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pulmo 4 - darkhorse
#1
A 59-year-old male is evaluated for worsening shortness of breath for 1 week. Fourteen months ago he
received a single right lung transplant for a history of idiopathic pulmonary fibrosis. The posttransplant
course was complicated by three episodes of acute rejection in the first year. His current
immunosuppressive medications include prednisone, tacrolimus, and mycophenolate. On physical
examination the patient is afebrile with normal vital signs except for a respiratory rate of 20/min. There
are diffuse crackles on the left and diminished breath sounds on the right with dullness to percussion. A
chest radiogram reveals a moderate to large right pleural effusion that was not present 2 months ago.
Evaluation of the pleural fluid shows malignant T lymphocytes that are consistent with primary
lymphoma. Which of the following is most likely to be responsible for the malignant pleural effusion?

A. Cytomegalovirus
B. Epstein-Barr virus
C. Human herpesvirus 8
D. Parvovirus B19
E. Respiratory syncytial virus
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#2
A. most important in transplant pt.

but it can be caused by EBV too.
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#3
b?
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#4
A---
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#5
B.
EB virus - Lymphoma
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#6
The answer is C.


Human herpesvirus type 8 (HHV-8) is causally associated with primary effusion lymphoma as well as
Kaposi's sarcoma and multicentric Castleman's disease. Primary effusion lymphoma is composed of T
lymphocytes. Patients with chronic profound impairment of cell-mediated immunity such as HIV infection,
solid organ transplantation, and bone marrow transplantation are at risk of disease. Epstein-Barr virus
can cause posttransplant B cell lymphoproliferative disease in transplant recipients. Parvovirus B19
infection does not cause lymphoma but may lead to a pure red blood cell aplasia. Cytomegalovirus
causes acute pneumonitis and has been associated with an increased risk of chronic rejection or
bronchiolitis obliterans syndrome after lung transplantation. Respiratory syncytial virus may cause an
acute pneumonitis after lung transplantation
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