Inflammatory pseudotumour of the colon

Author:

Spyrou I1,Davakis S1,Moris D1,Lakiotaki E1,Dimitrokallis N1,Papalampros A1,Schizas D1,Pikoulis E1,Felekouras E1

Affiliation:

1. National and Kapodistrian University of Athens, Greece

Abstract

IntroductionA colorectal inflammatory myofibroblastic tumour (IMT) is a rare but benign entity masquerading as a malignant tumour. Although the lung is considered the most common site of occurrence, IMTs may arise in diverse extrapulmonary locations. We describe a case of a colonic IMT in a patient who presented in the emergency setting.Case HistoryA 77-year-old man was admitted at our emergency department with acute abdominal pain. Physical examination revealed vague tenderness of the lower abdomen and non-palpable masses. Preoperative evaluation revealed a mass in the right lower quadrant of the abdomen, possibly originating from the terminal ileum, 1–2cm from the caecum. Owing to the clinical impression of a potentially malignant lesion, the patient underwent subtotal colectomy and omentectomy. The pathology report suggested the morphological and immunohistochemical features were more compatible with a colonic IMT.ConclusionsA colorectal IMT is a rare clinical entity that can easily mimic a highly malignant tumour and cannot be distinguished clinically or radiologically. An accurate diagnosis is based on histological examination and surgical resection is therefore usually required.

Publisher

Royal College of Surgeons of England

Subject

General Medicine,Surgery

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