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CC BY-NC-ND 4.0 · Indian J Med Paediatr Oncol 2013; 34(04): 320-322
DOI: 10.4103/0971-5851.125257
CASE REPORT

Inflammatory myofibroblastic tumor of kidney with heterotopic bone formation: An unusual case mimicking a renal malignancy

Pooja Navale
Department of Pathology, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
,
Santosh Menon
Department of Pathology, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
,
Ganesh Bakshi
Department of Urologic Oncology, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
,
Ritesh Pruthy
Department of Urologic Oncology, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
,
Sangeeta Desai
Department of Pathology, Tata Memorial Hospital, Parel, Mumbai, Maharashtra, India
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Abstract

Inflammatory myofibroblastic tumor (IMFT) or pseudotumor is a rare tumor that can be seen in various organs. It is an enigmatic tumor of unknown etiology and difficult to differentiate from malignancy, clinically as well as radiologically. Histologically, it is composed of variable proportions of proliferating spindle myofibroblasts, fibroblasts, extracellular collagen, lymphocytes and plasma cells. This mainly affects the urinary bladder or prostate. Renal involvement is extremely rare and may pose diagnostic difficulty to the clinician. We describe a renal IMFT, mimicking renal malignancy, having unusual histological features.

Keywords

Inflammatory - myofibroblastic - renal


Publication History

Article published online:
19 July 2021

© 2013. Indian Society of Medical and Paediatric Oncology. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/.)

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