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. 2021 Jul 12;8(7):002540.
doi: 10.12890/2021_002540. eCollection 2021.

Sarcoidosis with Rare Extrapulmonary Involvement

Marta Brandão Calçada  1 , Sara Montezinho  1 , Andreia M Teixeira  1 , Bruno Gomes  1 , Bernardo Macedo  1
Affiliations

Sarcoidosis with Rare Extrapulmonary Involvement

Marta Brandão Calçada et al. Eur J Case Rep Intern Med. .

Abstract

Sarcoidosis is a systemic granulomatous disease in which medullary involvement is a rare extrapulmonary manifestation. We present the case of a 37-year-old man with right abdominal and dorso-lumbar pain lasting for months. Computerized tomography showed renal microlithiasis and retroperitoneal, hilar and mediastinal adenopathies. Laboratory results showed an elevated erythrocyte sedimentation rate, IgG, β2-microgobulin and angiotensin-conversion enzyme, serum calcium in the upper limit and hypercalciuria. There was a slight elevation of the CD4/CD8 ratio in bronchoalveolar lavage, without lymphocytic alveolitis. An endobronchial ganglion biopsy was inconclusive. A positron emission tomography scan demonstrated supra and infra-diaphragmatic, splenic and medullary involvement, suggesting lymphoproliferative disease (LPD). A bone marrow biopsy (BMB) revealed sarcoid-like epithelioid cell granulomas, excluding LPD. Sarcoidosis was assumed and corticosteroids were started. Although cytopenias were not present, the extensive ganglion, splenic and medullary involvement made LPD exclusion imperative, while BMB allowed for a definitive diagnosis.

Learning points: Sarcoidosis is a multisystemic granulomatous disease in which medullary involvement is a rare extrapulmonary manifestation.Bone marrow biopsy is rarely performed based on serial blood counts, which may be associated with underdiagnosis.FDG-PET cannot reliably distinguish between sarcoidosis and lymphoproliferative disease as the cause of extensive ganglion, splenic and bone marrow involvement, and so a high index of clinical suspicion is required.

Keywords: Bone marrow biopsy; bone marrow sarcoidosis; extrapulmonary sarcoidosis; sarcoidosis.

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Conflict of interest statement

Conflict of interests: The authors declare there are no competing interests.

Figures

Figure 1
Figure 1
Positron emission tomography with 18F-fluorodeoxyglucose, demonstrating supra and infra-diaphragmatic, splenic and bone marrow hypermetabolic involvement in the proximal portion of the left humeral shaft and right ischium (arrows)
Figure 2
Figure 2
Non-caseous epithelioid granuloma on bone marrow biopsy (arrow) Figure 2 Non-caseous epithelioid granuloma on bone marrow biopsy (arrow)
See this image and copyright information in PMC

References

    1. Valeyre D, Prasse A, Nunes H, Uzunhan Y, Brillet PY, Muller-Quernheim J. Sarcoidosis. Lancet. 2014;383(9923):1155–1167. - PubMed
    1. Sharma OP. Sarcoidosis around the world. Clin Chest Med. 2008;29(3):357–363. vii. - PubMed
    1. Iannuzzi MC, Rybicki BA, Teirstein AS. Sarcoidosis. N Engl J Med. 2007;357(21):2153–2165. - PubMed
    1. Brackers de Hugo L, Ffrench M, Broussolle C, Seve P. Granulomatous lesions in bone marrow: clinicopathologic findings and significance in a study of 48 cases. Eur J Intern Med. 2013;24(5):468–473. - PubMed
    1. James WE, Koutroumpakis E, Saha B, Nathani A, Saavedra L, Yucel RM, et al. Clinical features of extrapulmonary sarcoidosis without lung involvement. Chest. 2018;154(2):349–356. - PubMed

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