OBJECTIVE: This study aimed to investigate the benignancy of @entity14303 ( @entity14303 ), and to establish an appropriate management strategy. METHODS: @entity1 diagnosed with @entity14303 between January 2003 and December 2013 were analysed retrospectively. From January 2013 onwards, a simplified protocol, with consensus for the management of @entity14303 , was applied in our hospital. RESULTS: In total, 37 @entity1 were identified as having @entity14303 during the study period. Among them, 27 were enrolled prior to applying the new protocol. Among these @entity1 , extra diagnostic tests, in addition to chest radiography (CXR) and chest computed tomography (CT), were performed in 15 @entity1 (55.5%). In the pre-protocol decade, a total of 15 @entity1 (55.5%) were initially fasted and 16 (59.3%) were administered antibiotics. Mean hospital stay was 2.9 days (range, 0-5 days). No @entity1 developed complications during the hospital stay and outpatient follow up. Since the revised protocol was in practical use, 10 consecutive @entity1 with @entity14303 were enrolled and reviewed. No additional diagnostic imaging studies or procedures (except for CXR and @entity764 ) were performed in these @entity1 ; furthermore, diet was not restricted and prophylactic antibiotics were not prescribed. Mean hospital stay was 14.5   h (range, 1-34   h). No complications were observed in any of the @entity1 . CONCLUSIONS: Our management protocol (i.e. routine check of @entity764 without any additional diagnostic tests, no special treatment, and early discharge with short-term follow up) may be safe and feasible for the treatment of @entity14303 .

Is XXXX a truly benign entity?

@entity1 :: ('9606', 'Species') :: ['Patients', 'patients', 'patient'] @entity14303 :: ('MESH:D008478', 'Disease') :: ['primary spontaneous pneumomediastinum', 'PSP'] @entity764 :: ('MESH:D013898', 'Disease') :: ['chest CT']
@entity14303 :: (MESH:D008478,Disease) :: ['primary spontaneous pneumomediastinum']
