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Sarcoidosis Vasc Diffuse Lung Dis. 2006 Oct;23(3):229-35.

Thrombocytopenia in sarcoidosis.

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1
Department of Internal Medicine, CHU Nord, Amiens Cedex 1, France. morganafara@hotmail.com

Abstract

BACKGROUND:

Haematological manifestations in sarcoidosis are uncommon. The prevalence of thrombocytopenia in sarcoidosis is not well assessed.

AIM:

To describe the main characteristics and outcome of sarcoidosis associated with thrombocytopenia.

METHODS:

We described 2 personal cases and a complete record of all reports of thrombocytopenia in sarcoidosis was persuaded through a medline multi language computer search from 1972 until now.

RESULTS:

CASES REPORTS:

In the first observation the clinical course was similar to immune thrombocytopenic purpura. Steroids were efficient. In the second, we have reported the first used of Rituximab in thrombocytopenia in sarcoidosis with a partial success.

REVIEW OF THE LITERATURE:

We identified three main physiopathological mechanisms among the 31 cases collected. Hypersplenism or splenomegaly was found in ten cases, granulomas in bone marrow were found in only four. Auto-immune thrombocytopenic purpura was suspected in the other cases. 23 patients had been treated with steroids, which proved effective in 21 cases (in association with intravenous immunoglobulin(IV-ig) or anti-D. Among the five cases for which steroids were non efficient, subsequent splenectomy allowed normalization of platelets count. Splenectomy was performed in seven cases, as a first intention treatment for five patients, and successful in four. One patient died of massive haemorrhage during the surgery. Among the 5 patients treated with IV-Ig, 4 had a complete response.

CONCLUSION:

Different physiopathological mechanisms are responsible of thrombocytopenia in sarcoidosis. Granulomas in bone marrow or hypersplenism may be involved. Immune thrombocytopenic purpura must be suspected in all other cases. Steroids remain the most effective treatment, and must be proposed in first intention.

PMID:
18038923
[Indexed for MEDLINE]
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