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Published on: November 10, 2014
Solid Ectopic Cervical Thymus: A Case Report
Ashraf A Alnosair1, Lojain A Alnosair2, Ali A Almohammed Saleh3
1Pediatric Surgery, Almoosa Specialist Hospital, Al-Ahsa, SAU.
Insights
Ectopic cervical thymus, a rare condition, can cause neck masses in infants. Early diagnosis is crucial for appropriate management and to prevent complications.
Area of Science:
- Pediatric Surgery
- Developmental Biology
- Immunology
Background:
- The thymus gland, a primary lymphoid organ, is typically situated in the anterior mediastinum.
- Aberrant locations of the thymus, such as along the thymopharyngeal canal, are uncommon but can occur.
- Ectopic thymic tissue may present as neck masses, potentially causing respiratory or feeding issues in infants.
Observation:
- A case report details a 10-month-old male infant with a nine-month history of a left-sided neck swelling.
- Initial investigations suggested four potential differential diagnoses for the neck mass.
- Surgical excision was performed for definitive histopathological diagnosis.
Findings:
- Histopathological examination confirmed the presence of an ectopic cervical thymus.
- The ectopic thymus was identified as the cause of the pediatric neck mass.
- This case highlights a rare presentation of thymic tissue outside its normal mediastinal location.
Implications:
- Considering ectopic cervical thymus in the differential diagnosis of pediatric neck masses is essential.
- Accurate diagnosis can prevent unnecessary invasive procedures and potential surgical complications.
- Understanding rare anatomical variations of the thymus aids in pediatric surgical planning and patient care.
Abstract:
The thymus gland is a lymphoid organ normally located in the superior anterior mediastinum. It can rarely present abnormally in other sites along the thymopharyngeal canal and it might cause difficulties in breathing and/or feeding. We present a case report of an ectopic cervical thymus of a 10-month-old male infant who was presented to the hospital with a swelling on the left side of his neck for nine months. Investigations raised suspicion about four differential diagnoses and a total surgical excision for histopathological confirmation was deemed mandatory. It is of great importance to consider ectopic cervical thymus in the differential diagnosis of pediatric neck masses to avoid unnecessary procedures and prevent possible complications.

