. The diseases of infancy and childhood. oft, vascular, and spongy; in older children they becomefirm, dense, and more fibrous. Their appearance is well shown in Adenoid vegetations are associated with hypertrophy of the faucialtonsils in about one-third of the cases. Growths large enough to causedecided nasal obstruction may in time produce changes in the facialbones amounting to positive deformity. The bony palate may be dome-shaped or even acutely arched; the dental arch of the upper jaw be-comes almost V-shaped. Deformities of the thorax also occur, which willbe described with the
. The diseases of infancy and childhood. oft, vascular, and spongy; in older children they becomefirm, dense, and more fibrous. Their appearance is well shown in Adenoid vegetations are associated with hypertrophy of the faucialtonsils in about one-third of the cases. Growths large enough to causedecided nasal obstruction may in time produce changes in the facialbones amounting to positive deformity. The bony palate may be dome-shaped or even acutely arched; the dental arch of the upper jaw be-comes almost V-shaped. Deformities of the thorax also occur, which willbe described with the symptoms. ADENOID GROWTHS 295 Etiology.—Hereditary influences certainly play some part in theproduction of this condition. Frequently every one of a large familyof children may be affected, and often the parents have suffered fromthe same condition. While infants are born with adenoid tissue in thenasopharynx, it is in almost all instances small in amount and seldomincreases markedly in size until after several months. What causes the. Fig. 29.—Adenoid Vegetations, Natural Size. (1) From child eight months old;(2) from child twenty-two months old; (3) from child two and one-half years old;(4) from child two and one-half years old; (5) from child three years old. With theexception of (5) all were removed with a single sweep of the curette. Although thegrowths represented are somewhat larger than the average for the ages mentioned,just such ones are constantly met with in practice. abnormal development of this tissue it is hard to say. Adenoid growths-are most common in damp, changeable climates. Their first symptomsoften follow an attack of measles, scarlet fever or diphtheria. Therepeated attacks of rhinopharyngitis associated with adenoid growths aremore often a result than a cause of the condition. Czerny believes that the excessive growth of tissue in the rhino-pharynx is in many instances the result of overfeeding. It is certainlytrue that adenoid growths are much more
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