[IGG4-related disease. Report of 52 patients].

Background: IgG4-related disease (IgG4 RD) is an immune-mediated fibro-inflammatory disorder, with tissue infiltration of IgG4+ plasma cells. It causes pseudotumors, tumors, and a wide spectrum of clinical manifestations.

Aim: To report the clinical, laboratory, histopathological and treatment characteristics of a group of Chilean patients with IgG4 RD.

[Lymphadenopathies in patients with rheumatic diseases. Review of 19 cases].

Background: The presence of multiple lymphadenopathies can be a diagnostic challenge.

Aim: To describe the clinical, laboratory and imaging characteristics of 19 patients with lymphadenopathies of rheumatologic origin.

Material And Methods: Review of medical records of 19 patients aged 16 to 72 years (68%) with lymphadenopathies presumably secondary to a rheumatic disease.

[IgG4 associated nephritis and recurrent hemoptysis: Case report].

IgG4 disease is a multi-systemic condition involving pancreas, salivary glands and lymph nodes. Less frequently, it causes interstitial nephritis and involves the lungs. We report a 58 years old male with a four years history of hemoptysis and renal dysfunction characterized by hematuria and proteinuria, responsive to steroidal therapy.

[Pulmonary artery sarcoma mimicking a Hughes Stovin syndrome. Report of one case].

Pulmonary artery sarcoma is an uncommon entity with high mortality. Its clinical presentation is usually indistinguishable from pulmonary embolism, which leads to a significant delay in diagnosis. Hughes-Stovin syndrome is characterized by venous thrombosis and aneurysms of the pulmonary or bronchial artery.

[Pneumorrhachis, spondylitis and meningitis secondary to emphysematous cystitis. Report of one case].

We report a 57-year-old woman who presented with low back pain, fever and impairment of consciousness. The patient was admitted to the intensive care unit in Glasgow 8, with neck stiffness, peritoneal irritation, leukocytosis, hyperglycemia requiring insulin and a urine test suspecting an infection. Brain CT was unremarkable, while CT of the abdomen and pelvis evidenced emphysematous cystitis, retropneumoperitoneum and pneumorrhachis.

[A national survey on smoking habit among health care workers in Chile].

Background: Worldwide, smoking is the main avoidable cause of death among adults.

Aim: To study smoking habits among health care workers in Chile.

Material And Methods: A national survey about smoking among subjects working in the Chilean Ministry of Health.