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Zhuang TZ, Bergstrom C, El-Rayes BF, Shaib WL. A Case Series of Choroidal and Orbital Neuroendocrine Tumors: Metastasis: Two Patients Treated With Peptide Radionuclide Therapy. Pancreas 2024; 53:e445-e449. [PMID: 38530952 DOI: 10.1097/mpa.0000000000002316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
ABSTRACT Neuroendocrine tumors (NETs) are rare cancers with heterogeneous histologies, response to treatments, and prognoses. Majority of these cancers originate in the gastrointestinal tract and metastasize to the liver. We report the cases of 5 patients with low-grade NET disease with rare metastases to the choroids. Two of the patients were treated with peptide receptor radionuclide therapy (lutetium 177 [ 177 Lu]). This is the first report confirming peptide radionuclide therapy safety in patients with low-grade NET with ocular metastases.
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Affiliation(s)
- Tony Zibo Zhuang
- From the Department of Medicine, Emory University School of Medicine, Atlanta, GA
| | | | - Bassel F El-Rayes
- Department of Hematology and Medical Oncology, O'Neal Comprehensive Cancer Center, University of Alabama Birmingham, Birmingham, AL
| | - Walid L Shaib
- Hematology and Oncology, Northwest Georgia Oncology, Marietta, GA
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Rana K, Juniat V, Patel S, Selva D. Extraocular muscle enlargement. Graefes Arch Clin Exp Ophthalmol 2022; 260:3419-3435. [PMID: 35713708 PMCID: PMC9581877 DOI: 10.1007/s00417-022-05727-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 03/28/2022] [Accepted: 04/02/2022] [Indexed: 11/30/2022] Open
Abstract
Extraocular muscle enlargement can occur secondary to a range of orbital and systemic diseases. Although the most common cause of extraocular muscle enlargement is thyroid eye disease, a range of other inflammatory, infective, neoplastic, and vascular conditions can alter the size and shape of the extraocular muscles. Imaging with computed tomography and magnetic resonance imaging plays an essential role in the workup of these conditions. This article provides an image-rich review of the wide range of pathology that can cause enlargement of the extraocular muscles.
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Affiliation(s)
- Khizar Rana
- Department of Ophthalmology & Visual Sciences, University of Adelaide, North Terrace, Adelaide, SA, 5000, Australia. .,South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Port Road, Adelaide, SA, 5000, Australia.
| | - Valerie Juniat
- Department of Ophthalmology & Visual Sciences, University of Adelaide, North Terrace, Adelaide, SA, 5000, Australia.,South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Port Road, Adelaide, SA, 5000, Australia
| | - Sandy Patel
- Department of Medical Imaging, Royal Adelaide Hospital, Port Road, Adelaide, SA, 5000, Australia
| | - Dinesh Selva
- Department of Ophthalmology & Visual Sciences, University of Adelaide, North Terrace, Adelaide, SA, 5000, Australia.,South Australian Institute of Ophthalmology, Royal Adelaide Hospital, Port Road, Adelaide, SA, 5000, Australia
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Tayon KG, Kaila V, Sobti D, Vrcek I. Metastatic neuroendocrine carcinoma presenting with left lateral rectus enlargement and orbital cellulitis. Proc (Bayl Univ Med Cent) 2021; 34:620-622. [PMID: 34456492 DOI: 10.1080/08998280.2021.1930633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
Neuroendocrine tumors (NETs) of the orbit are a rare but increasingly recognized clinical phenomenon. The vast majority of orbital NETs are metastatic, and most metastasize from the gastrointestinal system to the extraocular muscles. While orbital metastasis typically occurs in the setting of a known primary neoplasm, some cases represent the initial manifestation of disease and can precede detection of the primary tumor by many months. We report a 58-year-old woman who presented with diplopia, unilateral orbital pain, erythema, and chemosis as the primary presentation of a metastatic small intestine NET. This case serves as a reminder that identification of orbital NETs should prompt investigation for primary gastrointestinal or pulmonary NETs. Goals of surgery include obtaining a tissue sample, debulking the lesion, and preserving visual function.
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Ryan TG, Juniat V, Stewart C, Malhotra R, Hardy TG, McNab AA, Davis G, Selva D. Clinico-radiological findings of neuroendocrine tumour metastases to the orbit. Orbit 2021; 41:44-52. [PMID: 33729098 DOI: 10.1080/01676830.2021.1895845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Purpose: We present the clinico-radiological findings of neuroendocrine tumour metastases to the orbit.Methods: This was a multicentre, retrospective study of patients with neuroendocrine tumour metastases to the orbit. Data was collected from medical records across five different sites within Australia and the United Kingdom.Results: Nine patients (eleven lesions) were identified. The most common presenting complaint was diplopia (5/9, 56%). Disease occurred bilaterally in two patients. Seven patients (78%) had extraocular muscle involvement. The lateral recti (4/9, 44%) and superior recti (2/9, 22%) were the most commonly affected. Ocular presentation preceded primary tumour diagnosis in three patients (33%). On orbital imaging, metastases were most commonly reported as well circumscribed, ovoid or round, heterogeneous, contrast-enhancing masses. Features of intralesional haemorrhage and bony invasion are uncommonly reported.Conclusions: Neuroendocrine tumour metastasis to the orbit is uncommon. Metastases have a propensity for the extraocular muscles, commonly presenting as heterogeneous, well circumscribed, contrast-enhancing lesions on neuroimaging. New ocular symptoms, a history of neuroendocrine tumours, and these radiological findings, should lead to high clinical suspicion of metastatic disease. Atypical findings warrant biopsy to exclude other causes of orbital lesions.
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Affiliation(s)
- T G Ryan
- Department of Ophthalmology, The Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - V Juniat
- Department of Ophthalmology, The Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - C Stewart
- Department of Ophthalmology, Gold Coast University Hospital, Gold Coast, Australia
| | - R Malhotra
- Oculoplastics Unit, East Grinstead Hospital, East Sussex, UK
| | - T G Hardy
- Orbital Plastics and Lacrimal Unit, Royal Victorian Eye and Ear Hospital, East Melbourne, Australia.,Department of Surgery, Royal Melbourne Hospital, University of Melbourne, Parkville, Australia
| | - A A McNab
- Orbital Plastics and Lacrimal Unit, Royal Victorian Eye and Ear Hospital, East Melbourne, Australia.,Centre for Eye Research Australia Ltd, University of Melbourne, East Melbourne, Australia
| | - G Davis
- Department of Ophthalmology, The Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - D Selva
- Department of Ophthalmology, The Royal Adelaide Hospital, Adelaide, South Australia, Australia
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