Cutaneous myelolipoma in a peach‐faced lovebird(Agapornis roseicollis)

Hepatic Myelolipoma and Amyloidosis with Osseous Metaplasia in a Swan Goose (Anser cygnoides)

“…Metastasis of myelolipomas to other organs has not been reported, and the tumours are typically found as incidental lesions unassociated with clinical signs. All three previous avian cases of myelolipoma had heterophil predominance in the haematopoietic component of the tumour (Andreasen et al, 1995;Latimer and Rakich, 1995;Ozaki et al, 1996). The findings in the liver of the present case were consistent with those of hepatic myelolipoma.…”

Hepatic Myelolipoma with Systemic Amyloidosis in a Goose (<i>Anser cygnoides domesticus</i>)

“…In the present case, fatty components were more prominent than hematopoietic components, and bony spicules were observed only in the limited areas of tumor tissue as previously reported in hepatic myelolipoma [13,21,22]. To date, six cases of myelolipoma have been reported in birds; four occurring in the cutaneous tissue, one in the abdomen, and one in the liver [2,11,17].…”

“…On the other hand, the tumor is infrequent and mostly located in the liver or spleen in domestic animals [1,7,8,13,15,23]. In birds, the tumor is extremely rare, and there are only a few reports in pet and exotic birds [2,11,17]. This paper describes histologic and ultrastructural characteristics of the first case of hepatic myelolipoma with systemic amyloidosis in a goose (Anser cygnoides domesticus).…”

A case of cutaneous angiolipoleiomyoma (angiomyolipoma) in a budgerigar (Melopsittacus undulatus)

“…Myelolipoma is composed of admixed proliferation of mature white adipose tissue and several aggregates of the haematopoetic stem cells, without smooth muscle bundles, and the angioma component. These tumours may occur in the subcutis of the skin (Ozakt et al, 1996). This tumour type, cutaneous angiolipoleiomyoma (angiomyolipoma), has not previously been detected in the budgerigar; however, this case shows histological and immunohistochemical similarities to extrarenal, cutaneous angiomyolipoma occurring in human patients.…”