Two interesting cases of cervical thymic cyst are reported highlighting the importance of this entity which can be missed preoperatively . Thymic cysts are of two types-unilocular and multilocular. They differ in both macroscopic as well as microscopic findings. Histopathology helps to identify these cysts.

We report a new case of a mediastinal mass in a 19-year-old patient corresponding microscopically to an association of unilocular thymic cyst and true thymic hyperplasia. Our aim is to highlight the absence of specificity of clinical and radiological findings and the necessity of a thorough sampling of the tumor in order to establish the diagnosis.

Thymic cysts are particularly rare, and because most are asymptomatic, they are usually found incidentally as unsuspected masses on chest radiographs. We report two cases, one congenital and the other neoplasic thymic cysts, both presented initially as idiopathic thymic cysts, and later in association with chronic respiratory or cardiac symptoms developed in relation with widening of the medias...

BACKGROUND The thymus develops from the third pharyngeal pouch and descends from the neck into the anterior-superior mediastinum. Thus, it is possible to have thymic remnants in the neck, which most often present as a cervical mass during childhood. One type of cystic thymic remnant is the thymopharyngeal duct cyst, a remnant of one of the paired tracts of embryological thymic descent. Thymopha...

We present a case of a 6 year-old boy who presented with a huge mass in the right side of the neck and changes its size with respiration and with straining. Computed tomography of the chest and neck showed a huge mass that was thought to be cystic hygroma. It was excised by both median sternotomy and a right cervical incision. Pathology revealed a thymic cyst.

We present the case of a 10-year-old boy with the sudden onset of a large, painless left neck mass. Findings on magnetic resonance imaging (MRI) and fine needle aspiration (FNA) biopsy suggest a cystic lesion, most likely of thymic origin. Cervical thymic cysts are a rare form of cervical mass, which are easily overlooked in the differential diagnosis of children presenting with painless neck m...