Growing mammary choristoma masquerading as a lumbosacral lipomyelomeningocele in a pubertal girl Case report
Department of Pathology and Laboratory Medicine, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin 53792, USA.Journal of Neurosurgery Pediatrics (Impact Factor: 1.48). 09/2011; 8(3):321-4. DOI: 10.3171/2011.6.PEDS10480
The authors report, to the best of their knowledge, the first case of lumbosacral choristoma of breast origin, presenting in a young girl with lumbosacral lipomyelomeningocele. Although choristomas are considered to be benign, the regrowth of this mass when the patient was 15 and 16 years of age, and its involvement in the conus medullaris and cauda equina, warranted 2 additional resections with spinal cordotomy resulting in cessation of any further growth. The authors describe the case and provide a review of pertinent literature and a discussion of the mechanisms involving the development and growth of this lesion.
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ABSTRACT: Uterus-like mass is an extremely rare choristoma of müllerian origin arising in association with neural tube defects. In this article, we describe the case of a 9-year-old girl with spina bifida, a mass lesion within the conus, and a subcutaneous lipoma in the lumbosacral region. Histopathological examination of the conus lesion revealed a uterus-like structure comprising of endometrial glands and stroma surrounded by fascicles of smooth muscle. This case differs from the few previously described cases in absence of neurological symptoms and early age at diagnosis. Thorough histopathological examination of resected tissue is therefore recommended for the diagnosis of this rare entity, as it may not have a typical presentation in all instances.
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