PMC4899703_01
50-year-old woman with ovarian sarcoidosis. T2-weighted MR image of the pelvis depicting left adnexal mass (black arrowhead) concomitant with posteriorly localized complex cystic lesion and enlarged lymph node (white arrowhead) in the left internal iliac chain.
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MRI demonstrated a left adnexal mass accompanied by a complex cyst (Fig. 1). Multiple enlarged lymph nodes appeared in the paraaortic, left common and internal iliac (Fig. 1), and inguinal regions, measuring up to 2.5cm on the short axis.
50-year-old woman with ovarian sarcoidosis. PET/CT scan depicts a left adnexal mass (arrowheads) with left internal iliac lymph nodes, both demonstrating increased FDG uptake.
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PET/CT revealed a left adnexal mass with increased FDG uptake (SUD max=5.2) (Fig. 2).
50-year-old woman with ovarian sarcoidosis. PET/CT scan demonstrates bilateral hilar and subcarinal enlarged lymph nodes (arrowheads) with increased FDG uptake.
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Multiple left iliac, para-aortic, and inguinal enlarged lymph nodes (SUD max=6.2) were noted, along with mediastinal, hilar, and bilateral supraclavicular enlarged lymph nodes (SUD max=7.9 in the mediastinum) (Fig. 3).
50-year-old woman with ovarian sarcoidosis. T2-weighted axial pelvic MRI depicts regression of the left adnexal mass (black arrowhead) despite persistence of the left internal iliac lymph node (white arrowhead) with the complex cystic lesion.
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This revealed marked regression of the mass to 4x3x2.5cm; however, the previously present lymph nodes persisted on exam (Fig. 4).
50-year-old woman with ovarian sarcoidosis. 50-year-old woman with ovarian sarcoidosis. Non-necrotizing granuloma with epithelioid histiocytes artery (x100)
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A transbronchial right-lower-lobe biopsy revealed noncaseating granulomatous inflammation, and lymph-node biopsy revealed epithelioid histiocytes with noncaseating granulomatous inflammation (Fig. 5).