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Abouelatta MM, Shalaby OES, Awara AM, Kikkawa DO, Eldesouky MA. Review article: Diagnosis and management of enlarged extraocular muscles. Taiwan J Ophthalmol 2024; 14:209-216. [PMID: 39027070 PMCID: PMC11254004 DOI: 10.4103/tjo.tjo-d-22-00085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Accepted: 08/10/2022] [Indexed: 07/20/2024] Open
Abstract
Extraocular muscle (EOM) enlargement may be due to a variety of causes. These causes can be classified in three ways: according to pathogenesis and histopathological features, according to the site, and according to the clinical features. Diagnosis of the cause is dependent upon history, clinical examination, and investigations. Imaging with computed tomography or magnetic resonance imaging and muscle biopsy is typically necessary to make the correct diagnosis. Treatment of the patient must be directed toward the specific cause. This review emphasizes important clinical and pathological guidelines for appropriate diagnosis and treatment of patients with EOM enlargement.
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Affiliation(s)
- Mahmoud Mostafa Abouelatta
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Egypt
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Shiley Eye Institute, University of California, San Diego, California, United States of America
| | - Osama El Saied Shalaby
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Amr Mahmoud Awara
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Don Osami Kikkawa
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Shiley Eye Institute, University of California, San Diego, California, United States of America
| | - Mohammed Ashraf Eldesouky
- Division of Oculofacial Plastic and Reconstructive Surgery, Department of Ophthalmology, Faculty of Medicine, Tanta University, Tanta, Egypt
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Yoshida-Hata N, Mimura M, Aikawa M, Kashima T. A case of bilateral amyloidosis localized to extraocular muscles mimicking thyroid eye disease. BMC Ophthalmol 2024; 24:42. [PMID: 38279160 PMCID: PMC10811829 DOI: 10.1186/s12886-024-03295-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/15/2024] [Indexed: 01/28/2024] Open
Abstract
BACKGROUND Amyloidosis is a rare condition characterized by the abnormal deposition of amyloid proteins in various tissues and organs. While systemic amyloidosis has been well-documented, amyloid deposition in extraocular muscles is an exceptionally rare occurrence, with only 35 reported cases. This case report sheds light on the importance of considering amyloidosis in the differential diagnosis of patients presenting with proptosis and diplopia, which are often associated with thyroid eye disease. CASE PRESENTATION A woman in her twenties sought medical attention due to a complaint of diplopia. Her ocular examination revealed almost normal findings except for exotropia and proptosis. Orbital magnetic resonance imaging displayed fusiform enlargement of nearly all eye muscles, a presentation typically observed in thyroid eye disease. However, despite corticosteroid therapy, her symptoms showed no improvement. Given the unusual lack of response to conventional treatment, and inhomogeneous enhancement of the muscle, an extraocular muscle biopsy was conducted. This biopsy yielded a unique finding-amyloid deposition within the muscle tissue. This discovery was particularly intriguing due to the extreme rarity of amyloidosis affecting extraocular muscles, with fewer than three dozen documented cases worldwide. CONCLUSION This unique case underscores the critical need for a comprehensive approach to diagnosing patients with proptosis and diplopia. While these symptoms are commonly attributed to thyroid eye disease, it is essential to consider alternative diagnoses such as amyloidosis, especially when standard treatments fail to yield results. The discovery of amyloid deposition in the extraocular muscles, although exceedingly rare, emphasizes the significance of a thorough differential diagnosis. In conclusion, this case report highlights the importance of vigilance in clinical practice, encouraging ophthalmologists to explore less common diagnostic possibilities when faced with challenging cases. Further research and clinical investigation are warranted to better understand the mechanisms and potential treatments for amyloidosis affecting the extraocular muscles.
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Affiliation(s)
| | - Masashi Mimura
- Oculofacial Clinic Osaka, 1-12-6, Umeda Kita-ku, Osaka-city, 530-0001, Osaka, Japan
| | - Miwa Aikawa
- Oculofacial Clinic Tokyo, 1-15-4 Ginza, Chuo-ku, 104-0061, Tokyo, Japan
| | - Tomoyuki Kashima
- Oculofacial Clinic Tokyo, 1-15-4 Ginza, Chuo-ku, 104-0061, Tokyo, Japan
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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: 12] [Impact Index Per Article: 6.0] [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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Abouelatta M, Shalaby OS, Awara A, Kikkawa D, Eldesouky M. Review article: Diagnosis and management of enlarged extraocular muscles. Taiwan J Ophthalmol 2022. [DOI: 10.4103/2211-5056.360560] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
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Clinical and Radiological Features of Intramuscular Orbital Amyloidosis: A Case Series and Literature Review. Ophthalmic Plast Reconstr Surg 2021; 38:234-241. [PMID: 34516528 DOI: 10.1097/iop.0000000000002061] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
PURPOSE Orbital amyloidosis of the extraocular muscles (EOMs) is a rare condition, and its clinicoradiological features are not well elucidated. This study describes the characteristic clinical signs, MRI features, and potential treatment options. METHODS Retrospective multicenter case series and literature review of EOM amyloidosis. RESULTS Five cases were identified for inclusion. Common clinical findings were diplopia, ophthalmoplegia, and proptosis. Systemic amyloidosis was more likely to present with multiple muscle involvement, but no particular pattern was observed with localized disease. On MRI, amyloid deposition was characterized as a heterogeneous intramuscular mass with T2 hypointensity and post contrast enhancement. Management is dependent on the extent of disease and functional impairment; options include surgical debulking and radiation therapy. CONCLUSION EOM amyloidosis is uncommon. The combination of clinical and radiologic findings described in this study should lead to its clinical suspicion.
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Nishikawa N, Kawaguchi Y, Konno A, Kitani Y, Takei H, Yanagi Y. Primary isolated amyloidosis in the extraocular muscle as a rare cause of ophthalmoplegia: A case report and literature review. Am J Ophthalmol Case Rep 2021; 22:101052. [PMID: 33732950 PMCID: PMC7937664 DOI: 10.1016/j.ajoc.2021.101052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/01/2020] [Accepted: 02/21/2021] [Indexed: 11/04/2022] Open
Abstract
Purpose To report a case of external ophthalmoplegia due to an uncommon form of amyloidosis exclusively affecting the lateral rectus muscle, and to discuss the clinical manifestation, diagnostic challenges, and management pitfalls of isolated amyloidosis in the extraocular muscle. Observations A 64-year-old woman presented with diplopia in her left gaze lasting for six months. She had orthophoria in the primary position and abduction limitation in the left eye. Routine laboratory examinations were unremarkable. Orbital magnetic resonance imaging showed fusiform enlargement of the left lateral rectus muscle, without tendon involvement. Extraocular muscle biopsy was recommended to make a diagnosis, which revealed amyloid deposition in the lateral rectus muscle. A systemic work-up showed no evidence of systemic amyloidosis. Therefore, a diagnosis of primary isolated amyloidosis was made. Orthophoria in the primary position and diplopia in the lateral gaze persisted at the six-month follow-up. Conclusions and importance Atypical extraocular muscle enlargement should alert clinicians to the need for tissue biopsy to identify uncommon etiologies, such as amyloidosis. There are no pathognomonic or radiological features to distinguish localized from systemic amyloidosis. Therefore, if amyloidosis of the extraocular muscles is diagnosed, a systemic work-up is needed to rule out systemic amyloidosis, which is potentially life-threatening.
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Affiliation(s)
- Noriko Nishikawa
- Department of Ophthalmology, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yuriya Kawaguchi
- Department of Ophthalmology, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Ami Konno
- Department of Ophthalmology, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yuya Kitani
- Division of Cardiology, Nephrology, Pulmonology and Neurology, Department of Internal Medicine, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Hidehiro Takei
- Department of Diagnostic Pathology, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan
| | - Yasuo Yanagi
- Department of Ophthalmology, Asahikawa Medical University, 2-1-1 Midorigaoka, Higashi, Asahikawa, Hokkaido, 078-8510, Japan.,Singapore National Eye Centre, Singapore Eye Research Institute, 11 Third Hospital Ave, 168751, Singapore
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Li Y, Wang Y, Zhang W. A case of isolated amyloidosis in extraocular muscle mimicking thyroid eye disease. J AAPOS 2020; 24:122-124. [PMID: 32087324 DOI: 10.1016/j.jaapos.2019.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2019] [Revised: 12/12/2019] [Accepted: 12/28/2019] [Indexed: 11/17/2022]
Abstract
A 24-year-old woman presented with periorbital pain, progressive diplopia, and restricted eye movement. Routine blood testing was normal except for increased levels of thyroid peroxidase autoantibody (TPOAb) and thyroglobulin autoantibody (TGAb). Orbital computed tomography revealed fusiform thickening of the rectus muscles belly, with tendon sparing, as in thyroid eye disease. Rectus muscle biopsy revealed isolated amyloidosis. Further workup showed no evidence of systemic amyloidosis.
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Affiliation(s)
- YuePing Li
- Pediatric Ophthalmology and Strabismus Department, Tianjin Eye Hospital; Clinical College of Ophthalmology of Tianjin Medical University; Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin, China
| | - Yuchuan Wang
- Pediatric Ophthalmology and Strabismus Department, Tianjin Eye Hospital; Clinical College of Ophthalmology of Tianjin Medical University; Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin, China
| | - Wei Zhang
- Pediatric Ophthalmology and Strabismus Department, Tianjin Eye Hospital; Clinical College of Ophthalmology of Tianjin Medical University; Tianjin Key Laboratory of Ophthalmology and Vision Science, Tianjin, China.
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Dodd MMU, Wolkow N, Cunnane ME, Ma L, Dryja TP, Hunter D. Isolated orbital amyloidosis causing internal and external ophthalmoplegia. J AAPOS 2020; 24:48-51.e1. [PMID: 31830573 DOI: 10.1016/j.jaapos.2019.11.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 10/14/2019] [Accepted: 11/03/2019] [Indexed: 11/18/2022]
Abstract
Amyloid is a protein precursor known to deposit in ocular tissue. Although its presentation is protean, it is rarely seen in the orbit. We report the case of an 85-year-old woman with primary orbital amyloidosis causing internal and external ophthalmoplegia. Strabismus surgery with muscle biopsy alleviated her symptoms and assisted with solving the diagnostic challenge.
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Affiliation(s)
- Mary-Magdalene Ugo Dodd
- Section of Ophthalmology, Department of Surgery, Cummings School of Medicine, University of Calgary, Calgary, Alberta.
| | - Natalie Wolkow
- Division of Ophthalmic Plastic Surgery, Department of Ophthalmology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts; David G. Cogan Laboratory of Ophthalmic Pathology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Mary Elizabeth Cunnane
- Department of Radiology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Lina Ma
- David G. Cogan Laboratory of Ophthalmic Pathology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - Thaddeus P Dryja
- David G. Cogan Laboratory of Ophthalmic Pathology, Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts
| | - David Hunter
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts
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Han SH, Kim YD, Woo KI. Primary Localized Amyloidosis in Extraocular Muscles. JOURNAL OF THE KOREAN OPHTHALMOLOGICAL SOCIETY 2019. [DOI: 10.3341/jkos.2019.60.12.1301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Sun Hyup Han
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Yoon-Duck Kim
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
| | - Kyung In Woo
- Department of Ophthalmology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea
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Thyroid-Associated Orbitopathy and Biomarkers: Where We Are and What We Can Hope for the Future. DISEASE MARKERS 2018; 2018:7010196. [PMID: 29736194 PMCID: PMC5875031 DOI: 10.1155/2018/7010196] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Revised: 12/21/2017] [Accepted: 01/30/2018] [Indexed: 01/10/2023]
Abstract
Background Thyroid-associated orbitopathy (TAO) is the most common autoimmune disease of the orbit. It occurs more often in patients presenting with hyperthyroidism, characteristic of Graves' disease, but may be associated with hypothyroidism or euthyroidism. The diagnosis of TAO is based on clinical orbital features, radiological criteria, and the potential association with thyroid disease. To date, there is no specific marker of the orbital disease, making the early diagnosis difficult, especially if the orbital involvement precedes the thyroid dysfunction. Summary The goal of this review is to present the disease and combine the available data in the literature concerning investigation of TAO biomarkers. Conclusions Despite the progress done in the understanding of TAO disease, some important pieces are still missing. Typically, for the future, major efforts have to be done in the discovery of new biomarkers, validation of the suspected candidates on multicenter cohorts with standardized methodologies, and establishment of their clinical performances on the specific clinical application fields in order to improve not only the management of the TAO patients but also the therapeutic options and follow-up.
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