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Multicystic Kidney: ASonographic Pattern 1
Ultrasound
Sheldon B. Bearman, M.D., Peter L. Hine, and Roger C. Sanders, B. M., M.R.C.P., F.F.R.
Preoperative B-mode ultrasonography was performed on 7 infants who subsequently were surgically proved to have multicystic kidney disease. Five of the 7 showed a characteristic pattern consisting of a predominantly cystic mass containing septa which divided it into cysts of varying sizes. It is concluded thatultrasound is a reliable method of detecting unilateral multicystic disease of the kidney. INDEX TERMS: Infants, Newborn, urinary tract. Kidneys, cysts. Kidney .Neoplasms, ultrasound diagnosis Radiology 118:685-688, March 1976
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ULTICYSTIC RENAL DYSPLASIA is the most common abdominal mass in the first week of life. Radiologic evaluation of such patients has consisted of excretory urography, retrograde pyelography and aortography. B-scan ultrasonography has been used at this institution to evaluate 7 patients with multicystic kidney disease. The technique provides more specific diagnostic information than alternative invasive procedures.
mass on the initial newborn physical examination. The others were discovered within the first five days of life. This is consistent with the experience of Griscom (5), who found that the vast majority of multicystic kidneys are found early in the neonatal period. Only one infant had a low birth weight (less than 2500 grams). None of the patients had symptoms pertaining to abdominal mass, and all had negative urinalyses. In one instance, transillumination of the mass was negative, while in 4 others it was positive. Of interesting but uncertain significance is the fact that in 3 cases, the initial examiner palpated the mass separate from the kidney. Two of the infants had other congenital abnormalities (TABLE I). All of the patients were initially evaluated roentgenographically by excretory urography (3-4 ml/kg). In each case, no excretion was detected on the side of the mass and the contralateral kidney was interpreted as normal. In the one patient in whom retrograde pyelography was performed, the proximal ureter was not visual-
MATERIAL During a 23-month period, 7 neonatal patients at the Johns Hopkins Hospital were proved at surgery to have unilateral multi cystic renal dysplasia. All had preoperative excretory urography and B-scan ultrasonography; one infant underwent retrograde pyelography and another abdominal aortography (TABLE I). Of the 7 patients, 3 were noted to have an abdominal Table I:
Patient Data
Sex
Birth Weight (grams)
G.D
M
4536
5 days
None
D. S.
F
2790
1 day
None
K. H.
M
3260
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Multicystic Kidney: ASonographic Pattern 1
Ultrasound
Sheldon B. Bearman, M.D., Peter L. Hine, and Roger C. Sanders, B. M., M.R.C.P., F.F.R.
Preoperative B-mode ultrasonography was performed on 7 infants who subsequently were surgically proved to have multicystic kidney disease. Five of the 7 showed a characteristic pattern consisting of a predominantly cystic mass containing septa which divided it into cysts of varying sizes. It is concluded thatultrasound is a reliable method of detecting unilateral multicystic disease of the kidney. INDEX TERMS: Infants, Newborn, urinary tract. Kidneys, cysts. Kidney .Neoplasms, ultrasound diagnosis Radiology 118:685-688, March 1976
•
· M
ULTICYSTIC RENAL DYSPLASIA is the most common abdominal mass in the first week of life. Radiologic evaluation of such patients has consisted of excretory urography, retrograde pyelography and aortography. B-scan ultrasonography has been used at this institution to evaluate 7 patients with multicystic kidney disease. The technique provides more specific diagnostic information than alternative invasive procedures.
mass on the initial newborn physical examination. The others were discovered within the first five days of life. This is consistent with the experience of Griscom (5), who found that the vast majority of multicystic kidneys are found early in the neonatal period. Only one infant had a low birth weight (less than 2500 grams). None of the patients had symptoms pertaining to abdominal mass, and all had negative urinalyses. In one instance, transillumination of the mass was negative, while in 4 others it was positive. Of interesting but uncertain significance is the fact that in 3 cases, the initial examiner palpated the mass separate from the kidney. Two of the infants had other congenital abnormalities (TABLE I). All of the patients were initially evaluated roentgenographically by excretory urography (3-4 ml/kg). In each case, no excretion was detected on the side of the mass and the contralateral kidney was interpreted as normal. In the one patient in whom retrograde pyelography was performed, the proximal ureter was not visual-
MATERIAL During a 23-month period, 7 neonatal patients at the Johns Hopkins Hospital were proved at surgery to have unilateral multi cystic renal dysplasia. All had preoperative excretory urography and B-scan ultrasonography; one infant underwent retrograde pyelography and another abdominal aortography (TABLE I). Of the 7 patients, 3 were noted to have an abdominal Table I:
Patient Data
Sex
Birth Weight (grams)
G.D
M
4536
5 days
None
D. S.
F
2790
1 day
None
K. H.
M
3260
