Actinomycosis is a chronic suppurative and granulomatous disease characterized histologically by sulfur granules with extensive necrosis, fibrosis and sinus formation. Depending on the site of primary infection, actinomycosis is generally classified as cervicofacial, thoracic and abdominal type. The liver is known to be the primary site of infection in 15% with abdominal actinomycosis. The authors have experienced a case of liver abscess in a 24-year-old male. The sono-guided aspiration biopsy revealed findings of infiltration of neutrophils and characteristics sulfur granules by light microscopy. This case was thought to represent an instance of liver actinomycosis. Although there have been a lot of reports on actinomycosis of the liver in other countries, only 3 cases were reported in Korea.

Total 87 cases of children's glomerulonephritldes confirmed by renal b.jopsy and immunoelectron microscopy were analysed with densitometer and other radiologic methods.The results were as follows :1. In the total 87 cases of children 's glomerulonephritides, APSGN is the most prevalent disease.MSPGN , pupura nephritis, MLNS were followed in descending orders.2. They were more in male children (M:F = 2.3:1) 3. The size , width and cortical thickness of kidney were apt to be increased before the age of 10 years, but not helpful after the age of 10. Radiologic findings and densitometry findings:a. APSGN ; Pulmonary congestion or congestive heart fallure findin 뚱 were found in 69%b. MSPGN in plain chest film , and decreased excretory function in densitometry even though no morphologic abnorrriality in IVP.; Renal enlargement and cortical scallopings were main findings in IVP study.Excretory function is slight decreased in densitometry only.Pulmonary congestion was not evident.