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Contrast-enhanced computed tomography (CT) scan shows (A) a low density mass of 3.0 x 2.7 cm in diameter in the left adrenal gland and (B) hypodense, lobulated, increasing mass of 6.0 x 2.7 cm in diameter 1 year later.
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A computed tomography (CT) scan revealed a 3.0 x 2.7-cm hypodense non-enhancing lesion on the upper pole o f the left kidney, which was suspected to be an adrenal cyst (Fig. 1A). CT scan. CT scan revealed a 6.0 x 2.7-cm more larger hypodense non-enhancing lesion on the upper pole of the left kidney (Fig. 1B).
Macroscopic appearance of a adrenal lymphangioma. Photograph reveals a multi-septae and smooth cystic lesion without solid portion in adrenal gland.
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The cyst was filled with clear, nonviscous, brown colored fluid (Fig. 2).
(A) Histologically cystic lesion covered by thin, flat endothelial cells (H&E stain, x200). (B) Flat endothelial cells are positive for D2-40, a marker of lymphatic endothelium.
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The cystic spaces occasionally contained proteinaceous material, lacking red blood cell content, and the cyst wall contained adrenal cortex (Fig. 3A). On immunohistochemical statins, D2-40 cytoplastic staining was positive, whereas calretinin and CD34 were negative, thus, confirming their lymphatic nature (Fig. 3B).