This composite clinical photograph displays a dissected human larynx, providing a detailed anatomical study of the perilaryngeal structures. The left panel shows a frontal (anterior) view of the larynx and upper trachea. Key visible structures include the thyroid cartilage, cricoid cartilage, and the intervening cricothyroid ligament. Striated muscle fibers and connective tissues are seen superiorly near the hyoid region, while the trachea is identifiable inferiorly by its characteristic horizontal cartilaginous rings. The right panel presents a midsagittal section, exposing the internal laryngeal cavity. This view highlights the contrast between the external yellowish connective tissues and the darker, brownish mucosal lining of the airway. Anatomical landmarks such as the epiglottis, laryngeal vestibule, and the posterior plate of the cricoid cartilage are visible in cross-section. These images are typically used in surgical anatomy or otolaryngology to study the morphometry of the cricothyroid ligament and laryngeal dimensions for procedures like cricothyrotomy or endotracheal intubation training.

This diagnostic clinical image, likely obtained via endoscopic laryngoscopy, illustrates the complex vascular anatomy of the left larynx. The photograph focuses on the branching patterns of the superior laryngeal artery (SLA) in relation to key endolaryngeal structures. Visible landmarks include the epiglottis (E) superiorly, the laryngeal lumen (L), the left arytenoid region (AL), and the thyroid cartilage (T). A specific branch of the SLA is highlighted, demonstrating a caudal and lateral course marked with an asterisk (*). This vessel is seen traversing the paraglottic space and exiting the larynx in close proximity to the lower horn (H) of the thyroid cartilage. The image serves as an educational tool for identifying surgical landmarks and understanding the varied arterial supply to the laryngeal mucosa and intrinsic muscles, which is critical for phonosurgery and oncologic resections to avoid intraoperative hemorrhage.

This multi-panel educational figure illustrates the comparative anatomy of the laryngeal apparatus in a mouse model, relevant to mammalian developmental biology. Panel A provides a schematic ventral view of the larynx, designating sectional planes for horizontal (C-E) and sagittal (F) orientations. Panel B shows a whole-mount adult larynx stained with Alcian Blue to highlight cartilaginous structures, including the thyroid cartilage (TC), cricoid cartilage (CC), and tracheal rings (Tr). Panels C, D, and E display Hematoxylin and Eosin (H&E) stained horizontal sections of an E18.5 embryonic larynx paired with corresponding anatomical diagrams. These sections demonstrate the spatial relationship between the esophagus (E), glottis (G), and laryngeal muscles such as the thyroarytenoid (TAM) and vocalis (VM). Panel F presents a midline sagittal H&E section with a detailed diagram identifying the vocal fold (VF) complex, including the vocal ligament (VL), lateral cricoarytenoid muscle (LCA), and thyroglottal connective tissue (TgCT). The figure utilizes standard dorso-ventral (D-V) axes to orient the development and arrangement of the laryngeal skeleton and soft tissue components.

Axial contrast-enhanced CT scan of the neck at the level of the larynx. The image demonstrates a large, heterogeneously enhancing mass measuring approximately 5 x 5.7 cm, centered in the left laryngeal region. Key findings include the complete destruction of the left thyroid cartilage and medial extension of the tumor, which significantly compresses the laryngeal ventricle and narrows the airway at the level of the vocal cords. The mass exhibits central areas of decreased attenuation (suggestive of necrosis or cystic components) and early punctate calcifications. Disruption of normal anatomy is evident through the lateral displacement and compression of the left carotid sheath and sternocleidomastoid muscle. The lesion extends superiorly toward the hyoid bone, obliterating the left pyriform sinus. This diagnostic image illustrates the local invasiveness typical of primary laryngeal bone or cartilage tumors, such as chondrosarcoma or giant cell tumor of the larynx.

Two side-by-side axial contrast-enhanced CT scans of the neck at the level of the larynx, demonstrating preoperative and postoperative anatomy for laryngeal carcinoma. Image (A) shows the preoperative state with an asymmetric soft tissue mass involving the left vocal fold, causing narrowing of the glottic airway. The thyroid cartilage appears intact but adjacent to the primary lesion. Image (B) displays the postoperative anatomy six months after surgical intervention (likely a partial laryngectomy or supracricoid laryngectomy). Notably, the thyroid cartilage has been removed, resulting in a reconstructed neolarynx with a patent, wider airway compared to the preoperative scan. Both images clearly visualize the cervical vertebrae, posterior neck musculature, and carotid sheath vasculature. This comparison illustrates the radical alteration of laryngeal architecture following oncological resection and surgical reconstruction for throat cancer.

This diagnostic image is an axial contrast-enhanced CT scan of the neck at the level of the larynx. The image demonstrates a significant soft-tissue nodular lesion originating from the left glottic and subglottic region. A hallmark of this pathology is the visible partial destruction and infiltration of the left thyroid cartilage, along with suspected involvement of the cricoid ring and ipsilateral arytenoid cartilage. The mass results in substantial narrowing and displacement of the laryngeal airway lumen toward the right. Adjacent soft tissue structures show bilateral cervical lymph node hyperplasia. This visual evidence is characteristic of an invasive laryngeal neoplasm, such as adenoid cystic carcinoma, highlighting the clinical significance of CT in assessing cartilage invasion and airway compromise for surgical planning. The scan is a key educational resource for identifying laryngeal anatomy, cartilage landmarks, and signs of malignant infiltration in head and neck oncology.

This diagnostic comparison image consists of two high-frequency airway ultrasound scans (a and b) in a longitudinal orientation, illustrating normal versus traumatic sonoanatomy of the larynx. Image 'a' demonstrates a normal airway with a continuous, linear hyperechoic interface (arrowheads) representing the intact air-mucosal interface. Key anatomical structures identified include the hypoechoic thyroid cartilage (TC) and cricoid cartilage (CC). Image 'b' displays pathological findings following blunt neck trauma. The air-mucosal interface is notably disrupted (arrowhead), indicating loss of mucosal integrity. A highlighted region (orange box) reveals a fracture of the cricoid cartilage and the development of an endolaryngeal hematoma, characterized by heterogenous echogenicity within the soft tissues. These images serve as an educational resource for medical professionals and students in emergency medicine and radiology to differentiate normal laryngeal anatomy from significant laryngeal trauma, such as cartilage fractures and internal soft tissue injuries, using point-of-care ultrasound (POCUS).

This clinical photograph displays a surgical setup on a harvested larynx to demonstrate the application of custom laryngeal clamps used in laryngoplasty. Two U-shaped stainless steel clamps are positioned bilaterally on the caudoventral margins of the thyroid cartilage laminae, labeled 'R' and 'L' for right and left. Each clamp consists of a short dorsal arm and a long ventral arm, which wrap around the caudal edge of the cartilage. A thick green polyester suture is integrated into each construct. The suture path involves threading through dual holes in the dorsal arm of the clamp, passing through a pre-drilled hole in the thyroid cartilage, and finally through a slit on the clamp's dorsal arm. This arrangement is designed to reinforce the anchorage point on the cartilage, distributing mechanical load to prevent cartilage tearing during laryngoplasty maneuvers. The setup is mounted on a mechanical base for biomechanical testing, illustrating the structural relationship between the prosthetic implants, the suture, and the cartilaginous anatomy.