May Be Caused by

Abdominal abscess

Adrenal calcification

Appendiceal mucocele

Appendicolith

Armillifer infestation of mesentery

Armillifer infestation of peritoneum

Arterial calcification

Bowel atresia

Bowel duplication

Calculus in Meckel diverticulum

Calculus in urachal cyst

Chronic pancreatitis

Congenital syndromes

Congenital transplacental infection

Contrast medium

Cyst of kidney

Cyst of mesentery

Cyst of ovary

Cyst of pancreas

Cyst of spleen

Cysticercosis of abdominal wall

Cysticercosis of back

Dermoid

Enterolith

Fetus in fetu

Foreign material

Gallstone

Guinea worm infection

Hamartoma of liver

Heavy metal

Hemangioma

Hemangioma of liver

Hemochromatosis of liver

Hepatoblastoma

Hepatocellular carcinoma

Histoplasmosis in liver

Histoplasmosis in lymph node

Histoplasmosis in peritoneum

Histoplasmosis in spleen

Hydatid cyst

Intestinal obstruction

Ischemic infarct or necrosis of liver

Lymphangioma

Lympholith

Meconium peritonitis

Medication

Metastatic calcinosis

Metastatic neuroblastoma

Neuroblastoma

Old hematoma in liver

Old hematoma in retroperitoneum

Old hematoma in spleen

Phlebolith

Pica

Pill ingestion

Primary hyperparathyroidism

Renal vein thrombosis

Retroperitoneal neoplasm

Ruptured hydrometrocolpos with plastic peritonitis

Secondary hyperparathyroidism

Teratoma

Thromboembolism of portal vein

Thrombosis of inferior vena cava

Tuberculosis in liver

Tuberculosis in lymph node

Tuberculosis in peritoneum

Tuberculosis in spleen

Tuberculous psoas abscess

Urinary tract calcification