This clinical photograph displays an intraoperative view of the neck during a thyroidectomy procedure, focusing on the surgical anatomy of the thyroid bed before the application of methylene blue. The primary anatomical structures are labeled for educational identification: the thyroid gland (T) is visible as a superiorly located, reddish-brown vascular mass held by surgical forceps; the recurrent laryngeal nerve (R) is identified as a thin, pale, linear structure in the tracheoesophageal groove inferior to the thyroid lobe; and a parathyroid gland (P) is shown as a small, yellowish-tan nodule situated adjacent to the nerve and posterior thyroid capsule. The surgical field includes various instruments, such as retractors and forceps used for tissue manipulation, and black silk sutures are visible throughout the dissection site. This image serves as a clinical anatomical guide for identifying critical structures that must be preserved during endocrine surgery to prevent vocal cord paralysis or hypocalcemia. It illustrates the standard surgical topography and the natural appearance of these tissues in an active surgical field.

This clinical photograph shows an intraoperative view of a thyroidectomy or neck dissection, highlighting the surgical anatomy of the thyroid gland, thymus, and inferior parathyroid gland (IPG). The thyroid gland is a large, reddish, vascularized structure visible on the left side. Surgical forceps are used to retract the thymus, an elongated, yellowish-tan tissue located superior and lateral to the thyroid. The IPG is visible as a small, distinct ovoid nodule closely associated with the superior aspect of the thymic capsule, circled and labeled in blue. This visual demonstrates the 'in situ reservation' technique, where the IPG and thymus are preserved as an organic unit to maintain parathyroid blood supply during central lymph node dissection. The surgical field displays exposed soft tissue, retractor placement, and visible vasculature, providing educational context for endocrine surgeons and residents regarding the preservation of parathyroid function.

This composite of clinical photographs illustrates the preoperative preparation and intraoperative evaluation for thyroid surgery. Panel A shows a patient in the supine position under general anesthesia, with the neck extended to provide optimal exposure of the anterior cervical region. The visible anatomy includes the lower mandible, the submental and anterior neck areas, and the superior thoracic inlet. Panel B demonstrates the application of an 8–12 MHz linear ultrasound transducer on the skin surface for the ultrasonographic evaluation of the thyroid gland. Purple surgical ink markings on the neck denote the midline and key anatomical landmarks or intended incision pathways, including a dotted line and directional arrows. This sequence highlights the importance of patient positioning and the use of intraoperative ultrasonography for precise volumetric measurement and surgical planning in endocrine surgery, such as total thyroidectomy.

This clinical photograph displays an intraoperative view of a deep surgical dissection in the left lateral neck during a fistula repair procedure. The strap muscles have been retracted or partially removed to expose the visceral compartment of the neck. Key anatomical landmarks are identified with labels: the thyroid gland is visible as a reddish, vascularized lobular structure, and a parathyroid gland is indicated as a smaller, yellowish-tan nodule located on the posterior aspect of the thyroid. The surgical field also demonstrates the recurrent laryngeal nerve pathway and surrounding adipose tissue. Surgical instruments are in use, including an electrocautery probe held by a gloved hand and hemostatic clamps for tissue retraction. The image serves as an educational reference for surgical anatomy of the thyroid and parathyroid glands, nerve preservation techniques, and the management of cervical fistulae. This material is relevant for surgical training in otorhinolaryngology and endocrine surgery.

A clinical photograph of an adult male depicting a prominent midline neck mass, consistent with a thyroglossal duct cyst. The patient's neck is slightly extended, revealing a well-circumscribed, ovoid, and globular swelling located in the anterior midline of the neck, specifically at the level of the hyoid bone and inferior to the submental region. The overlying skin is intact and appears unremarkable, without signs of erythema, inflammation, ulceration, or fistulous tracts. This visual presentation is characteristic of a congenital thyroglossal duct anomaly, which typically manifests as a painless, mobile midline mass that often moves superiorly with tongue protrusion or swallowing. The image serves as a clinical example for Otolaryngology and General Surgery education, emphasizing the anatomical localization and physical characteristics necessary for the differential diagnosis of midline neck swellings, such as dermoid cysts or ectopic thyroid tissue.

This diagnostic ultrasound image in the transverse plane depicts a large, well-circumscribed thyroglossal duct cyst in the anterior midline of the neck. The cyst is primarily anechoic to hypoechoic, indicating a clear fluid-filled interior, and exhibits smooth, well-defined borders. A key anatomical feature is the presence of an associated thyroglossal tract extending from the cyst wall, which is demarcated by two electronic calipers (plus-sign markers). This tract appears as a linear, moderately echogenic structure extending superiorly toward the hyoid bone region. A small, focal echogenic projection or internal debris is visible along the left inner margin of the cyst. The image demonstrates typical sonographic findings used to diagnose thyroglossal duct anomalies and evaluate their relationship to surrounding midline neck structures, which is essential for pre-surgical planning of a Sistrunk procedure.

Clinical photograph of a pediatric patient's neck, viewed from an inferior-anterior perspective (looking up toward the chin). The image demonstrates a prominent, well-circumscribed, midline cystic swelling in the anterior neck, located superior to the thyroid cartilage. The overlying skin appears normal with no visible erythema, inflammation, or ulceration. The morphology is characteristic of a thyroglossal duct cyst, a common congenital abnormality occurring along the descent pathway of the thyroid gland. In this clinical context, such a mass often contains ectopic functional thyroid tissue and typically moves upward upon protrusion of the tongue or swallowing. The visual findings illustrate a classic presentation of a midline neck mass in childhood, serving as an educational example for differential diagnosis in pediatric otolaryngology and endocrinology, specifically regarding ectopic thyroid tissue and thyroglossal duct remnants.