Skip to main content

Table 1 Symptoms, radiological findings and differential diagnosis of the main IMTs of the body

From: Inflammatory myofibroblastic tumours: a pictorial review

 

Symptoms

Imaging findings

Differential diagnosis

Orbit

Pain, redness, oedema, proptosis, ptosis, oculomotor deficits, diplopia, swelling, mass-effect

Solid and heterogeneous enhancing. Low intensity on T2-weighted due to fibrotic composition. Associated retrobulbar fat or oedema

Granulomatous diseases, primary infection, sarcoid, Sjögren disease, primary and secondary tumours of the orbit, lymphoma and connective tissue diseases

Lung

Cough, chest pain, dyspnea, haemoptysis, fever, malaise and weight loss.

Solitary, well-circumscribed, peripheral, predominance for the lower lobes, unusual calcifications. Heterogeneous or homogeneous enhancement pattern. Low intensity on T2-weighted images

Malignant lung masses: primary bronchogenic carcinoma

Scrotum

Lump in the scrotum

Solid and heterogeneous masses with internal vascularity on US. Well-defined, hypodense, little enhancement on CT. Small calcifications can be associated

Scrotum primary neoplasm

Hepatic

Unspecific, depending on the size

Heterogeneous or peripheral enhancement during the arterial phase. Or homogeneous enhancement during the arterial phase and washout during the delayed phase on CT. T1 hypointense and T2 hyperintense with heterogeneous enhancement

HCC

Splenic

Left upper quadrant or epigastric pain

Low-density pattern. Low-intensity on the T1- and T2-weighted images. Low-intensity lesion in the early phase after gadolinium injection and high-intensity in the delayed phase

Splenic haemangioma and other primary splenic neoplasms as lymphoma or splenic angiosarcoma

Grastrointestinal tract and mesentery

Abdominal pain, intestinal obstruction, dysphagia, anaemia

Hypodense, heterogeneous, well-delimited

GIST, inflammatory fibroid polyp, smooth muscle neoplasm, peripheral nerve sheath tumour, solitary fibrous tumour, fibromatosis, the follicular dendritic cell sarcoma, lymphoma and adenocarcinoma

Musculoskeletal

Pain, oedema

Non-homogeneous, solid

Malignant lesions: rabdomyosarcoma