We present a case of multifocal enhancing lesions confined to the right cerebral hemisphere that mimicked diffuse neoplasm. MR spectroscopy revealed not only minimal elevation of the choline peak, but also marked elevation of the glutamate and glutamine peaks, findings that are more suggestive of an inflammatory process. Biopsy showed lymphocytic vasculitis, a rare variant of primary angiitis o...

later is associated with necrosis of skin and subcutaneous tissue leading to eschar formation. Other gradually progressive diseases presenting as discharging sin-uses in children are actinomycosis, botryomycosis, nocardiosis, and sporotrichosis. Sinus tracts of actinomycosis and nocardiosis usually discharge granules; botryomycosis is associated with subcuta-neous nodules and large verrucous (w...

A 58-year-old man was admitted with a 6-week history of fever, lethargy, arthralgia, and dyspnea on exertion. He had no prior illness or cardiovascular risk factors, and with the exception of a pyrexia, his physical examination was unremarkable. Investigations were performed, including blood and urine cultures and a connective tissue screen. He was subsequently discharged with a view to an earl...

Experiments in animal models have shown that the retinal analyzes the image to identify the position of the plane of focus and fine-tunes the growth of the underlying sclera. It is fundamental to the understanding of the development of refractive errors to know which image features are processed. Since the position of the image plane fluctuates continuously with accommodative status and viewing...

When secondary causes are excluded, mechanisms underlying central nervous system angiitis (ACNS) in human immunodeficiency virus (HIV)-infected patients are still not understood and optimal treatment remains undefined. We report here a patient with an untreated HIV infection who presented multiple ischemic strokes probably due to HIV-ACNS. ACNS signs on vessel-wall imaging magnetic resonance mo...

Wegener's granulomatosis is a disease characterised by necrotising granulomatous angiitis of the upper and lower respiratory tracts, a necrotising glomerulonephritis, and a diffuse small vessel vasculitis that may affect almost any organ system.' Various pulmonary lesions have been described, but pneumothorax has seldom been mentioned. We report a patient who developed a spontaneous pneumothora...

Vasculitides are a heterogeneous group of more than 20 diseases defined by inflammation and destruction of blood vessels. We aimed to study the demographic characteristics of the primary vasculitides in the North East of Iran. We retrospectively studied the medical records of patients diagnosed with any kind of vasculitis at the Clinic and Department of Rheumatology of the Imam Reza Hospital, M...