Inflammatory pseudotumor of the kidney: A case report

Tarhan, Fatih; Gül, Aylin; Karadayi, Nimet; Kuyumcuoğlu, Uğur

doi:10.1023/b:urol.0000034662.23919.0b

Cited by 26 publications

(30 citation statements)

References 12 publications

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“…Our search of the literature revealed only 22 cases, 2-23 and only three of these were of children. 4,5,15 Thus, to our knowledge the present case represents the fourth case of renal IMT in a child. A search of available literature reviews of pediatric IMT arising in the urinary system revealed only 13 cases including ours.…”

Section: Discussionmentioning

confidence: 78%

Inflammatory Myofibroblastic Tumor of the Kidney in a Child: Report of a Case

Boo

Kim

et al. 2006

Surg Today

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Inflammatory myofibroblastic tumor (IMT), also known as inflammatory pseudotumor, is an uncommon benign tumor that has been reported in various locations throughout the body, but rarely in the kidney. To our knowledge, only 22 cases of renal IMT have been described in the literature. Renal IMT in children is difficult to differentiate from a malignancy such as Wilms' tumor. We report a case of a 9-year old girl with a left renal mass mimicking malignancy on preoperative diagnostic images, which was pathologically revealed to be an IMT. We review the literature and discuss the pathophysiology and clinical features of this unusual tumor.

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Section: Discussionmentioning

confidence: 78%

Inflammatory Myofibroblastic Tumor of the Kidney in a Child: Report of a Case

Boo

Kim

et al. 2006

Surg Today

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“…For cases in which use of steroids is contraindicated, or there is a poor response to steroids, low-dose radiation therapy and chemotherapy is the treatment of choice. 1,3 Local recurrence developed in 25% of cases, and spontaneous remissions have been described, but IPTs fall into the category myofi broblastic sarcomas according to some authors. 3,4 Occurrence of an IPT in the kidney is rare; and to our knowledge only 52 cases have been described in the literature.…”

Section: Discussionmentioning

confidence: 98%

“…1,3 Local recurrence developed in 25% of cases, and spontaneous remissions have been described, but IPTs fall into the category myofi broblastic sarcomas according to some authors. 3,4 Occurrence of an IPT in the kidney is rare; and to our knowledge only 52 cases have been described in the literature. Patients with IPT usually present with fl ank pain, fever, and hematuria.…”

Section: Discussionmentioning

confidence: 98%

Inflammatory pseudotumor of the kidney with renal artery penetration

Nakamura¹,

Urashima²,

Nishihara³

et al. 2007

Radiat Med

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Inflammatory pseudotumor (IPT) is a quasineoplastic lesion that most commonly involves the lung and the orbit; kidney involvement is rare. We report a case of inflammatory pseudotumor of the kidney. The patient was a 61-year-old man who presented with no symptoms. Nonenhanced computed tomography (CT) demonstrated an ill-defined, isodensity mass measuring 3.5 cm in the lower portion of the left kidney. Contrast-enhanced CT showed that branches of the renal artery without encasement penetrated the tumor; there was a little enhancement in the mass on the arterial phase and homogeneous enhancement on the venous phase. On magnetic resonance imaging the mass showed intermediate signal intensity on T1-weighted images (T1WIs) and low signal intensity on T2WIs. Most IPTs of the kidney appear as an ill-defined, hypovascular, homogeneous tumor on CT images, with variable signal intensity on MRI T1WIs and low signal intensity on T2WIs. Our case had the same imaging findings, with branches of the renal artery penetrating the tumor. If the renal tumor has these radiological findings, the tumor may be IPT.

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“…The differential diagnoses of renal mass associated with pyelo-calyceal involvement included Wilms' tumour [22,23], renal cell carcinoma [35], xanthogranulomatous pyelonephritis [1][2][3], malakoplakia [4][5][6], inflammatory pseudotumour of the renal pelvis [7][8][9], renal lymphoma [36], and fungal infection [10,11]. In our patient the lesion could not be identified preoperatively; hence, a needle biopsy was performed.…”

Section: Commentarymentioning

confidence: 96%