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.
Define inbreeding: the interbreeding of closely related individuals especially to preserve and fix desirable characters ofâ¦ â inbreeding in a sentence the interbreeding of closely related individuals especially to preserve and fix desirable characters of and to eliminate unfavorable charactersâ¦