“…Normally, the diagnosis occurs when the tumour reaches considerable proportions. In literature, cases of myelolipoma are reported mainly in the spleen of dogs, cats and ferrets but also in adrenal glands of non-human primates and in cutaneous tissue and liver of exotic birds (Sander and Langham 1972, King 1993, Kakinuma and others 1994, Spangler and others 1994, Latimer and Rakich 1995, Li and others 1996, Prater and others 1998, Al-Rukibat and Bani Ismail 2006, Wouda and others 2010, Carrillo and others 2012). Differential diagnoses for a splenic mass are benign lesions such as nodular hyperplasia, extramedullary haematopoiesis, haematoma, splenic myelolipoma and malignancies such as hemangiosarcoma, other sarcomas, round cell neoplasms and metastases.…”