Although pulmonary gangrene is uncommon in early life, numerous cases appear in the literature. It is more frequent in children than the analogous condition of pulmonary abscess; for in reviewing the literature on these subjects, one discovers more instances of gangrene than of the latter affection. J. Renault1 states that one case is seen in children or adolescents to six or seven in adults, and in the Children's Hospital, Philadelphia, only one case is recorded between the years 1896 and 1906. Henoch5 affirms, on the other hand, that children suffer more than older persons.
The majority of the cases in early life occur between 2 and 16 years of age, yet many instances are recorded as having occurred at a still earlier period. Thus, Bednar (Renault1) saw the disease at two and three months; Steiner and Neuretter (Renault1) at one and four months; while Kohts (Renault