fetal metastasis of maternal cancer are rare, but melanoma is remarkable by its metastatic potential among the cancers of the woman in age to procreate. Thirty cases of placental or foetal metastasis of melanoma have been reported. The fetal involvement seems to be always associated with at least a microscopic invasion of the placenta, that is why systematic microscopic examination of the placenta in case of maternal cancer needs to be encouraged. The other predictive factors of fetal involvement seem multiple and complex. The follow-up of the children arisen from a mother affected by a cancer must be close even if, in case of metastasis in children, the prognosis is very poor., (Copyright 2009 Elsevier Masson SAS. All rights reserved.)