PMC7283099_01
Gross features show a tumour with lobulated surface partially covered by fat tissue measuring 9 cm x 8 cm x 4 cm.
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PMC7283099_01_gr1.jpg
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Grossly the tumour was firm with a lobulated surface measuring 95 mm x 85 mm x 40 mm and weighing 140 g (Fig. 1).
(A) Histopathologic picture showing an encapsulated tumour of myelolipoma composed of mature fat cells mixed with hematopoietic elements (x4 magnification). (B) High power view of the trilineage hematopoietic element with megakaryocytes (x40 magnification). (C) Low power view of lipomatous tumour component with attenuated adrenal cortex at the periphery (arrow) (x4 magnification). (D) Tumour with adjacent adrenal cortex (*) (x20 magnification).
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PMC7283099_01_gr2.jpg
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Histologically, it is a well-circumscribed tumour composed of lobules of mature univacuolated adipocytes separated by fibrous septae and rimmed by a thin capsule (Fig. 2A). There were intervening blood vessels and bone marrow elements containing trilineage hematopoietic cells with an increase in the number of megakaryocytes (Fig. 2A and B). There was an attenuated adrenal cortical tissue seen at the periphery (Fig. 2C and D).