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Case Reports in Endocrinology
Volume 2013, Article ID 290843, 4 pages
Case Report

Rapidly Growing Thyroid Mass in an Immunocompromised Young Male Adult

1Department of Endocrinology, Metabolism, and Diabetes, San Juan City Hospital, Puerto Rico
2Department of Surgical Pathology and Cytopathology, Hato Rey Pathology Associates Inc., Puerto Rico

Received 8 March 2013; Accepted 19 May 2013

Academic Editors: O. Isozaki, M. P. Kane, and L. Meyer

Copyright © 2013 Mónica Santiago et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


We describe a 20-year-old man diagnosed with a myelodysplastic syndrome (MDS), admitted to our hospital due to pancytopenia and fever of undetermined origin after myelosuppression with chemotherapy. Disseminated aspergillosis (DIA) was suspected when he developed skin and lung involvement. A rapidly growing mass was detected on the left neck area, during hospitalization. A thyroid ultrasound reported a  cm oval heterogeneous structure, suggestive of an abscess versus a hematoma. Fine needle aspiration of the thyroid revealed invasion of aspergillosis. Fungal thyroiditis is a rare occurrence. Thyroid fungal infection is difficult to diagnose; for this reason it is rarely diagnosed antemortem. To our knowledge, this is the 10th case reported in the literature in an adult where the diagnosis of fungal invasion to the thyroid was able to be corroborated antemortem by fine needle aspiration biopsy.