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Ferlito A. Some Considerations on Laryngeal Neuroendocrine Neoplasms. Oncol Ther 2024; 12:197-201. [PMID: 38520635 PMCID: PMC11187011 DOI: 10.1007/s40487-024-00273-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2024] [Accepted: 03/11/2024] [Indexed: 03/25/2024] Open
Affiliation(s)
- Alfio Ferlito
- International Head and Neck Scientific Group, Padua, Italy.
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Mesolella M, Allosso S, Buono S, Ricciardiello F, Motta G. Neuroendocrine carcinoma of the larynx with Lambert-Eaton myasthenic syndrome: a rare case report and literature review. J Int Med Res 2021; 49:3000605211014784. [PMID: 33983073 PMCID: PMC8127768 DOI: 10.1177/03000605211014784] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
This current report describes a rare clinical case of neuroendocrine carcinoma (NEC) of the larynx with associated Lambert-Eaton myasthenic paraneoplastic syndrome (LEMS). A 68-year-old male patient presented with severe dysphonia and dysphagia. He underwent a total laryngectomy and the excised lesion was extremely large. A pathological examination demonstrated ‘morphological findings of a poorly differentiated carcinoma (G3) with aspects of neuroendocrine differentiation’ (i.e. a poorly differentiated neuroendocrine carcinomas [PD-NEC]). Based on the patient’s medical history and the immunohistochemical findings, he was treated with three cycles of neoadjuvant chemotherapy (cisplatin–etoposide) and then radiotherapy with a total dose of 70 Gy. Of the 10 cases of paraneoplastic syndrome (PNS) related to laryngeal NEC reported in the literature, nine of these syndromes were of an endocrine type. Only one case of PNS associated with laryngeal cancer had a neurological manifestation, which was LEMS. To the best of our knowledge, this current case has only one similar precedent in the literature and it is the second report of an association between a PD-NEC and LEMS. Laryngeal NECs are rare lesions with different prognostic characteristics. The diagnosis should be made using an endocrinological, neurological, radiological and histological multidisciplinary approach. A radical surgical approach is recommended.
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Affiliation(s)
- Massimo Mesolella
- Unit of Otorhinolaryngology, Department of Neuroscience, Reproductive Sciences and Dentistry, Federico II University of Naples, Naples, Italy
| | - Salvatore Allosso
- Unit of Otorhinolaryngology, Department of Neuroscience, Reproductive Sciences and Dentistry, Federico II University of Naples, Naples, Italy
| | - Sarah Buono
- Unit of Otorhinolaryngology, Department of Neuroscience, Reproductive Sciences and Dentistry, Federico II University of Naples, Naples, Italy
| | | | - Gaetano Motta
- Unit of Otorhinolaryngology, University Luigi Vanvitelli, Napoli, Italy
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3
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Rinaldo A, Coca-Pelaz A, Silver CE, Ferlito A. Paraneoplastic Syndromes Associated with Laryngeal Cancer. Adv Ther 2020; 37:140-154. [PMID: 31802393 PMCID: PMC6979447 DOI: 10.1007/s12325-019-01160-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Indexed: 12/16/2022]
Abstract
OBJECTIVES Paraneoplastic syndromes occur rarely in association with laryngeal cancer. When present, the syndrome may be the first sign of the malignancy. The aim of the present study was to review and report on all published cases in the international literature. METHODS A search of PubMed was conducted for "paraneoplastic syndromes in laryngeal cancer" without any restrictions on language or publication year. The full texts of all relevant articles were reviewed and all cases of paraneoplastic syndromes associated with any type of laryngeal cancer were extracted and analyzed. RESULTS We identified 59 cases of paraneoplastic syndromes related to laryngeal cancer in the literature published from 1963 until recently. There were 46 squamous cell carcinomas and 10 neuroendocrine carcinomas. Twenty-two of the paraneoplastic syndromes involved the endocrine system, 21 were dermatologic or cutaneous, 8 neurologic, 5 osteoarticular or rheumatologic, 1 ocular, 1 muscular, and 1 hematologic. Treatment strategies included surgery, radiotherapy, chemotherapy, and often multimodal therapy, depending on the histology and stage of the laryngeal cancer. CONCLUSIONS Because of their rarity, paraneoplastic syndromes associated with laryngeal cancer are difficult to diagnose. By presenting and systematically reviewing all published cases in the international literature, the present review may help clinicians to recognize them and to suspect the diagnosis of laryngeal cancer at an earlier stage than otherwise might be possible.
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Affiliation(s)
| | - Andrés Coca-Pelaz
- Department of Otolaryngology, Hospital Universitario Central de Asturias, Oviedo, Spain
- Instituto de Investigación Sanitaria del Principado de Asturias, IUOPA, CIBERONC, Oviedo, Spain
| | - Carl E Silver
- Department of Surgery, University of Arizona College of Medicine, Phoenix, AZ, USA
| | - Alfio Ferlito
- International Head and Neck Scientific Group, Padua, Italy.
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4
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Strojan P, Hernandez-Prera JC, Beitler JJ, Eisbruch A, Saba NF, Mendenhall WM, Nieto CS, Smee R, Rinaldo A, Ferlito A. Small cell and large cell neuroendocrine carcinoma of the larynx: A comparative analysis. Cancer Treat Rev 2019; 78:42-51. [DOI: 10.1016/j.ctrv.2019.08.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/06/2019] [Indexed: 02/07/2023]
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5
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Pytal M, Olejniczak I, Kupnicki P, Trenda-Lewy I, Michalecki Ł. The small cell carcinoma neuroendocrine type of the larynx—Case report. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.poamed.2016.06.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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6
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Ferlito A, Rinaldo A. Paraneoplastic Syndromes in Patients with Cancer of the Larynx and Hypopharynx. Ann Otol Rhinol Laryngol 2016; 116:502-13. [PMID: 17727081 DOI: 10.1177/000348940711600705] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Paraneoplastic syndromes may be the first sign of a malignancy. They are systemic, nonmetastatic manifestations associated with a variety of malignant neoplasms and occurring in a minority of cancer patients. These associations of symptoms and signs are not directly related to the site or local manifestations of a malignant tumor or its metastases, but their recognition may facilitate the detection of malignancies or recurrences. Paraneoplastic syndromes are categorized into 6 types: Dermatologic or cutaneous, endocrine, hematologic, neurologic, osteoarticular or rheumatologic, and ocular. Different oncotypes have rarely been associated with paraneoplastic syndromes in patients with cancer of the larynx and hypopharynx. The world literature has been reviewed.
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Affiliation(s)
- Alfio Ferlito
- Department of Surgical Sciences, ENT Clinic, University of Udine, Udine, Italy
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7
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Paraneoplastic syndromes in patients with laryngeal neuroendocrine carcinomas: clinical manifestations and prognostic significance. Eur Arch Otorhinolaryngol 2014; 273:533-6. [DOI: 10.1007/s00405-014-3351-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Accepted: 10/20/2014] [Indexed: 12/15/2022]
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8
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van der Laan TP, Plaat BEC, van der Laan BFAM, Halmos GB. Clinical recommendations on the treatment of neuroendocrine carcinoma of the larynx: A meta-analysis of 436 reported cases. Head Neck 2014; 37:707-15. [PMID: 24596175 DOI: 10.1002/hed.23666] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Revised: 12/14/2013] [Accepted: 03/02/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Current recommendations on the treatment of neuroendocrine carcinoma of the larynx (NCL) are based on anecdotal evidence. With this meta-analysis, our purpose was to provide clinicians with more substantiated guidelines in order to improve the treatment outcome of the patients affected with NCL. METHODS A structured literature search for all research concerning NCL was performed against the MEDLINE and EMBASE databases. Available data was normalized, pooled, and statistically analyzed. RESULTS Four hundred thirty-six cases of NCL were extracted from 182 studies, of which 23 were typical carcinoid, 163 were atypical carcinoid, 183 were small-cell neuroendocrine carcinoma, 29 were large-cell neuroendocrine carcinoma, and 38 were unspecified carcinoid tumors. The 5-year disease-specific survival (DSS) was 100% for typical carcinoid, 53% for atypical carcinoid, 19% for small-cell neuroendocrine carcinoma, and 15% for large-cell neuroendocrine carcinoma (p < .001). Patients with an atypical carcinoid treated with surgery had better DSS than those treated with radiotherapy (60% vs 54%; p = .035). Postoperative radiotherapy did not result in better DSS in atypical carcinoid. Patients with an atypical carcinoid, not undergoing surgical treatment of the neck, developed isolated regional recurrence in 30% of cases (p = .001). Radiochemotherapy yielded the best DSS for small-cell neuroendocrine carcinoma compared to other modalities (31% vs 13%; p = .001). CONCLUSION Typical carcinoid can be treated by local excision alone. Atypical carcinoids do not seem to respond well to radiotherapy and are best managed through radical surgical excision in combination with elective neck dissection. Patients with small-cell neuroendocrine carcinoma or large-cell neuroendocrine carcinoma seem to benefit most from chemoradiotherapy.
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Affiliation(s)
- Tom P van der Laan
- Department of Otolaryngology, Head and Neck Surgery, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
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9
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Ferlito A, Rinaldo A. Primary and secondary small cell neuroendocrine carcinoma of the larynx: A review. Head Neck 2008; 30:518-24. [DOI: 10.1002/hed.20797] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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10
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Abstract
Extrapulmonary small cell carcinomas (EPSCCs) are uncommon malignant neoplasms with a reported incidence of 0.1% to 0.4% in the United States. Since their first description in 1930, they have been seen in nearly every organ system. Like their more common pulmonary counterparts, EPSCCs are thought to arise from a multipotential stem cell. However, there is recent molecular evidence that small cell elements may arise as a late-stage phenomenon in the genetic progression of more organ-typical carcinomas. The morphologic, immunohistochemical, and ultrastructural features are similar to those described in pulmonary small cell carcinomas (PSCCs). The differential diagnosis of EPSCC includes PSCC, other neuroendocrine tumors, small round blue cell tumors, metastatic melanoma, lymphoma, and poorly differentiated non-small cell carcinomas. Molecular alterations reported to occur in EPSCCs include abnormalities described in PSCC and changes found in carcinomas more typically encountered in the organ from which they arise. In this article we discuss the pathology of EPSCC with a review of theories of histogenesis, sites of occurrence, diagnostic features, differential diagnosis, molecular alterations, and clinical behavior.
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Affiliation(s)
- Shellaine R Frazier
- Department of Pathology and Anatomical Sciences, University of Missouri School of Medicine, Columbia, MO 65212, USA.
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11
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Abstract
Small cell carcinoma (SCC) has become recognized as a distinct, though relatively infrequent, clinical pathology that occurs in multiple sites throughout the head and neck. Excluding cases that are considered to arise from skin, SCC in the head and neck has been found to develop in nearly all structures associated with the upper aerodigestive tract. Among the head and neck sites, the frequency of SCC is greatest in the larynx, with salivary glands and the sinonasal region comprising the other principle areas of origin. Controversy exist as to whether SCC can develop as a distinct entity in the thyroid, with most tumors that previously would have been considered as SCC now found to be lymphomas or variant forms of other types of thyroid malignancy. While there seems to be some differences among tumors arising from the various subsites, in general all SCC that originate in the head and neck have a tendency for aggressive local invasion and a strong propensity for both regional and distant metastasis. Treatment may include surgical resection, radiotherapy, chemotherapy, or some combination of these modalities. Due to the infrequency of these tumors, it is very unlikely that any large, controlled study will ever be done. For this reason, recommendations for treatment of SCC arising in the head and neck are based primarily on retrospective data from various small case series and on comparative data for treatment of SCC of bronchogenic and other extrapulmonary origin. Although patients with truly limited local disease may enjoy some prolonged survival, most patients with this tumor do poorly despite all current attempts at treatment.
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Affiliation(s)
- Gregory Renner
- Department of Otolaryngology - Head and Neck Surgery, University of Missouri School of Medicine, Columbia, MO 65212, USA.
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12
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Ferlito A, Elsheikh MN, Manni JJ, Rinaldo A. Paraneoplastic syndromes in patients with primary head and neck cancer. Eur Arch Otorhinolaryngol 2007; 264:211-22. [PMID: 17206403 DOI: 10.1007/s00405-006-0217-5] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2006] [Accepted: 12/06/2006] [Indexed: 11/12/2022]
Abstract
Paraneoplastic syndromes represent the clinical manifestations of the indirect and remote effects produced by tumor metabolites or other products. The clinical spectrum of the various paraneoplastic syndromes related to primary malignancies of the head and neck region is presented. A review of the literature on paraneoplastic syndromes in patients with primary head and neck cancer was carried out. Paraneoplastic syndromes related to primary malignancies of the head and neck region can be categorized as: endocrine, cutaneous or dermatologic, hematologic, neurologic, osteoarticular or rheumatologic, ocular syndromes. Sometimes, paraneoplastic syndromes can be more serious than the consequences of the primary tumor itself and can precede, follow or be concurrent to the diagnosis of a malignancy; moreover, they can dominate the clinical picture and thus lead to errors with respect to the origin and type of the primary tumor. Physicians who deal with cancer-associated syndromes should be able to differentiate the paraneoplastic syndromes from the benign disorders that mimic them. Patients with a suspected paraneoplastic disorder should undergo a complete panel of laboratory studies, in addition to imaging studies and endoscopy. Identification of paraneoplastic syndromes allow the clinician to make an early diagnosis and to provide adequate treatment of tumors, with a favorable oncologic outcome and improved life expectancy for the patient. These syndromes can follow the clinical course of the tumor and thus be useful for monitoring its evolution.
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Affiliation(s)
- Alfio Ferlito
- Department of Surgical Sciences, ENT Clinic, University of Udine, Policlinico Universitario Piazzale S. Maria della Misericordia, 33100, Udine, Italy.
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13
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Ferlito A, Devaney KO, Rinaldo A. Neuroendocrine neoplasms of the larynx: Advances in identification, understanding, and management. Oral Oncol 2006; 42:770-88. [PMID: 16815077 DOI: 10.1016/j.oraloncology.2006.01.002] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2005] [Accepted: 01/06/2006] [Indexed: 10/24/2022]
Abstract
While 85-90% of laryngeal malignancies prove to be squamous carcinomas, the second most common tumour type found in the laryngeal region will prove to be a member of the family of neuroendocrine tumours. Laryngeal carcinoid tumours have a capacity for metastasis, and so are more aggressive tumours than their light microscopic features might imply--5-year survival rates are in the vicinity of 50%. Laryngeal atypical carcinoid tumours are lesions with a well-recognized capacity for local recurrence as well as metastasis, with a 5-year survival of just under 50%. Laryngeal small cell neuroendocrine carcinomas are particularly aggressive tumours, with a 5-year survival of no more than 5-10%. Laryngeal paragangliomas are lesions without any real capacity for metastasizing. Surgical excision is the mainstay of treatment of carcinoid tumours, atypical carcinoid tumours, and paragangliomas. Small cell neuroendocrine carcinomas are chiefly treated by way of radiation and chemotherapy; the role of adjuvant therapy in the treatment of atypical carcinoid tumours remains to be established.
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Affiliation(s)
- Alfio Ferlito
- Department of Surgical Sciences, ENT Clinic, University of Udine, Policlinico Universitario, Piazzale S. Maria della Misericordia, I-33100 Udine, Italy.
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14
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Sano M, Kitahara N, Toma M. Hypopharyngeal small cell carcinoma: A case report. Auris Nasus Larynx 2005; 32:319-22. [PMID: 15927428 DOI: 10.1016/j.anl.2005.03.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2004] [Revised: 02/02/2005] [Accepted: 03/25/2005] [Indexed: 11/15/2022]
Abstract
We report a 67-year-old woman with small cell carcinoma of the hypopharynx, a very rare entity with few reports. Our treatment consisted of carboplatin (CBDCA) and etoposide (VP-16) in the same way as small cell carcinoma of the lung is treated. This achieved a complete response. Our case suggests that chemotherapy with carboplatin and etoposide is effective for small cell carcinoma of the hypopharynx.
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Affiliation(s)
- Masaki Sano
- Department of Otorhinolaryngology and Head & Neck Surgery, Graduate School of Medicine and Faculty of Medicine University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655, Japan.
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15
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Rinaldo A, Devaney KO, Ferlito A. Immunohistochemical studies in support of a diagnosis of small cell neuroendocrine carcinoma of the larynx. Acta Otolaryngol 2004; 124:638-41. [PMID: 15267186 DOI: 10.1080/00016480410016540] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Alessandra Rinaldo
- Department of Surgical Sciences, ENT Clinic, University of Udine, Udine, Italy
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Ferlito A, Shaha AR, Rinaldo A. Paraneoplastic syndromes in neuroendocrine neoplasms of the head and neck: have they an impact on prognosis? Acta Otolaryngol 2001; 121:756-8. [PMID: 11678176 DOI: 10.1080/00016480152583719] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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17
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Mineta H, Miura K, Takebayashi S, Araki K, Ueda Y, Harada H, Misawa K. Immunohistochemical analysis of small cell carcinoma of the head and neck: a report of four patients and a review of sixteen patients in the literature with ectopic hormone production. Ann Otol Rhinol Laryngol 2001; 110:76-82. [PMID: 11201814 DOI: 10.1177/000348940111000114] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Small cell carcinoma (SCC) occurs mostly in the lung, and in some patients is accompanied by production of ectopic hormones. Small cell carcinoma of the head and neck is very rare. We report 4 patients with SCC of the head and neck (larynx, tonsil, maxillary sinus, and parotid gland). The patient with SCC of the maxillary sinus demonstrated a high level of plasma serotonin and overexpression of parathyroid hormone; however, he did not show any related symptoms. The patient with SCC of the tonsil showed the syndrome of inappropriate secretion of antidiuretic hormone associated with antidiuretic hormone hyperproduction at the terminal stage. In the literature, 16 patients with SCC of the head and neck with ectopic hormone production have been reported. Antidiuretic hormone and adrenocorticotropic hormone were the hormones that caused clinical symptoms (paraneoplastic syndromes). We believe that the evaluation of hormonal syndromes is valuable for diagnosis and treatment.
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Affiliation(s)
- H Mineta
- Department of Otolaryngology, Hamamatsu University School of Medicine, Japan
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18
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Ferlito A, Rinaldo A. Paraneoplastic syndromes in patients with laryngeal and hypopharyngeal cancers. Ann Otol Rhinol Laryngol 2000; 109:109-17. [PMID: 10651424 DOI: 10.1177/000348940010900121] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Paraneoplastic syndromes are systemic, nonmetastatic manifestations associated with a variety of malignant neoplasms and occurring in a minority of cancer patients. Paraneoplastic syndromes in association with cancers of the larynx and hypopharynx are considered rare. The world literature is reviewed, dividing paraneoplastic syndromes into 4 main groups, ie, cutaneous (acanthosis nigricans, Bazex's syndrome, Bowen's disease, bullous pemphigoid, dermatomyositis, pruritus, Sweet's syndrome, yellow nail syndrome, and tylosis), endocrine (carcinoid syndrome, adrenocorticotropic hormone syndrome, Schwartz-Bartter syndrome, hypercalcemia), hematologic (Trousseau's syndrome), and neurologic (cerebellar degeneration, Eaton-Lambert myasthenic syndrome). A paraneoplastic syndrome may precede the clinical manifestations of a persistent or recurrent tumor or of asymptomatic metastases, and its onset may even, in a minority of cases, be the presenting sign of a malignancy. Otolaryngologists and head and neck surgeons should have a knowledge of the paraneoplastic syndromes in order to facilitate their detection of malignancies or recurrences.
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Affiliation(s)
- A Ferlito
- Department of Otolaryngology-Head and Neck Surgery, University of Udine, Italy
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Ferlito A, Barnes L, Rinaldo A, Gnepp DR, Milroy CM. A review of neuroendocrine neoplasms of the larynx: update on diagnosis and treatment. J Laryngol Otol 1998; 112:827-34. [PMID: 9876371 DOI: 10.1017/s0022215100141830] [Citation(s) in RCA: 106] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Neuroendocrine neoplasms of the larynx have been divided into those of epithelial or neural origin. The latter consist of paragangliomas while the epithelial origin group can be divided into the typical and atypical carcinoids and small cell neuroendocrine carcinomata, the latter consisting of the oat cell type, the intermediate cell type and the combined cell type. There are now over 500 cases of neuroendocrine neoplasms of the larynx in the literature. The diagnosis is primarily based on light microscopy, and, in some instances, it may be supported by special histochemical studies. It should be confirmed by immunocytochemical and/or ultrastructural investigation. The different biological behaviour of neuroendocrine neoplasms of the larynx makes a specific diagnosis of paramount importance, since treatment depends on diagnostic accuracy. Typical carcinoid is an extremely rare lesion. It is treated preferably by conservative surgery; elective neck dissection is not necessary because of the lack of lymph node metastases at diagnosis. Chemotherapy and/or radiotherapy have not been effective in the limited number of patients treated thus far. Prognosis is excellent with cure following surgery. Atypical carcinoid is the most frequent non-squamous carcinoma of the larynx. The mainstay of treatment is surgery. Elective neck dissection should be performed because of the high likelihood of cervical lymph node metastases. Primary radiation therapy with adjuvant chemotherapy is not indicated. The survival rate is 48 per cent at five years and 30 per cent at 10 years. Although the larynx is one of its most common extrapulmonary sites, small cell neuroendocrine carcinoma is still a rare tumour. Surgical results for this tumour have been disappointing and is reserved for cases of local relapse with no evidence of metastasis. Chemotherapy and radiotherapy currently appear to offer the least disabling and most effective forms of therapy. The two- and five-year survival rates are 16 per cent and five per cent, respectively. Paraneoplastic syndromes have occasionally been reported in association with carcinoid tumours (typical and atypical) and small cell neuroendocrine carcinoma. There have been also rare reports of an elevated neuropeptide serum level. Paraganglioma is the only laryngeal neuroendocrine neoplasm with a female preponderance (3:1). Confusion with atypical carcinoid has led to incorrect diagnosis and inappropriate classification schemes, erroneously suggesting that laryngeal paraganglioma has the potential for aggressive behaviour. Conservative surgery represents the treatment of choice; elective neck dissection is not necessary, and the prognosis is excellent.
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Affiliation(s)
- A Ferlito
- Department of Otolaryngology-Head and Neck Surgery, University of Udine, Italy
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20
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Ferlito A, Rinaldo A, Devaney KO. Syndrome of inappropriate antidiuretic hormone secretion associated with head neck cancers: review of the literature. Ann Otol Rhinol Laryngol 1997; 106:878-83. [PMID: 9342988 DOI: 10.1177/000348949710601014] [Citation(s) in RCA: 68] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
In a minority of patients with malignant tumors, signs and symptoms develop that cannot be explained on the basis of the mass effect produced by the primary tumor or its metastases, or production of a hormone normally associated with the tissue type that has given rise to the malignant tumor; these peculiar symptom complexes are known as paraneoplastic syndromes, and may be divided into endocrinologic, dermatologic, hematologic, neurologic, and osteoarticular manifestations. In the head and neck region in particular, the syndrome of inappropriate antidiuretic hormone production (SIADH, or Schwartz-Bartter syndrome) is a well-recognized form of paraneoplastic syndrome that may accompany head and neck malignancies. Most of such tumors are squamous carcinomas, with lesser numbers of olfactory neuroblastomas, small cell neuroendocrine carcinomas, adenoid cystic carcinomas, and undifferentiated carcinomas; sarcoma was reported in only a single instance. The lesions associated with the development of SIADH have most often been located in the oral cavity, and less often in the larynx, nasopharynx, hypopharynx, nasal cavity, maxillary sinus, parapharyngeal space, salivary glands, and oropharynx. Key features of SIADH include serum hypo-osmolality; an unexpectedly high urinary specific gravity; an absence of edema or dehydration; normal adrenal, thyroid, and renal function; hyponatremia; and an elevation of plasma vasopressin.
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Affiliation(s)
- A Ferlito
- Department of Otolaryngology, University of Padua, Italy
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