Pericarditis as the first clinical manifestation of active tuberculosis in childhood is rare. A careful review of the literature failed to reveal the report of such a case diagnosed during life.
Waller1 reported a case in which postmortem examination showed that the pericarditis was tuberculous; tuberculous pericarditis as a postmortem observation is not a great rarity.2 Many cases of chronic phthisis reveal an adhesive pericarditis at autopsy, and in generalized miliary tuberculosis the pericardium is not infrequently involved along with other serous membranes. Norris3 collected data on 1,780 cases of tuberculosis from various hospitals; eighty-two cases of tuberculous pericarditis were found, thirty-two in which there were actual tubercles, and forty-nine in which tubercles or any other demonstrable etiology was not found. Machlachlan4 reviewed 975 autopsies in which 100 cases of pericardial involvement of one type or another were included; ten per cent of these were on