[Pulmonary hydatid cyst: unusual double apical location. About a case].

Hydatid cyst (KH) is still endemic in several areas of Morocco. Pulmonary involvement is a consequence of liver disease. Hydatid cyst is characterized by diverse anatomical and clinical presentations and by the possibility of multiple locations within the lung parenchyma, predominantly involving pulmonary bases.

[Pulmonary Langerhans' cell histiocytosis (PLCH) revealed by pneumothorax: about a case].

Langerhans cell histiocytosis is a rare disease of unknown etiology characterized by the infiltration of Langerhans cells in one or more organs. It has a polymorphic clinical presentation. We report the case of Mr R.