Chest Radiology > Pathology > Atelectasis > General. Atelectasis is collapse or incomplete expansion of the lung or part of the lung. This is one of the most common findings on a chest x-ray. It is most often caused by an endobronchial lesion, such as mucus plug or tumor.
A Labradoodle, a crossbreed between a poodle and a retriever. A crossbreed or crossbred usually refers to an organism with purebred parents of two different breeds, varieties, or populations.
Inbreeding. Inbreeding is the mating among members of a family. It is an instrument in all livestock breeding to solidify traits, i.e. to firmly install them genetically. Usually, if the inbreeding is not too close, it is referred to as linebreeding (for instance uncle x niece, grandsire x granddaughter).nbreeding is the mating among members of a family. It is an instrument in all livestock breeding to solidify traits, i.e. to firmly install them genetically.