Diseases of the chest and the principles of physical diagnosis . lateral involvement is the most frequent while in tuberculouscases unilateral and apical involvement is the most common. Apicalinvolvement is also quite common in cases of pneumoconiosis. McCraeand Funk^ have reported 5 cases of apical bronchiectasis, 4 of whichwere associated with tuberculosis (see Fig. 222). Two main varieties of bronchiectasis are recognized, namely, thecylindrical and the globular or sacculated. 1 Jour. Am. Med. Assoc, Oct. 7, 1916. DISEASES OF THE BRONCHI 291 In the cylindrical form the dilatation is uniform
Diseases of the chest and the principles of physical diagnosis . lateral involvement is the most frequent while in tuberculouscases unilateral and apical involvement is the most common. Apicalinvolvement is also quite common in cases of pneumoconiosis. McCraeand Funk^ have reported 5 cases of apical bronchiectasis, 4 of whichwere associated with tuberculosis (see Fig. 222). Two main varieties of bronchiectasis are recognized, namely, thecylindrical and the globular or sacculated. 1 Jour. Am. Med. Assoc, Oct. 7, 1916. DISEASES OF THE BRONCHI 291 In the cylindrical form the dilatation is uniform, the smaller bronchiretaining the size of the larger division instead of diminishing in bronchi tend to progressively increase in size toward their terminalextremities, thus giving rise to an appearance resembling that, of thefingers of a glove (Wilson Fox). This type of the disease is well illustratedin Fig. 222. A subvariety of the cylindrical form is the fusiform type, inwhich the dilated bronchi taper somewhat toward their terminal Fig. 224.—An unusual example of fibroid phthisis with extensive dilatation of the bronchi. {Pennsylvania Hospital.) The sacculated type shows the most extreme degree of this form the tube may dilate at a single point, forming a pseudo-cavity. A number of these may occur in one tube, the caliber of the inter-vening portions remaining approximately normal. The sacculationmay involve only one side of the tube, the remainder of the circumferenceretaining its normal shape. A subvariety of the sacculated form isthat in which the affected bronchus presents a number of bead-like dila-tations which have been Hkened to a rosary (Fox). 292 DISEASES OF THE BRONCHI, LUNGS, PLEURA, AND DIAPHRAGM The cylindrical type of dilatation is usually found in the larger andmedium-sized tubes. While the sacculated type may occur in thelarger tubes, it is most commonly encountered in the terminal types of dilatation ma
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