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Benign neoplasm of the lung is rare, and pulmonary hamartoma is the most common form of benign neoplasm of the lung. Most pulmonary hamartomas are parenchymal hamartomas, and endobronchial hamartomas are very rare and usually occur as a single mass. We report a case of a 55-year-old man presenting with multiple endobronchial chondroid hamartomas that had not been confirmed preoperatively. The patient received bilobectomy, and the postoperative course was uneventful. There was no evidence of recurrence or complications during the 6-month follow-up period. Reports of multiple endobronchial chondroid hamartomas are rare in the literature, and the awareness of this form of benign disease is important in the differential diagnosis of pulmonary neoplasms. [Copyright &y& Elsevier]

Metal-plastic hybrids are emerging as a new challenge in multi-material 3D printing. Here, we provide a novel printing method for strategically bonding and printing metal-plastic hybrids using dual lasers with different wavelengths in a single integrated process. This bottom-up process enables three-dimensional freeform deposition while creating an ideal metal-plastic interface. In particular, our research has shown that the strategic selection of a laser with high energy absorption efficiency for the target material is a key technology for material hybridization. It was revealed that the laser, when irradiated directly onto the interface, partially crosslinks the plastic to form dense phases and induces a chemical reaction with oxygen active species on the metal surface, e.g., an intermediate oxide layer of Al–O–C, leading to the formation of a strong metal-plastic interface. Interestingly, this laser-induced metal-plastic interface, sophisticatedly controlled at the monolayer thickness level, exhibited a distinctive near-interface failure mechanism that developed crack paths along the near interface. Moreover, the competition between crack propagation and pore coalescence in each dense and porous printed layer formed a synergetic interphase, resulting in strong and tough mechanical functions. Our findings can guide the development of metal-plastic hybrids for a variety of industrially important applications. [ABSTRACT FROM AUTHOR]