Ectopic thyroid in an adrenal mass: a case report.

Department of Urology, Saitama Medical University, Saitama, Japan.
BMC Urology (Impact Factor: 1.94). 02/2006; 6:18. DOI: 10.1186/1471-2490-6-18
Source: PubMed

ABSTRACT It is difficult to explain ectopic thyroid beneath the diaphragm because during the development the thyroid descends from the tongue to the anterior of the trachea. A few cases of ectopic lesions have been reported in the literature for abdominal organs including the adrenal glands, but the mechanism by which the thyroid components migrate into the abdomen has been poorly understood.
A 54-year-old woman was diagnosed as having an adrenal mass. Laparoscopic adrenalectomy was carried out. Microscopically, the mass was composed of normal adrenal and ectopic thyroid tissues.
We herein describe the fourth case reported of ectopic thyroid in the adrenal gland.

  • [Show abstract] [Hide abstract]
    ABSTRACT: Ectopic thyroid tissue remains a rare developmental abnormality involving defective or aberrant embryogenesis of the thyroid gland during its passage from the floor of the primitive foregut to its usual final position in pre-tracheal region of the neck. Its specific prevalence accounts about 1 case per 100.000-300.000 persons and one in 4.000- 8.000 patients with thyroid disease show this condition. The cause of this defect is not fully known. Despite genetic factors have been associated with thyroid gland morphogenesis and differentiation, just recently some mutation has been associated with human thyroid ectopy. Lingual region in the most common site of thyroid ectopy but ectopic thyroid tissue were found in other head and neck locations. Nevertheless, aberrant ectopic thyroid tissue has been found in other places distant from the neck region. Ectopic tissue is affected by different pathological changes that occur in the normal eutopic thyroid. Patients may present insidiously or as an emergency. Diagnostic management of thyroid ectopy is performed by radionuclide thyroid imaging, ultrasonography, CT scan, MRI, biopsy and thyroid function tests. Asymptomatic euthyroid patients with ectopic thyroid do not usually require therapy but are kept under observation. For those with symptoms, treatment depends on size of the gland, nature of symptoms, thyroid function status and histological findings. Surgical excision is often required as treatment for this condition.
    International Journal of Surgery (London, England) 05/2014; DOI:10.1016/j.ijsu.2014.05.076 · 1.44 Impact Factor
  • [Show abstract] [Hide abstract]
    ABSTRACT: The presence of subdiaphragmatic thyroid tissue is a very rare finding. We reviewed the literature and found only 15 published cases. The most appropriate management of this entity has not been established, but surgical removal is common to exclude malignancy. We present the case of a 76-year-old woman with an ectopic mesenteric thyroid gland forming a retroperitoneal mass that was surgically removed. Outcome was favorable.
    Gastroenterología y Hepatología 06/2012; 35(6):400–403. DOI:10.1016/j.gastrohep.2012.03.013 · 0.83 Impact Factor
  • Source
    Endocrine Pathology 06/2013; 25(3). DOI:10.1007/s12022-013-9255-x · 1.64 Impact Factor

Full-text (2 Sources)

Available from
May 16, 2014