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Sarcoidosis is a disease of unknown cause characterized by non-necrotizing ("non-caseating") granulomas in multiple organs and body sites, [12] most commonly the lungs and lymph nodes within the chest cavity. Other common sites of involvement include the liver, spleen, skin, and eyes.
The cause of the condition is unknown. [6] [3] The disease is characterized by non-caseating granulomatous inflammation. [1]That is, the granulomas do not undergo the caseating ("cheese-like") necrosis typical of the granulomas of tuberculosis.
Sarcoidosis is characterized by the formation of non-necrotizing ("non-caseating") granulomas in various organs and tissues. [95] Giant cells, specifically Langhans giant cells, are often seen in sarcoidosis. [96] Schaumann bodies seen in sarcoidosis are calcium and protein inclusions inside of giant cells as part of a granuloma. [97]
Granulomatous–lymphocytic interstitial lung disease (GLILD) is a lung complication of common variable immunodeficiency disorders (CVID). It is seen in approximately 15% of patients with CVID. [ 1 ] It has been defined histologically as the presence of (non-caseating) granuloma and lymphoproliferation in the lung. [ 1 ]
The most common benign coin lesion is a granuloma (inflammatory nodule), for example due to tuberculosis or a fungal infection, such as Coccidioidomycosis. [6] Other infectious causes include a lung abscess, pneumonia (including pneumocystis pneumonia) or rarely nocardial infection or worm infection (such as dirofilariasis or dog heartworm ...
Although granulomatous mastitis is easily confused with cancer it is a completely benign (non-cancerous) condition. Treatment is radically different for idiopathic granulomatous mastitis and other granulomatous lesions of the breast. The precise diagnosis is therefore very important.
The disease is still sometimes confused with lethal midline granuloma and lymphomatoid granulomatosis, both malignant lymphomas. [ 34 ] The full clinical picture was first presented by Friedrich Wegener (1907–1990), a German pathologist , in two reports in 1936 and 1939, leading to the eponymous name Wegener's granulomatosis or Wegener ...
[11] [12] The proper clinical designation for donovanosis is "granuloma inguinale". [5] A granuloma is a nodular type of inflammatory reaction, and inguinale refers to the inguinal region, which is commonly involved in this infection. The disease is commonly known as donovanosis, after the Donovan bodies seen on microscopy, which are a ...