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The Thyroid Gland

The Thyroid Gland

The thyroid gland is a small, butterfly-shaped gland located in the neck and covers the anterior surface of the trachea. The gland has two lateral lobes connected by a thin tissue mass called the isthmus. Internally, each lobe comprises many small spherical structures known as thyroid follicles, surrounded by a network of blood vessels.
The follicles have a central cavity lined by simple cuboidal to squamous epithelial cells called follicular cells. These cells produce the glycoprotein...

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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.

|June 24, 2022

Summary

Ectopic cervical thymus, a rare condition, can cause neck masses in infants. Early diagnosis is crucial for appropriate management and to prevent complications.

Keywords:

ectopic cervical thymus ectopic thymus neck mass pediatrics thymus gland

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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.