Development of Intraspinal Ectopic Endometrial Tissue in Connection with Tethered Cord Syndrome

Abstract

We herein report a rare case of intraspinal ectopic endometrial tissue associated with tethered cord syndrome. The patient underwent MR imaging of the lumbar spine and CT spinal angiography. Asymptomatic dysraphism was also detected, including spinal bifida, low-lying conus medullaris, spinal meningocele and a lumbosacral lipoma. Venous reflux obstruction was also suggested. The patient underwent L2-S1 laminectomy and microdecompression of the lesion. The histological and immunohistochemical features were characteristic of ectopic endometrial tissue. Since the surgery, no neurological signs have been noted, either during or outside the patient's menstrual periods. The two-month follow-up MRI scans showed a regression of the lesion.

Case report: Diagnosis and treatment of pulmonary choristoma in a newborn calf

“…In another calf with intrathoracic pulmonary sequestration, the mass’s dimension and relation to the surrounding lung structures were evident ( 26 ). Based on previous human medicine, CT angiography can show the intra-mass abnormal vasculatures and the formation of large branches derived from the major artery, such as the descending and abdominal aorta ( 7 , 10 , 12 , 39 , 44 , 47 ). The venous drainage, such as the pulmonary vein toward the mass, is not always evident with CT angiography involving the chest cavity, despite the venous vessel of diameters ≥10 mm being detectable ( 44 ).…”

“…Choristoma is an embryonic developmental anomaly where histologically normal tissues from various organs form in different anatomical positions to their origins (1)(2)(3)(4). Choristoma origins have reportedly included mammary, striated muscular, endometrial and müllerian tissues in human patients (1,2,(5)(6)(7)(8).…”