Robert L. Lebowitz, M.D. Children' s Hospital, Harvard Medical School Boston, Massachusetts

Young woman who was born with the cloacal malformation. A recent supine plain film of the abdomen showed what was thought to be a staghorn calculus. (Figure 1) Ultrasonography showed some minor shadowing foci but nothing to suggest a large calculus. (Figure 2) An upright film then showed a horizontal "fluid level," suggesting the diagnosis of milk of calcium. (Figure 3) An IVP suggested that the milk of calcium was in a peripelvic cyst or cysts. (Figure 4) She was asymptomatic.

References:
Melekos, et al. Milk of calcium masquerading as renal calculi. Eur J Rad 1998; 28:62-66.
 
 

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