Clinical lectures on the principles and practice of medicine . -ous masses and puckerings so frequently observed at the apices of thelungs in persons advanced in life. The conclusion arrived at was, thatthe spontaneous arrestment of tubercle in its early stage occurred in theproportion of from one-third to one-half of all the individuals who dieafter the age of forty. The observations of Rogee and Boudet, made atthe Salpetriere and Bicetre Hospitals in Paris, amongst individuals47 738 DISEASES OP THE EESPIRATOEY SYSTEM. generally above the age of seventy, showed the proportion in such per-sons
Clinical lectures on the principles and practice of medicine . -ous masses and puckerings so frequently observed at the apices of thelungs in persons advanced in life. The conclusion arrived at was, thatthe spontaneous arrestment of tubercle in its early stage occurred in theproportion of from one-third to one-half of all the individuals who dieafter the age of forty. The observations of Rogee and Boudet, made atthe Salpetriere and Bicetre Hospitals in Paris, amongst individuals47 738 DISEASES OP THE EESPIRATOEY SYSTEM. generally above the age of seventy, showed the proportion in such per-sons to be respectively one-haif and four-fifths. That the cretaceous and calcareous concretions, accompanied withpuckerings, are really evidences of abortive tubercles, is established bythe following facts :— 1. A form of indurated and circumscribed tubercle is frequently metwith, gritty to the feel, which, on being dried, closely resembles cretaceousconcisions. 2. These concretions are found exactly in the same situations as - ? . I1- ; wF- - =:= ~ JP ~ HP. Fig. 460. tubercle. Thus they are most common in the apex, and in both frequently occur in the bronchial, mesenteric, and other lymphaticglands, and in the psoas muscles, or other textures which have been theseat of tubercular depositions, or scrofulous abscesses. 3. When the lung is the seat of tubercular infiltration throughout,whilst recent tubercle occupies the inferior portion, and older tubercle,and perhaps caverns, the superior, the cretaceous and calcareous concre-tions will be found at the apex. 4. A comparison of the opposite lungs will frequently show, thatwhilst on one side there is firm encysted tubercle, partly transformedinto cretaceous matter, on the other the transformation is perfect, andhas occasionally even passed into a calcareous substance of stonyhardness. 5. The seat of cicatrices admits of the same exceptions as the seatof tubercles. In one case, I have found the puckering and cicatrix in
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectmedicine, bookyear187
