case_images: PMC8253379_01
case_images: Intraoperative ultrasound revealing a 2 cm heterogeneous right-sided mass consistent with an abnormal right upper parathyroid gland.
case_images: autopsy-11-e2021270-gf01.jpg
case_images: PMC8253379_01_autopsy-11-e2021270-gf01.jpg
case_images: gf01
case_images: Intraoperative ultrasound revealed a 2 cm heterogeneous right-sided mass likely consistent with an abnormal right upper parathyroid gland (Figure 1).
case_images: Photomicrographs of the resected parathyroid gland showing multiple endothelium-lined intercommunicating vascular channels filled with blood (capillary hemangioma-like proliferation) without evidence of endothelial atypia or mitotic activity and atrophy of the adjacent tissue (H&E, 20X).
case_images: autopsy-11-e2021270-gf02.jpg
case_images: PMC8253379_01_autopsy-11-e2021270-gf02.jpg
case_images: gf02
case_images: Histopathologic examination demonstrated multiple endothelium-lined anastomosing vascular channels filled with blood without evidence of endothelial atypia or mitotic activity and atrophy of the adjacent parathyroid tissue (Figure 2).