Physical diagnosis, including diseases of the thoracic and abdominal organs : a manual for students and physicians .. . ibed. In the departures from normal above mentioned thereis a certain want of symmetry between the two sides;but, as the changes are bilateral, they are generally class-ified as symmetrical deformities. The chest also presents unilateral or asymmetricalenlargement and retraction, which may affect an entireside or a portion only. The unilateral deformities maybe dependent upon spinal curvatures, congenital andoccupation deformities, swelling or oedema of soft parts-,or to intr
Physical diagnosis, including diseases of the thoracic and abdominal organs : a manual for students and physicians .. . ibed. In the departures from normal above mentioned thereis a certain want of symmetry between the two sides;but, as the changes are bilateral, they are generally class-ified as symmetrical deformities. The chest also presents unilateral or asymmetricalenlargement and retraction, which may affect an entireside or a portion only. The unilateral deformities maybe dependent upon spinal curvatures, congenital andoccupation deformities, swelling or oedema of soft parts-,or to intrathoracic changes. Unilateral Enlargements.—Unilateral enlargements aremost readily seen when the patient is viewed from the INSPECTION. 53 front. On the affected side the clavicle is higher; thesupraclavicular space may be deeper or shallower, ac-cording to the cause. The mammae may he displacedoutwards, with widening of the intercostal spaces, whichmay be shallow or bulging, according to the conditionpresent. From behind the spine is curved toward theenlarged side, and the scapula is carried outwards. Fig. ?30 Unilateral enlargement of chest (right side) artificially produced byinjecting air into the right pleural cavity. Unbroken line: outlinebefore injection. Broken line: outline after moderate line: outline after extreme distension. Figures at bottom ofvertical line indicate the anteroposterior diameter; along horizontalline, transverse semi-diameter; remaining figures, right and left semi-circumference. (Gee.) Movement on the affected side may be increased, dimin-ished or absent. (Fig. 19.) Unilateral enlargementmay be due to (1) Compensating emphysema. In this conditionthe lung of the enlarged side is performing more workthan normal, and is receiving not only its own quota ofair, but also a part of that which should be received by 54 TEE RESPIRATORY SYSTEM. the opposite side. When due to this cause, the increasedaction of the muscles of inspirati
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