title: A Case Report: A Third/Fourth Branchial Pouch Anomaly Presented by Solid Thyroid and Lateral Cervical Neck Masses.
abstract: Branchial pouch-derived anomalies may arise from remnants of the first, second, or third/fourth branchial arches. Branchial pouch-related structures are found within the thyroid gland in the form of solid cell rests, epithelial lined cyst with or without an associated lymphoid component, thymic and/or parathyroid tissue, and less commonly in the form of heterotopic cartilage. We present a rare case of left solid thyroid swelling nearby two cervical nodules in a seven-year-old female with a clinical diagnosis suggestive of malignant thyroid tumor with metastasis to the cervical lymph nodes. Histopathological examination revealed that it was compatible with third/fourth branchial pouch-derived anomaly composed of mature cartilage and thymic and parathyroid tissues for clinical and radiological correlations.
authors.affiliation: Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
authors.forename: Magda H A
authors.initials: MH
authors.lastname: Nasreldin
authors.affiliation: Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
authors.forename: Eman A
authors.initials: EA
authors.lastname: Ibrahim
authors.affiliation: Pathology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt.
authors.forename: Somaia A
authors.initials: SA
authors.lastname: Saad El-Din
keywords: anomaly; branchial pouch; cartilage; parathyroid gland; thymus; thyroid gland
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