IgG4-related IPTs have been reported in various sites and may form part of the spectrum of systemic IgG4-related sclerosing disease. Some pseudotumors are clinically and radiologically indistinguishable from malignant tumors. We present the first case of an IgG4-related IPT of the trigeminal nerve diagnosed histopathologically without involvement of any of the common sites. The trigeminal nerve...

Three cases of bone changes caused by foreign bodies that appeared to be tumoral lesions or pseudotumors, were observed in young male patients who presented with pain, localized inflammation, and radiographic and bone scan findings suggestive of tumoral or pseudotumoral lesions. Accurate diagnosis was made at surgery when the foreign body was retrieved. Following removal of the foreign body, po...

Inflammatory myofibroblastic tumors (IMT) were previously included in the "inflammatory pseudotumors" family, but have emerged as a distinct entity recently. The management of IMT may be challenging due to its intermediate malignant potential. We present a case of a young patient with an asymptomatic retroperitoneal mass with some imaging findings that could point to the IMT diagnosis pre-opera...

Over the 8-year period 1971--1978, 743 benign lesions of the larynx, of which 551 were pseudotumors and 192 were benign neoplasms, were surgically treated at Groote Schuur Hospital. In comparison, during the same period 402 malignant tumours of the larynx were also seen. The commonest benign lesions were vocal cord nodules, almost exclusively found in women, and the vocal cord polyp, predominan...

Inflammatory pseudotumors of the biliary tract represent an infrequent pathology, with few cases reported in literature. In radiological or surgical explorations, these tumors are usually diagnosed as unsuspected findings. They a challenge preoperative diagnosis, due to cost specific technology such Spyglass DS (Boston Scientific) and need trained personnel for its correct use. This means that ...

After renal parenchymal sparing surgery, with the use of surgical gelatin sponge, residual defects may persist on imaging studies at the sites of resection. These "pseudotumors" may lead to confusion as to whether a lesion was removed or has recurred. These lesions usually resolve within a year. We report a case of pseudotumor renal parenchymal sparing surgery in a 69 year old man, with resolut...