[Diagnosis of benign laryngeal tumors using neural network]. / Diagnostika dobrokachestvennykh novoobrazovanii gortani s primeneniem neiroseti.

The article describes our experience in developing and training an artificial neural network based on artificial intelligence algorithms for recognizing the characteristic features of benign laryngeal tumors and variants of the norm of the larynx based on the analysis of laryngoscopy pictures obtained during the examination of patients. During the preparation of data for training the neural network, a dataset was collected, labeled and loaded, consisting of 1471 images of the larynx in digital formats (jpg, bmp). Next, the neural network was trained and tested in order to recognize images of the norm and neoplasms of the larynx. The developed and trained artificial neural network demonstrated an accuracy of 86% in recognizing of benign laryngeal tumors and variants of the norm of the larynx. The proposed technology can be further used in practical healthcare to control and improve the quality of diagnosis of laryngeal pathologies.

[Heterogeneous acellular dermal matrix for wound repair after endoscopic Type-â ¤a cordectomy].

Objective:To observe the clinical effect of placing heterogeneous acellular dermal matrix membrane for laryngeal cavity wound healing after CO2 laser Type-Ⅴa cordectomy for glottic carcinoma. Methods:Thirty-five patients with bilateral vocal cord laryngeal cancer who underwent endoscopic CO2 laser surgery at the Department of Otorhinolaryngology Head and Neck Surgery, the Second Xiangya Hospital of Central South University from March 2018 to December 2019 were selected and divided into 2 groups, including 18 patients in the study group and 17 patients in the control group. The control group was simply placed silicone tube stent, while in the study group, heterogeneous acellular dermal matrix membrane was coated with silicone tube stent. The postoperative laryngeal wound repair and clinical manifestations were observed and compared between the two groups. Results:Compared postoperative laryngeal wound after 6 months: no patients in the study group had granulation tissue, whereas 4 patients in the control group had granulation tissue; 3 patients in the study group developed moderate to severe tissue adhesion, while 9 patients in the control group; 10 patients in the control group developed 2nd to 4th degree laryngeal obstruction, compared with only 4 patients in the study group. Conclusion:The primary placement of ADM can reduce laryngeal granulation tissue and tissue adhesion after CO2 laser Type-Ⅴa cordectomy for laryngeal cancer, and may reduce the occurrence of postoperative laryngeal obstruction.

Pectoralis major muscle flap reconstruction after a total laryngectomy widened anteriorly: A case report.

INTRODUCTION AND IMPORTANCE: The pectoralis major flap is one of the leading regional pedicled flaps for reconstructive surgery of the head and neck, particularly in oncology after tumor resection. Despite the increasing use of free flaps, this type of flap is still highly recommended in defined indications. It is a highly reliable flap in terms of viability. CASE PRESENTATION: We report the case of a man treated in our ENT department for a squamous cell carcinoma of the three laryngeal stages, anteriorly very extensive and requiring total laryngectomy extended to the skin and subcutaneous planes opposite, followed by reconstruction with a flap of the pectoralis major muscle. Post-surgical outcome was excellent. CLINICAL DISCUSSION: Aryan was the first person to describe the use of the pectoralis major muscle flap. Since then, several studies have demonstrated the great value of this flap in face and neck reconstruction, thanks to its wide indications and excellent viability rate. CONCLUSION: The pectoralis major muscle flap represents a valuable reconstructive option for substance loss in the cervicofacial region despite the great development of microsurgery and free flaps.

Application of narrow band imaging in the diagnosis of pharyngeal tumors.

BACKGROUND: Narrow-band imaging (NBI) endoscopy is used in various tumor detection and is important in detecting early tumors. OBJECTIVE: To explore the application value of NBI endoscopy in diagnosing pharyngeal tumors. MATERIAL AND METHODS: Ninety-one patients with pharyngeal masses who attended the Department of Otorhinolaryngology, Head and Neck Surgery in Gansu Provincial Hospital from January 2023 to February 2024 were selected, and NBI and white light (WL) endoscopy were applied to examine the pharynx and the relationship between the two was observed. SPSS 25.0 software was used for statistical analysis. RESULTS: The sensitivity of NBI endoscopy for diagnosing laryngeal malignant lesions was 92.0 %, the specificity was 93.0 %, the positive predictive value was 88.5 %, and the negative predictive value was 95.2 %, with a high degree of concordance between the results of NBI endoscopy and the pathology; WL endoscopy had a sensitivity of 64.0 %, a specificity of 76. 7 %, a positive predictive value of 61.5 %, and a negative predictive value of 78.6 %, with WL endoscopic findings had moderate concordance with pathology. The diagnostic accuracy of NBI endoscopy was higher than that of WL endoscopy for both benign and malignant lesions and precancerous lesions. CONCLUSION: NBI endoscopy can detect laryngeal cancer lesions more accurately.

Treatment strategy in laryngeal chondrosarcoma: a multicenter study of 43 cases.

PURPOSE: Laryngeal chondrosarcoma is a rare tumor that mostly affects the cricoid cartilage. The aim of this study was to compare outcomes between the various treatments of this pathology as there are no official guidelines for this pathology. METHODS: A retrospective analysis of the pathology database of nine French tertiary care centers was conducted. Outcomes of patients treated by total laryngectomy were compared with those treated by more conservative approaches (endoscopic debulking, median thyrotomy, partial laryngectomy). Two Kaplan-Meier survival analyses were performed: one to assess the overall survival rate and the other to assess laryngeal preservation over time. RESULTS: A total of 43 patients were enrolled: 12 with total laryngectomy as the initial treatment, and 31 who initially underwent laryngeal-preserving treatment. With conservative treatment, laryngeal function was preserved in 96% and 75% of patients at 1 and 5 years, respectively. Conservative treatment did not reduce the overall survival rate. CONCLUSION: These results suggest that laryngeal preservation should be considered as the initial treatment in cases of laryngeal chondrosarcoma.

Low-grade malignant myofibroblastic sarcoma of the larynx: a case report.

Low-grade myofibroblastic sarcoma (LGMS) is a rare malignant mesenchymal tumor derived from myofibroblasts. It is commonly identified in the head and neck, and particularly in the oral cavity, but rarely in the larynx. In this case report, we describe a patient who presented with hoarseness and underwent electronic fiber laryngoscopy, which revealed a neoplasm on the surface of his left vocal cord. The vocal cord tumor was resected under general anesthesia, and a malignant LGMS was diagnosed on postoperative pathologic examination. The results of immunohistochemical staining of the sections for vimentin (diffuse +), actin (partial +), and desmin (-) were consistent with this diagnosis. The patient recovered well after the surgery, and there was no recurrence of the neoplasm.

The importance of preoperative and perioperative Narrow Band Imaging endoscopy in the diagnosis of pre-tumor and tumor lesions of the larynx.

INTRODUCTION: Narrow band imaging (NBI) is an endoscopic imaging method intended for the diagnosis of mucosal lesions of the larynx that are not visible in white-light endoscopy, but are typical of pre-tumor and tumor lesions of the larynx. THE PURPOSE OF THE STUDY: To compare preoperative/perioperative white light endoscopy and NBI endoscopy with the results of histopathological examinations in pre-tumor and tumor lesions of the larynx. METHODS: A prospective study, over a period of five years (5/2018-5/2023), included 87 patients with laryngeal lesions aged 24-80 years. We evaluated preoperative/ perioperative white light and NBI endoscopy, established a working prehistological diagnosis, and compared this with the definitive histopathological results of laryngeal biopsies. RESULTS: In relation to the definitive histology score, a statistically significant correlation was found between the evaluation of the finding and the definitive histology for preoperative and perioperative white light endoscopy and NBI endoscopy (p < 0.001). Both methods showed higher precision when used perioperatively. CONCLUSION: NBI endoscopy is an optical method that allows us to improve the diagnosis of laryngeal lesions, perform a controlled perioperative biopsy, and refine the surgical scope. The NBI endoscopy is a suitable method for the diagnosis of early cancerous lesions of the larynx. The use of preoperative/perioperative NBI endoscopy allowed us to achieve a high level of agreement correlation (p < 0.001) between the prehistological working diagnosis and the final histopathological result. The NBI method proves its application in the diagnosis of pre-tumor and tumor lesions of the larynx.

Metastatic Renal Cell Carcinoma Masquerading as a Laryngeal Tumor: A Case Report.

Renal cell carcinoma (RCC) commonly metastasizes to various organs such as the lungs, liver, bones, and brain. However, isolated metastases to the head and neck region, especially the larynx, are very rare. This report presents a case of laryngeal growth that was eventually confirmed to be a metastatic deposit from an undiagnosed RCC. We report a case of a 66-year-old male who presented to the clinic with painless neck swelling and a change in voice. The scan showed a soft tissue mass in the thyroid cartilage. Histopathology of the resected laryngeal tumor confirmed metastatic clear cell carcinoma. A metastatic workup revealed a renal mass, and the patient underwent laparoscopic adrenal-sparing left cytoreductive nephrectomy. The histopathological examination established the diagnosis of clear cell RCC. Subsequently, the patient was treated with pembrolizumab and lenvatinib. Follow-up imaging showed no residual or recurrent lesions. This case highlights the rarity of laryngeal metastasis from RCC and the importance of an accurate diagnosis through advanced imaging and histopathological examination.

Glottic Neurofibroma: An Unusual Case Report.

Solitary neurofibromas of the larynx occur sporadically and usually tend to involve the aryepiglottic folds. Non-plexiform variants of neurofibromas involving the glottis are extremely rare and may have defined margins versus plexiform subtype which are often unencapsulated and associated with Von Recklinghausen's disease. We report an unusual case of isolated glottic neurofibroma in an elderly male with gradually progressive hoarseness of voice with stroboscopy findings of a right unilateral, bulky subepithelial lesion mimicking a vocal fold cyst. He underwent laser-assisted trans-oral microlaryngeal surgery and excision of lesion in-toto by micro-flap technique following which histopathological examination reported a neurofibromatous lesion. On performing immunohistochemistry the S-100 protein was positive which confirmed the diagnosis. The patient has been recommended regular follow-up to watch for recurrence.

[Subcutaneous and intramuscular heterotopic calcification of the neck 42 years after radiotherapy]. / Subcutan és intramuscularis heterotop kalcifikáció a nyakon 42 évvel a sugárkezelést követoen.

Radiotherapy-induced heterotopic tissue calcification is an exceedingly rare complication in the head and neck region. We report a patient with extensive, radiotherapy-induced, combined subcutaneous and intramuscular, heterotopic calcification of the neck. An 80-year-old male presented with a 2-month history of severe dysphagia and a painful ulcer on the neck 42 years after salvage total laryngectomy following radiotherapy (total dose: 80 Gy) for a T3N0M0 glottic squamous cell carcinoma. We excluded recurrence or secondary malignancy by biopsy and performed computed tomography, which revealed subcutaneous and intramuscular calcification in the area of the skin ulcer and close to the hypopharyngeal wall, moreover, total occlusion of the common carotid and vertebral arteries bilaterally. Surgical correction involved removing the calcified lesions and closure using fasciocutaneous flap transposition. The patient has been asymptomatic for the past 48 months. Radiotherapy plays an essential role in the treatment of patients with head and neck squamous cell carcinoma. Distorted postoperative anatomy, excessive scar formation, radiotherapy-induced fibrosis as well as skin and subcutaneous tissue calcification can present as atypical findings. Orv Hetil. 2023; 164(10): 383-387.

Aggressive recurrent respiratory papillomatosis: A series of five consecutive patients successfully treated with adjuvant intravenous bevacizumab. A single Belgian academic center experience.

BACKGROUND: Recurrent respiratory papillomatosis (RRP) is a currently incurable benign neoplasm caused by human papilloma virus (HPV) infection. It usually reduces voice, respiratory, and general quality of life, and is sometimes life-threatening. Patients usually need repeated operations. The use of adjuvant bevacizumab, a monoclonal antibody targeting vascular endothelial growth factor A, has been described in several case reports, with a good efficacy and safety profile. METHODS: We report the cases of five patients with aggressive RRP who were treated with adjuvant systemic bevacizumab in a single Belgian tertiary center. RESULTS: A complete response was achieved in four patients after a median of 4.5 months, and a partial response in one. In all cases, the number of surgeries was drastically reduced, and quality of life improved. Toxicity was easily managed. CONCLUSIONS: Systemic bevacizumab seems to be an effective and safe adjuvant treatment for aggressive RRP.

ATYPICAL CARCINOID OF THE LARYNX AND MULTIFOCAL METASTASES.

Neuroendocrine carcinoma (NEC) of the larynx is the most frequent neuroendocrine neoplasm of the head and neck and the most common nonsquamous carcinoma of the larynx. It usually occurs in the supraglottic area, in smoking men. We report a case of a 58-year-old woman with no history of smoking who presented with an atypical carcinoid, arising in the right piriform sinus of the larynx. During the 5-year follow-up, the patient developed metastases in the lymph nodes, palatine tonsils, parotid glands, breasts and skin. For this reason the patient underwent several surgical procedures, radiotherapy and eventually was qualified for chemotherapy. Our case shows that NEC of the larynx can have an atypical presentation. The diagnosis requires careful pathological evaluation with immunohistochemistry and a wide spectrum of imaging. The serum concentration of chromogranin A seems to be not useful in the diagnosis and follow-up of laryngeal NEC.

Surgical Treatment Strategies for Laryngeal Chondrosarcomas: A Single Institution Investigation.

OBJECTIVES/HYPOTHESIS: Laryngeal chondrosarcomas are rare malignancies with a spectrum of presentations due to varying size, local extension, and biological behavior. Moreover, these neoplasms have differing effects on respiration, phonation, and deglutition. Consequently, it is valuable to assess endoscopic and transcervical treatment strategies. STUDY DESIGN: Retrospective case series. METHODS: A retrospective review was done from 2001 to 2020; 25 patients were identified with laryngeal chondrosarcomas. Their tumor pathology and treatment were analyzed. RESULTS: All 25 chondrosarcomas were in the posterior cricoid and arose in proximity to at least one cricoarytenoid joint: 23 of 25 grade I-II (low-mid), one of 25 grade II-III (mid-high), and one of 25 grade III (high). Some tumor was left in 23 of 25 to preserve cricoarytenoid-joint function. There were no known disease-specific deaths (~8-year median follow-up). Final surgical treatment in 24 of 25 was: 13 of 25 transcervical partial laryngectomy, 7 of 25 transoral-endoscopic removal, 4 of 25 total laryngectomy, and 1 of 25 observation. CONCLUSIONS: In this series, unresected intercurrent disease with laryngeal chondrosarcomas was not life-threatening. Therefore, disease was typically left in the posterior cricoid region to preserve mobility of at least one cricoarytenoid joint. This philosophy employed an ultra-function-sparing conservation approach that preserved and/or restored optimal voice, airway patency and swallowing. LEVEL OF EVIDENCE: 4 Laryngoscope, 132:169-176, 2022.

Organ Preservation Strategies in Laryngeal Chondrosarcoma.

OBJECTIVES/HYPOTHESIS: Laryngeal chondrosarcoma (LC) is a rare, slowly growing malignancy. The preferred treatment is laryngeal preservation surgery (LPS). Some patients may require multiple interventions or total laryngectomy (TL). We investigated risk factors for retreatment and TL, and assessed the impact of LPS on oncological and functional outcomes. STUDY DESIGN: Case series METHODS: We searched our institution database for LC. Tumor grading, localization, and margin status were tested as predictors of recurrence and organ preservation. RESULTS: We included 21 patients (seven females, mean age 58 ± 12 years). LPS was applied in 20 (95.2%) of them as a primary procedure. Six patients were treated by transoral approach and 14 received "open-neck" LPS. Fifteen (71.4%) were operated only once, while six patients underwent a total of 15 adjunctive procedures. Additional operations were always performed for recurrence of tumors localized within the cricoid plate. The histological grading was G1 in 81% and G2 in 19%. However, two patients with a primary G1 LC showed a G2 recurrence. Reoperations for recurrence were more frequent among patients with G2 in respect to G1 histology (83% vs. 7%, P < .001). Fifty percent of G2 LC and 8% of G1 underwent TL (P < .05). Margin status had no influence on recurrence rate. CONCLUSIONS: Patients with G2 LC have more recurrences requiring surgery and a higher incidence of TL. Cricoid plate localization is relevant for organ preservation. Margin status signals possible disease persistence, without influencing the need for future surgeries. Need for reoperation entails a risk of not being able to maintain organ functionality. LEVEL OF EVIDENCE: 4 Laryngoscope, 132:838-843, 2022.

Extramedullary Plasmacytoma of False Vocal Cord: Case Report.

Extramedullary plasmacytoma (EMP) is a malignant tumor formed by monoclonal abnormal proliferation of plasma cells, which is mainly characterized by localized masses and very rare in the larynx, particularly in the false vocal cord. We present a larynx EMP that arises from the false cord without systematic involvement. After surgical resection, the patient received adjuvant radiotherapy and was recurrence-free during the 8-month follow-up.

Intraductal Papilloma Arising From the Minor Salivary Glands of the Larynx: A Case Report.

It is rare for intraductal papilloma, a benign papillary tumor, to occur in the salivary glands. To our knowledge, intraductal papilloma occurring in the minor salivary glands of the larynx has not been reported. In this report, we describe a case of intraductal papilloma that occurred in the minor salivary glands of the larynx. A woman in her 30s presented with hoarseness and dyspnea since a year. Fiber-optic laryngoscopy revealed a submucosal tumor involving the left aryepiglottic fold and the left false vocal fold. Computed tomography and magnetic resonance imaging revealed a 17 × 15 × 10 mm3 mass with homogenous isodensity, with regular, well-defined margins located on the left aryepiglottic fold and the left false vocal fold. Surgical resection was performed, and subsequently a diagnosis of intraductal papilloma was made by pathologic evaluation. During the follow-up period of over 3 years, the lesion has not recurred. In conclusion, intraductal papilloma of the minor salivary glands should be considered in the differential diagnosis of laryngeal submucosal tumors.

Laryngeal Manifestation of Nodular Fasciitis: A Case Report and Literature Review.

Nodular fasciitis (NF) are non-neoplastic, fibroblastic lesions, typically located on the trunk and the extremities. The incidence of NF in the head and neck region is 13%-20%. However, a manifestation in the larynx of adult patients is extremely rare. Therefore, the occurrence of NF in this region can lead to diagnostic challenges and a high risk of misdiagnosis as well as potential mishandling when not aware of its possible laryngeal manifestation. Following emergency admission of a 41-year-old woman to the emergency department (ED) due to progressive dyspnea and inspiratory stridor a transnasal flexible laryngeal endoscopic examination revealed a left-lateral, subglottic mass. A subsequently performed CT demonstrated a 2.2 cm x 1.5 cm sized lesion of the subglottic larynx with profound stenosis of the lumen (Myer-Cotton grade III), no extraluminal extension, and no distant metastases. Histopathological processing of a tissue sample obtained by microlaryngoscopy and translaryngeal tracheoscopy revealed a spindle-cell lesion with immunohistochemical and molecular-pathogenic profile of NF. After tumor debulking and steroid infiltration (triamcinolone), a regrowth tendency quickly became apparent, which is why a tracheostomy had to be performed. Laryngectomy was rejected by the patient. After multiple transoral tumor reduction attempts, radiotherapy was performed according to an interdisciplinary tumor board decision to limit regrowth tendency. Subsequently, a substantial reduction of the tumor volume could be seen, although a discreet stenosis of the subglottic tracheal lumen persists in the follow-up. Laryngeal NF poses several challenges due to its rare occurrence in this location. This case report emphasizes the knowledge of this differential diagnosis and also depicts an interdisciplinary therapeutic approach aiming for function-preserving treatment of this benign but potentially relapsing pathology.

Clinicopathologic characteristics of laryngeal chondrosarcoma: An analysis of the National Cancer Database.

OBJECTIVES: Laryngeal Chondrosarcoma (LC) is a rare malignancy with limited studies documenting its clinicopathologic characteristics and treatment options. This study reports demographic and clinical determinants of outcomes for this rare tumor. METHODS: The National Cancer Database (NCDB) was queried for cases of LC reported from 2004-2016. 274 cases that met inclusion criteria were analyzed for demographic and clinicopathologic characteristics. Kaplan-Meier (KM) and Cox proportional hazard analyses were conducted to identify variables that impacted the overall survival of these patients. RESULTS: LC was found to be more common in males (74.8%). The mean age of patients was 61.8 years and 92.3% of the patients were white. 91.3% of patients were treated with only surgical resection, most commonly: partial laryngectomy (31.6%), total laryngectomy (25.7%), and local resection (22.4%). 98.8% of patients had no evidence of nodal disease and 99.6% of patients did not have distant metastasis at presentation. KM analysis revealed a 5-year overall survival (5YOS) of 89.0%. Age, insurance status, facility type, and surgery type were significant predictors of 5YOS (p<0.05). On Cox Proportional Hazard analysis, private insurance significantly improved survival (HR 0.21; p = 0.048) while increasing age was a poor prognostic indicator (HR 1.10; p = 0.004). CONCLUSION: The majority of LC patients present with no nodal involvement or distant metastasis at diagnosis, and overall this tumor has a favorable prognosis. Increasing age was found to be a poor prognostic factor while private insurance status was associated with improved survival.

Laryngeal Inflammatory Myofibroblastic Tumor With Anemia and Thrombocytosis.

Inflammatory myofibroblastic tumor (IMT) of the larynx is a rare benign lesion that commonly occurs in the soft tissues. We present the first case with systemic manifestations of laryngeal IMT that was associated with hypochromic, microcytic-type anemia and thrombocytosis.

Laryngeal Solitary Fibrous Tumor: A Case Report and Systematic Review.

OBJECTIVES/HYPOTHESIS: Solitary fibrous tumors are spindle cell neoplasms of mesenchymal origin that rarely occur in the larynx and may be mistaken for other pathologies. This case presentation and systematic review investigates presentation, treatment modalities, and outcomes of this unusual tumor. STUDY DESIGN: Systematic review of PubMed, CINAHL, Web of Science, and EMBASE including a novel case presentation METHODS: A systematic search according to the PRISMA guidelines was performed to isolate the reports of solitary fibrous tumors arising in the larynx and its subsites. Variables analyzed included patient demographics, presenting symptoms, smoking status, concurrent tumors, imaging studies, biopsy results, treatment, outcomes, and follow-up. Our additional report provides the second such description of this lesion originating within the true vocal fold. RESULTS: Systematic review revealed 21 previous reports of solitary fibrous tumors originating from laryngeal subsites. The most common presenting symptom was dysphonia. All patients underwent local excision. Two patients had recurrences. Our patient presented with progressive dysphonia over 4 years. Stroboscopic examination revealed a large translucent mass of the left vocal fold. Local excision of the tumor was achieved with transoral resection with KTP laser. Immunohistochemical staining demonstrated a strong positivity for CD34 and HMW CK34BE12. Nine-month follow-up has not revealed any evidence of persistent or recurrent disease. CONCLUSION: Laryngeal solitary fibrous tumors are rare and are unlikely to recur in the absence of malignant findings. Complete surgical resection is an acceptable treatment for this lesion accompanied by appropriate follow-up.