Lymphomatoid granulomatosis (LYG) is a rare angiocentric and angiodestructive EBV-associated B-cell lymphoproliferative disorder. It is hypothesized that. Pulmonary lymphomatoid granulomatosis (PLG) is an uncommon pulmonary disorder characterized by multiple pulmonary nodular lesions with. Lymphomatoid granulomatosis (LYG or LG) is a very rare lymphoproliferative disorder first characterized in Lymphomatoid means lymphoma-like and.

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It is usually a progressive disorder that virtually always involves the lung and characteristically presents as bilateral pulmonary nodules.

Lymphomatoid granulomatosis – Wikipedia

New author database being installed, click here for details. Hepatosplenic Angioimmunoblastic Enteropathy-associated T-cell lymphoma Peripheral T-cell lymphoma not otherwise specified Lennert lymphoma Subcutaneous T-cell lymphoma. Systemic symptoms are not uncommon and may include fever, a general feeling of poor health malaiseweight loss, and fatigue.

The products from all reactions were separated by capillary electrophoresis on an ABI xl Genetic Analyzer and the electropherograms analyzed using GeneMapper software version 3. Years Published,, LYG was included as a distinct disease entity in the WHO classification 6 and considered a lymphoproliferative disorder of indeterminate malignant potential. Yes, only in grade 1 lesions with prominent angiocentricity and in conjunction with a high clinical suspicion.

Grade 2 has increasing numbers of large EBV-positive B cells. Extrapulmonary sites are common and may be seen with disease progression.

B Focally there is coagulative-type necrosis. Patients with lymphomatlid are more likely to have cavitary nodules. However, possible infectious, environmental, genetic, and immunological factors are under investigation as potential causes of the disorder. Although the exact cause of Churg-Strauss syndrome is unknown, many researchers indicate that abnormal functioning of the immune system plays an important role.


The pulmonary complications are usually what leads to death, however, CNS involvement that affects up to one third of the patients can be very severe with mental status changes, ataxiahemiparesisseizuresunconsciousness and death, typically followed lymphokatoid that order.

Lymphomatoid granulomatosis granulomaosis lead to progressive pulmonary failure, central nervous system disease, or progression to overt EBV-positive lymphoma without appropriate recognition and management. No sponsor or advertiser has participated in, approved or paid for the content provided by Decision Support in Medicine LLC.

If the lungs are affected, a cough, expectoration of blood hemoptysisand inflammation of the thin granulkmatosis lining the outside of the lungs and the inside of the lung may be present. Open in a separate window.

The same panel was applied to 3 cases of interstitial pneumonitis as controls. If the clinical picture is consistent with LYG multiple lung lesions, sparing of the lymph nodes, spleen, bone marrow, and low peripheral blood viral load and the lesions have morphologic and immunophenotypic features consistent with LYG, we feel that a diagnosis of LYG can be made in the post transplant setting.

Originally, the disorder was viewed as a benign process with the potential to progress to malignant lymphoma. In most patients, the cough is non-productive and is rarely associated with blood hemoptysis. The ideal treatment for lymphomatoid granulomatosis is not known.

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Lymphomatoid granulomatosis occurs in the setting of a poorly functioning immune system, for example:. Patients with an underlying acquired or inherited immunodeficiency syndrome may be diagnosed with LYG e.

The authors have no conflicts of interest to disclose. The therapy used varies, but is generally directed against eliminating the EBV-infected B-cells or boosting the immune system. Click here for information on linking to our website or using our content or images. Immunophenotyping of lesional cells reveals both B and T lymphocytes. Two of the patients with an initial diagnosis of LYG grade 1 progressed to grade 2 and grade 3 despite therapy.

Lymphomatoid Granulomatosis (LYG)

You must be a registered member of Cancer Therapy Advisor to post a comment. Author information Copyright and License information Disclaimer. Association of lymphomatoid granulomatosis with Epstein-Barr viral infection of B lymphocytes and response to interferon-alpha lykphomatoid.

The pathological findings in the skin are not specific, although they might suggest the diagnosis of LYG.

We have not encountered any case in which LYG was confined to the skin. Pre and post therapy e. It should be noted that EBV was not only seen in the large transformed B cells.