What is inflammatory pseudo tumor?

Inflammatory pseudotumor (IPT) is a term used to describe a benign and rare process most commonly involving the lung and orbit but found in nearly every site in the body. This entity has been described by several names and histologic presentations and as mimicking neoplastic processes.

What is a pseudo tumor on liver?

Introduction. Inflammatory pseudotumor (IPT) of the liver is a rare benign lesion that frequently resolves spontaneously. 1. This lesion, however, may clinically and radiologically mimic a malignant liver tumor, placing it in the differential diagnosis in patients with hepatic space-occupying lesions.

What is an inflammatory myofibroblastic tumor?

An Inflammatory myofibroblastic tumor (IMT) is an uncommon, usually benign (non-cancerous) tumor made up of cells called myofibroblastic spindle cells. It usually develops in children or young adults, but can affect people of any age.

Is inflammatory myofibroblastic tumor a sarcoma?

Inflammatory myofibroblastic tumors usually occur in children and young adults. They are a type of soft tissue sarcoma.

How fast do benign tumors grow?

Benign tumors tend to grow slowly and have distinct borders. Benign tumors are not usually problematic. However, they can become large and compress structures nearby, causing pain or other medical complications.

What is myofibroblastic proliferation?

Pseudosarcomatous myofibroblastic proliferation (PMP) is a rare disease entity of unknown etiology and pathogenesis. PMP is also known as an inflammatory pseudotumor (IPT) or inflammatory myofibroblastic tumor (IMT), and it is characterized by myofibroblast proliferation and inflammatory cell infiltration.

What is myofibroblastic spindle cell?

Histopathologically, myofibroblastic sarcomas (MFS) are composed of slender spindle cells with variable nuclear pleomorphism and mitotic activity. The spindle cells are arranged in interlacing fascicles and have eosinophilic cytoplasm, which may be occasionally wavy.