Isolated Multiple Bilateral Thyroid Metastases from Prostatic Adenocarcinoma: Case Report and Literature Review

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Isolated Multiple Bilateral Thyroid Metastases from Prostatic Adenocarcinoma: Case Report and Literature Review Nader M. Albsoul & Fatima N. Obeidat & Azmy M. Hadidy & Mohammad N. AlZoubi & Abtehag A. Taib & Awni D. Shahait Published online: 11 January 2013 # Springer Science+Business Media New York 2013

Abstract Solitary metastasis from prostate adenocarcinoma to thyroid gland is very rare and usually associated with other distal metastasis. This report describes for the first time isolated multiple bilateral thyroid metastasis from prostatic adenocarcinoma. A 67-year-old man who is known as a case of prostatic adenocarcinoma was admitted to a hospital as a case of a multinodular goiter on the basis of clinical and CT scan findings. Total thyroidectomy was performed and histopathology result showed adenomatous goiter containing bilateral metastatic prostatic adenocarcinoma. This is the first report of isolated multiple bilateral thyroid gland metastasis from prostatic adenocarcinoma without other distal metastasis. Such lesions are very rare and can be misdiagnosed, so high index of suspicion for thyroid metastasis should be always maintained in all oncology patients with isolated thyroid mass because early resection and thyroidectomy will change the prognosis for patient.

neoplasm [2]. Thyroid gland is a rare site for metastatic disease [2] and majority of them are carcinomas [3]. TM does not depend on age but are more common in females [1] and patients in their sixth and seventh decades of life [2]. TM disease may be a diagnostic problem which can be resolved by cytological and histological examination [4]. Despite the widespread use of prostatic-specific antigen (PSA) screening for early detection, prostate cancer remains the second leading cause of cancer-related death in Western countries [5]. The prognosis of prostate cancer is mainly determined by the presence or absence of metastasis, which have a crucial role in treatment selection [5]. Prostate cancer with single thyroid and distal metastasis is rarely encountered in the clinical practice, with only five cases reported in published English literature [6–10]. We present a case of isolated multiple thyroid metastasis which was not reported before.

Keywords Thyroid . Prostate . Metastasis . Multinodular goiter

Case Report

Introduction Thyroid metastasis (TM) demonstration is dating back to 1930s [1] and representing only 2–3 % of all thyroid N. M. Albsoul (*) : M. N. AlZoubi : A. D. Shahait Department of General Surgery, The University of Jordan, P.O. Box 735, Amman 11953, Jordan e-mail: [email protected] F. N. Obeidat Department of Pathology, The University of Jordan, Amman, Jordan A. M. Hadidy : A. A. Taib Department of Radiology, The University of Jordan, Amman, Jordan

A 67-year-old man presented to our clinic, complaining of slowly growing central neck mass for 1.5 years, associated with compressive symptoms. Clinical examination showed a thyroid mass with retrosternal extension, which was not tender, hard, and minimal movable on swallowing. The pat