J Korean Assoc Pediatr Surg.  2008 Jun;14(1):83-87.

A Case Report of Accessory Cervical Thymus

Affiliations
  • 1Department of Surgery, Inje University College of Medicine, Busan Paik Hospital, Busan, Korea. chunysmd@yahoo.co.kr
  • 2Department of Pathology, Inje University College of Medicine, Busan Paik Hospital, Busan, Korea.

Abstract

Accessory cervical thymic tissue has been rarely reported. However, it should be included in the differential diagnosis of neck masses in children, along with branchial anomalies, lymph nodes and other tumors. This lesion occurs along the descending line of the thymus between the angle of mandible and superior mediastinum. A 2-month-old infant presented with an asymptomatic left sided neck mass. MRI revealed a well defined homogeneous mass in the deep lobe of left parotid gland. At operation, an easily identified soft tissue mass was found in the left submandibular area, measuring 3 x 1.5 cm. It was completely excised. Microscopic examination revealed normal thymic tissue.

Keyword

Neck mass; Accessory thymus; Infants

MeSH Terms

Child
Diagnosis, Differential
Humans
Infant
Lymph Nodes
Mandible
Mediastinum
Neck
Parotid Gland
Thymus Gland
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