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Accessory thymus in posterior mediastinum

Author(s): Bhatnagar Sushmita | Pradhan Rohit | Shastri Pankaj | Shenoy Pradeep

Journal: Journal of Indian Association of Pediatric Surgeons
ISSN 0971-9261

Volume: 13;
Issue: 4;
Start page: 140;
Date: 2008;
Original page

Keywords: Accessory thymus | posterior mediastinum

Presence of thymus in the normal position as well as in the posterior mediastinum is an unusual phenomenon. We report here a case of posterior mediastinal mass in a 20-month old male child who presented with dysphagia and dry cough. Investigations revealed it to be a solid posterior mediastinal mass, suspected to be either lymphoma or a neuroblastoma. Excision of the mass followed by histopathologic examination revealed the mass to be a normal thymus. This case indicates that a benign mass, an accessory thymus, though rare, can be located in the posterior mediastinum and cause symptoms similar to solid mediastinal tumors.
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