hematuria (3 cases). In MsPGN, only 1 case among 11 children showed recurrent gross
hematuria.
In purpura nephritis, only 1 case among 15 children in foca proliferative
glomerulonephritis showed recurrent gross hematuria. In MPGN, recurrent gross
hematuria was also demonstrated in 1 case.
[영문]
Recurrent gross hematuria is a condition in which macroscopic hematuria occures repeatedly for several days at interval of a few weeks, months or years. Meanwhile, persistent macroscopic hematuria is a condition in which microscopic hematuria
persists for a few months. According to Northway, there areabout 49 diseases in which henaturla is manifested in children.
Among a number of renal diseases causing hematuria chil-dhood, mort common cause is acute post-streptococcal glomeru-lonephritis in Korea. There are, however, certain diseases in which the diagnosis is possible only by renal biopsy.
Fourty nine cases with renal diseases, were diagnosed by renal biopsy, which were causing persistent or recurrent hematuria.
The pathologic findings, clinical and laboratory significance from these patients were analyzed.
Male patients were 32 and female were 17, of which ratio was 1.9 : 1. In age distribution, age group between 7 and 10 years was most predominant which was 57% of total patients. The mumber of patients with purpura nephritis were 17, which were most common cause of persistent or recurrent hematuria group
Persistent or recurrent microscopic hematuria was demons-trated in 35 cases and predominant in H-SPN (16 cases), MsPGN(1O oases) and APSGW (5 cases).
Recurrent gross hematuria was demonstrated in 14 cases and predominant in IgA nephropathy (4 cases), benign recurrent hematuria (4 cases) and benign familial hematuria (3 cases). In MsPGN, only 1 case among 11 children showed recurrent gross
hematuria.
In purpura nephritis, only 1 case among 15 children in foca proliferative glomerulonephritis showed recurrent gross hematuria. In MPGN, recurrent gross hematuria was also demonstrated in 1 case.