Urologic radiology

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Nonvisualized (“phantom”) renal calyx: Causes and radiological approach to diagnosis

  • Richard E. Brennan
  • Howard M. Pollack


A calyx which fails completely to opacify on excretory urography (phantom calyx) is often the harbinger of serious underlying renal disease. Causes of a phantom calyx include tuberculosis, tumor, calculus, ischemia, trauma, and congenital anomaly. The pathologic basis for the radiographic findings in each of these entities is described and an overall approach to diagnosis is set forth.

Key words

Calyx, disease of Kidney Excretory urography 


  1. 1.
    Kollins SA, Hartman GW, Carr DT, Segura JW, Hattery RR: Roentgenographic findings in urinary tract tuberculosis: a ten year review.Am J Roentgenol 121:487–499, 1974Google Scholar
  2. 2.
    Gay R: Focal exclusions in renal tuberculosis.Acta Radiol 32:129–144, 1949CrossRefPubMedGoogle Scholar
  3. 3.
    Barrie HJ, Kerr WK, Gale GL: The incidence and pathogenesis of tuberculous strictures of the renal pelvis.J Urol 98:584–589, 1967PubMedGoogle Scholar
  4. 4.
    Hartman GW, Segura JW, Hattery RR: Infectious diseases of the genitourinary tract. In DM Witten, GH Myers, DC Utz (eds): Emmett’s Clinical Urography: An Atlas and Textbook of Roentgenologic Diagnosis, Philadelphia: W.B. Saunders, 1977, pp 809–949Google Scholar
  5. 5.
    Silver TM, Kass EJ, Thornbury JR, Konnak JW, Wolfman MG: The radiological spectrum of acute pyelonephritis in adults and adolescents.Radiology 118:65–71, 1976PubMedGoogle Scholar
  6. 6.
    Murchinson RJ, Nicholson TC: Absent collecting system sign.Urology 10:343, 1977CrossRefGoogle Scholar
  7. 7.
    Levin DC, Gordon D, Kikhabwala M, Becker JA: Reticular neovascularity in malignant and inflammatory renal masses.Radiology 120:61–68, 1976PubMedGoogle Scholar
  8. 8.
    Cope JR, Roylance J, Gordon IRS: The radiological features of Wilm’s tumour.Clin Radiol 23 (3):331–339, 1972CrossRefPubMedGoogle Scholar
  9. 9.
    Heitzman ER, Perchik L: Radiographic features of renal infarction: review of 13 cases.Radiology 76:39–46, 1961PubMedGoogle Scholar
  10. 10.
    Paul GJ, Stephenson TF: The cortical rim sign in renal infarction.Radiology 122:338, 1977PubMedGoogle Scholar
  11. 11.
    Griscom NT, Kroeker MA: Visualization of individual papillary ducts (ducts by Bellini) by excretory urography in childhood hydronephrosis.Radiology 106:385–389, 1973PubMedGoogle Scholar
  12. 12.
    Ambos MA, Bosniak MA: Tomography of the kidney bed as an aid in differentiating renal pelvic tumor and stone.Am J Roentgenol 125:331–336, 1975Google Scholar
  13. 13.
    Pollack HM, Arger PH, Goldberg BB, Mulholland SG: Ultrasonic detection of nonopaque renal calculi.Radiology 127:233–237, 1978PubMedGoogle Scholar
  14. 14.
    Webb JAW, Fry IK, Charlton CAC: An anomalous calyx in the mid-kidney: an anatomical variant.Br J Radiol 48:674–677, 1975PubMedCrossRefGoogle Scholar
  15. 15.
    Friedland GW, Filly RA: Appearing and disappearing calyces.Pediatr Radiol 1 (4):237–240, 1973CrossRefPubMedGoogle Scholar
  16. 16.
    Dure’-Smith P: In RE Miller, J Skucas (eds):Radiographic Contrast Agents. Baltimore: University Park Press, 1977, p 297Google Scholar

Copyright information

© Springer-Verlag 1979

Authors and Affiliations

  • Richard E. Brennan
    • 1
  • Howard M. Pollack
    • 2
  1. 1.Department of RadiologyThomas Jefferson University HospitalPhiladelphiaUSA
  2. 2.Department of RadiologyHospital of the University of PennsylvaniaPhiladelphiaUSA

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