An inflammatory pseudotumor of the spleen is a rare benign tumor and designated as mass-like lesions with histologic features of nonspecific inflammation and mesenchymal repair although its etiopathogenesis still remains unknown. Here we describe the case of an inflammatory pseudotumor of the spleen in a 57-year-old woman, whose lesion was accidentally found and thought to be lymphoma at first....

Inflammatory pseudotumor of the lung is a rare form of benign neoplasia and is generally characterized by a solitary pulmonary nodule. The endobronchial presentation is uncommon. Conservative surgery remains the treatment of choice, and surgeons should always strive to achieve tumor-free margins due to the possibility of local recidivism. This article reports the case of a 36-year-old male pati...

Inflammatory myofibroblastic tumor (IMT), also called "inflammatory pseudotumor", is a rare benign tumor composed of spindle cells with a variable infiltrate of inflammatory cells and fibrous tissue. There have been many reported cases of IMT in every organ system; however, IMT in the mediastinum is rare. We report a rare, proven case of spontaneous regression of IMT in the right cardiophrenic ...

Ophthalmologists in the early 1800s made an interesting observation that several patients with presumed orbital tumors showed spontaneous improvement without any treatment. Until then proptosis was considered as prima facie of orbital neoplasm. Panas coined the term “pseudoplasm” for these puzzling cases. Birchfield in 1930 used the term orbital pseudotumor for such cases. Improvements in diagn...

The objective of this study is to report and discuss a rare and inflammatory cause of exophthalmos. This report describes a patient with exophthalmos, who was initially diagnosed with euthyroid Graves' with good response to therapy. After 8 years of follow-up, she had recurrence of symptoms and a new evaluation revealed the final diagnosis of orbital pseudotumor. Orbital pseudotumor is an uncom...

An inflammatory pseudotumor is a rare benign lesion consisting of fibrous tissue and inflammatory cells. Although it can appear anywhere in the body, the most common site for this lesion is the lung.1 The hepatic counterpart was first described in 1953 by Pack and Baker.2 Since then only about 50 cases have been reported in the literature.3 The clinical and pathologic features have been well de...

We treated a patient with inflammatory pseudotumor of the mediastinum that exhibited high uptake of fluorodeoxyglucose on positron emission tomography. A 69-year-old male patient was diagnosed with a mass measuring 70 mm in diameter in the anterior mediastinum as revealed by computed tomography. The lesion showed strong uptake of 18-fluorine fluorodeoxyglucose with a maximum standardized uptake...

Immunoglobulin (Ig) G4-related systemic disease is a recently characterized entity. The best-known manifestation is pancreatitis. Other systemic involvements are also described. Three cases of this disease with hypophyseal involvement have been reported in the literature, all diagnosed clinically. We herein present the first case of IgG4-related hypophysitis diagnosed histopathologically. The p...

INTRODUCTION Inflammatory pseudotumor of the liver represents a fairly uncommon pathology. Although it is a benign tumor, the correct diagnosis can be missed. CASE PRESENTATION We report the case of a 55-year-old Caucasian man, who presented with a one-month history of abdominal pain and weight loss. He was diagnosed with a primary liver tumor by computed tomography and magnetic resonance ima...

Inflammatory pseudotumors are quasineoplastic lesions that occur in the lungs as well as other extrapulmonary sites. The heart is an uncommon site of origin. We report a valvular pseudotumor that produced chronic mitral and aortic regurgitation in an elderly woman.