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Ann Pediatr Endocrinol Metab > Volume 17(4); 2012 > Article
DOI: https://doi.org/10.6065/apem.2012.17.4.244   
Manifestation of Giant Bilateral Symptomatic Adrenal Myelolipomas in an Adult Patient with Congenital Adrenal Hyperplasia.
Yoo Mi Kim, Jin Ho Choi, Beom Hee Lee, Gu Hwan Kim, Beom Sik Hong, Yong Jun Ryu, Han Wook Yoo
1Department of Pediatrics, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea. hwyoo@amc.seoul.kr
2Medical Genetics Center, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
3Department of Urology, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
4Department of Pathology, Asan Medical Center Children's Hospital, University of Ulsan College of Medicine, Seoul, Korea.
Abstract
Adrenal myelolipoma is an uncommon non-functioning tumor that is composed of variable amounts of mature adipose tissue and scattered islands of hematopoietic elements, including erythroid, myeloid, lymphoid series, and megakaryocytes. Adrenal myelolipoma should be differentiated from other fat-containing adrenal masses, such as teratoma, lipoma, and liposarcoma. This case report describes a 50-year-old adult who was raised as a male and developed giant adrenal myelolipomas that presented as symptomatic adrenal masses, and which were misdiagnosed as liposarcoma on radiologic examination. The patient had been raised as a male despite ambiguous genitalia, and a thorough investigation was never carried out because of his poor socioeconomic status. Physical examination showed profound short stature (<-3.0 standard deviation score), hyperpigmentation, and a micropenis without palpable gonads. Both a uterus and ovaries were evident in the pelvic cavity on abdominopelvic computed tomography. Adrenocorticotropic hormone stimulation tests confirmed adrenal insufficiency. Steroid replacement therapy was initiated before bilateral adrenalectomy and the histologic findings indicated myelolipoma. The patient's karyotype was 46, XX and mutation analysis of the CYP21A2 gene identified compound heterozygosity consisting of p.I173N and p.Q319*. The patient was treated with once-daily 0.5 mg dexamethasone and once-daily 0.1 mg fludrocortisone. Because the subject had been raised as a male, additional procedures such as an oophorohysterectomy are currently under consideration. We here describe an adrenal myelolipoma in this case that was complicated by a 21-hydroxylase deficiency. We conclude from our analysis that patients with congenital adrenal hyperplasia should be screened for incidental adrenal masses to avoid unnecessary surgical procedures.
Keywords: Adrenal glands;Myelolipoma;Congenital adrenal hyperplasia;hydroxylase deficiency;CYP21


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