adrenocortical carcinoma with renal vein invasion in a woman with a horseshoe kidney

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ADRENOCORTICAL CARCINOMA WITH RENAL VEIN INVASION IN A WOMAN WITH A HORSESHOE KIDNEY MICHAEL A. WHITE AND KENNETH SHOCKLEY A 31-year-old woman presented with new-onset hypertension. After inadequate control with medications and one episode of urgent hyperten- sion, computed tomography of the abdomen was performed. A large left-sided adrenal mass, with a filling defect in the renal vein, in addition to a horseshoe kidney was discovered (Fig. 1). On physical examination, she was hirsute, but without signs of hypercortisolism or virilization. Her workup yielded an elevated 17 ketosteroid and dehydroepiandrosterone level. A working di- agnosis of left-sided adrenocortical carcinoma was made, and additional imaging was performed to evaluate for possible venous invasion before pro- ceeding to surgical removal. Computed tomography angiography of the ab- domen, with special attention to the inferior vena cava, demonstrated a large left adrenal mass with a filling defect seen within the renal vein to the level of its insertion at the inferior vena cava. Once again, a horseshoe kidney was visualized (Fig. 2). The patient underwent surgical removal by way of a chevron incision. The mass did not adhere to any adjacent structures, and the horseshoe kidney was not involved. At last follow-up, she was receiv- ing chemotherapy. Adrenocortical carcinoma is a rare endocrine malignancy, with an annual incidence of less than 2 cases per million. 1,2 The reported incidence of a horseshoe kidney is 0.25%, or about 1 in 400 people. 3 This is the first documented case of an From the Michigan State University-College of Osteopathic Med- icine Urologic Consortium, Metro Health Hospital of Grand Rap- ids, Grand Rapids, Michigan Reprint requests: Michael A. White, D.O., Department of Urol- ogy, Michigan State University-College of Osteopathic Medicine Urologic Consortium, Metro Health Hospital of Grand Rapids, 1919 Boston Southeast, Grand Rapids, MI 49506. E-mail: [email protected] Submitted: February 26, 2006, accepted (with revisions): June 1, 2006 FIGURE 2. Computed tomography angiography scan showing left-sided adrenal mass with tumor thrombus ex- tending into left renal vein; horseshoe kidney is caudad. FIGURE 1. Computed tomography scan showing left- sided adrenal mass with tumor thrombus extending into renal vein. Caudad to mass is horseshoe kidney (not shown). IMAGES IN CLINICAL UROLOGY © 2006 ELSEVIER INC. UROLOGY 68: 1119 –1120, 2006 • 0090-4295/06/$32.00 ALL RIGHTS RESERVED doi:10.1016/j.urology.2006.06.005 1119

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IMAGES IN CLINICAL UROLOGY

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ADRENOCORTICAL CARCINOMA WITH RENAL VEININVASION IN A WOMAN WITH A HORSESHOE KIDNEY

MICHAEL A. WHITE AND KENNETH SHOCKLEY

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31-year-old woman presented with new-onsethypertension. After inadequate control with

edications and one episode of urgent hyperten-ion, computed tomography of the abdomen waserformed. A large left-sided adrenal mass, with alling defect in the renal vein, in addition to aorseshoe kidney was discovered (Fig. 1).On physical examination, she was hirsute, butithout signs of hypercortisolism or virilization.er workup yielded an elevated 17 ketosteroid

nd dehydroepiandrosterone level. A working di-gnosis of left-sided adrenocortical carcinoma wasade, and additional imaging was performed to

valuate for possible venous invasion before pro-eeding to surgical removal.Computed tomography angiography of the ab-

omen, with special attention to the inferiorena cava, demonstrated a large left adrenal massith a filling defect seen within the renal vein to

he level of its insertion at the inferior vena cava.nce again, a horseshoe kidney was visualized

Fig. 2).The patient underwent surgical removal by way

f a chevron incision. The mass did not adhere tony adjacent structures, and the horseshoe kidneyas not involved. At last follow-up, she was receiv-

ng chemotherapy.Adrenocortical carcinoma is a rare endocrinealignancy, with an annual incidence of less thancases per million.1,2 The reported incidence ofhorseshoe kidney is 0.25%, or about 1 in 400eople.3 This is the first documented case of an

rom the Michigan State University-College of Osteopathic Med-cine Urologic Consortium, Metro Health Hospital of Grand Rap-ds, Grand Rapids, Michigan

Reprint requests: Michael A. White, D.O., Department of Urol-gy, Michigan State University-College of Osteopathic Medicinerologic Consortium, Metro Health Hospital of Grand Rapids,919 Boston Southeast, Grand Rapids, MI 49506. E-mail:[email protected]: February 26, 2006, accepted (with revisions): June

, 2006 t

2006 ELSEVIER INC. ULL RIGHTS RESERVED

IGURE 2. Computed tomography angiography scanhowing left-sided adrenal mass with tumor thrombus ex-

IGURE 1. Computed tomography scan showing left-ided adrenal mass with tumor thrombus extending intoenal vein. Caudad to mass is horseshoe kidney (not

ending into left renal vein; horseshoe kidney is caudad.

ROLOGY 68: 1119–1120, 2006 • 0090-4295/06/$32.00doi:10.1016/j.urology.2006.06.005 1119

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drenocortical carcinoma discovered in conjunc-ion with a horseshoe kidney.

REFERENCES1. Brennan MF: Adrenocortical carcinoma. Cancer 37:

48–365, 1987. 1

120

2. National Cancer Institute: Third National Cancer Surveyncidence Data. Bethesda, National Cancer Institute, 1975, pp85–787.3. Bauer SB: Anomalies of the upper urinary tract, inalsh PC, Retik AB, Vaughan ED, et al (Eds): Campbell’s

rology, 8th ed. Philadelphia, WB Saunders, 2002, pp

885–1924.

UROLOGY 68 (5), 2006