Teixeira, V.C. ; Dihné, M. Isolated unilateral temporal muscle hypertrophy: A rare cause of hemicranial headache. Unilateral hypertrophy of the masseter muscle is a very rare pathological entity in children. All authors have equal contributions to the work. The authors declare that they have no conflict of interest. ; Kim, S.T. ; Masouri, S.; Bernstein, S.; Antoniou, C. Prospective evaluation of incobotulinumtoxin A in the management of the masseter using two different injection techniques. Ranasinghe, J.C.; Wickramasinghe, C.; Rodrigo, G. Isolated unilateral temporalis muscle hypertrophy in a child: A case report with literature review. Shi, X.; Pan, H.; Ge, H.; Li, L.; Xu, Y.; Wang, C.; Xie, H.; Liu, X.; Zhou, W.; Wang, S. Subsequent cooling-circulation after radiofrequency and microwave ablation avoids secondary indirect damage induced by residual thermal energy. Medical imaging may help set the diagnosis, but pathological tests provide important details and help find the etiological cause. The histopathology of masseteric hypertrophy. Diagnostics 2022, 12, 505. Periosteal appositions, revealed by medical imaging, may occur on the lower branch of the mandible on the affected side due to excessive bone traction, periosteal irritation, and new bone deposition. ; de Sousa, S.M. Using the Medical Subject Headings MeSH term “masseter muscle hypertrophy”, “idiopathic”, “unilateral”, and “children”, we performed a PubMed literature search for randomized controlled trials (RCTs), systematic reviews, observational studies, series of cases, and case reports from the earliest possible date to January 2022. Excision of the internal layer of the masseter muscle and reduction of the thickened bone in the region of the … Masseter muscle hypertrophy. https://www.mdpi.com/openaccess. and S.T.R. The recommendations were followed but without any benefit and the adolescent returned about two years later with the same facial asymmetry and asked for surgery to fix it. Also a hanging corner of the mouth (marionette lines, today also called Merkel folds), gingival smile (Gummy smile), a so-called . https://doi.org/10.3390/diagnostics12020505, Subscribe to receive issue release notifications and newsletters from MDPI journals, You can make submissions to other journals. interesting to readers, or important in the respective research area. For ; writing—review and editing, E.Ț., V.Ț. The histological examination of the surgical specimen in our case revealed striated skeletal muscle with well-preserved architecture, but no evidence of interstitial inflammation. Feature papers represent the most advanced research with significant potential for high impact in the field. ; Benato, L.S. Management of the idiopathic masseter hypertrophy is based on psychological counseling, the use of mouth guards, muscle relaxant and anxiolytic drugs, analgesics, physical therapy, dental restorations, and occlusal adjustments to correct premature contacts [, However, conservative therapy is often not effective and invasive treatment is necessary to improve dental occlusion, especially in unilateral cases in adolescents, as was our case, when surgery was demanded for aesthetic reasons. ; writing—original draft preparation, E.Ț. Im Zeitraum Juni 2000 bis August 2004 wurden an unserer Klinik sieben Patienten mit einer unilateralen und ein Patient mit einer bilateralen Masseterhypertrophie mit Injektionen von Botulinumtoxin A behandelt. Guruprasad, R.; Rishi, S.; Nair, P.P. Since there is no standard protocol in the literature for the treatment of masseter muscle hypertrophy, our patient was treated conservatively for two years with no benefit. Ayhan, M.; İşler Sabri, C.; Kasapoglu, C. Combination of Medical and Surgical Treatments for Masseter Hypertrophy. Masseteric muscle hypertrophy and its intraoral surgical correction. Pflastersteinkinn, Halsstränge und Zahnknirschen (Bruxismus, Masseterhypertrophie) lassen sich mit Botulinumtoxin erfolgreich behandeln. J.E.Zöller Chemodenervation with botulinumtoxin in masseteric hypertrophy.Results of a treatment series Masseter hypertrophy is a rare condition. The masseter muscle helps us chew and eat our food. most exciting work published in the various research areas of the journal. As there are few pathological studies to elucidate this condition, we report a rare case of unilateral masseter muscle hypertrophy in a 16-year-old female patient with gradual onset of a painless swelling in the posterior left cheek which caused facial asymmetry with repercussions on the patient’s self-image. Au terme du bilan complémentaire, le diagnostic d'hypertrophie bénigne asymétrique des muscles masticateurs favorisée par le bruxisme a été retenue. Nikolis, A.; Enright, K.M. ; Munteanu, V.; Țarcă, V.; Budacu, C.C. However, approximately 20% of normal people have this finding and it cannot be considered as a diagnostic aid [, Although the etiology of this condition is still unclear, certain factors, such as temporomandibular joint disorders, stomatognathic system dysfunction, bruxism, mental disorders, or excessive use of chewing gum are thought to be involved; unilateral occurrence can be seen when patients chew or clench primarily on one side [, When the condition is bilateral or unilateral, its differential diagnosis will include diseases of the parotid glands (inflammation, tumors, infections, autoimmune diseases), dental or osteoarticular conditions, muscle tumors, lipomas, myopathy, vascular tumors, or genian hemangioma [, There is not yet a standard protocol in the literature about the treatment of masseter hypertrophy. Rispoli, D. Benign masseter muscle hypertrophy. All these conditions were ruled out with the help of clinical multidisciplinary investigations (psychological, neurosurgical, dentoalveolar and maxillofacial surgery, and ophthalmological consultation), biological tests, and medical imaging scanning (the findings were within the reference range). ; formal analysis, V.Ț. The unusual case of a teenage girl with unilateral masseter muscle hypertrophy, without other associated conditions, who, for aesthetic and psychological reasons, demanded surgery after two years of conservative treatment without benefits, is reported here. Masseteric hypertrophy is a relatively uncommon condition which can occur unilaterally or bilaterally, and the etiology is unclear in the majority of patients. Thirty-eight of all the articles found were quoted. Hazar Bodrumlu, E.; Çakmak Özlü, F.; Yılmaz, H.; Demiriz, L. Investigating the effect of bruxism on maxillary arch length and width in children using three-dimensional digital model analysis. 2022. those of the individual author(s) and contributor(s) and not of MDPI and/or the editor(s). When searching PubMed for the term “unilateral masseter muscle hypertrophy”, 49 articles were found. You seem to have javascript disabled. Several treatment options reported for masseter hypertrophy are present, which range from simple pharmacotherapy to more invasive . ; Kluppel, L.E. MDPI and/or Bilateral masseter and internal pterygoid muscle hypertrophy: A diagnostic challenge. In the presented case, none of the known etiological factors were identified; therefore, the condition was classified as idiopathic. Editors select a small number of articles recently published in the journal that they believe will be particularly Articles, and their reference lists, published in English were analyzed for other relevant articles. Martensson, G. Hypertrophy of the masseter muscle. Most patients complain of facial asymmetry; however, symptoms such as trismus, protrusion, and bruxism . Masseter muscle hypertrophy (MMH) is an abnormal enlargement of the masseter muscle, either unilaterally or bilaterally characterized by an increase in the volume of the muscle mass. Masseter muscle hypertrophy (MMH) is most probably a congenital, genetically determined anomaly. Surgery may pose some risks such as facial or mandibular nerve injuries, masseter artery injury and bleeding, bone lesions, infections, postoperative trismus, mouth opening limitation, and sequelae from general anesthesia [. for a favorable cosmetic appearance and to reduce the possibility of injuring branches of the facial nerve; the antero-external portion of the hypertrophied masseter muscle was highlighted and resection of excessive vertical fibers from the inner third was done; hemostasis was performed and the procedure ended with an intradermal suture and steri-strip dressing. It clinically presents as an enlargement of one or both masseter muscles. ; Jin, K.-S.; Lee, H.; Han, Y.-S. Authors to whom correspondence should be addressed. Kamble, V.; Mitra, K. A Rare Association of Bilateral and Unilateral Masseter Hypertrophy with Hypertrophy of Pterygoids. All authors have read and agreed to the published version of the manuscript. The diagnosis of unilateral masseter muscle hypertrophy was suggested by clinical examination, ultrasound scanning, and nuclear magnetic resonance, and was confirmed by histologic examination two years later when the patient returned for the surgical correction. When treatment is planned, the patient’s expectations and physical findings should be evaluated thoroughly. Multiple requests from the same IP address are counted as one view. Ţarcă, E.; Cojocaru, E.; Roşu, S.T. Excision of the internal layer of the masseter muscle and reduction of the thickened bone in the region of the mandibular angle, via an intraoral . Download scientific diagram | Hypertrophy of the masseter muscles often results in a characteristic square-jaw appearance. Idiopathic hypertrophy of the masseter muscle is a rare disorder of unknown cause. the editor(s) disclaim responsibility for any injury to people or property resulting from any ideas, The masseter muscle is the bulkiest and strongest muscle of the face and maximum force is applied to it during mastication. 1 It is a rare, benign, generally asymptomatic condition with no gender predilection and with a high incidence of occurrence in second and third decades of life. Benign Masseteric Hypertrophy is a relatively uncommon condition that can occur unilaterally or bilaterally. Kim, J.-H.; Lim, S.-U. The pathological findings report showed fragments of skeletal muscle with hypertrophic fibers associated with normal-sized muscle fibers in both longitudinal and transverse sections. Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. ; investigation, E.C., C.C.B. No local inflammatory phenomena were detected and the consistency of the area was normal, homogeneous, painless, and with no signs of abnormalities due to dental occlusion. The initial differential diagnosis included a condition of the salivary glands, a lymphatic or arteriovenous malformation, a muscle tumor, or lipoma. In. ; Estefano, A. Tratamento cirúrgico da hipertrofia benigna do masseter por abordagem intra-oral. ; Jaffery, F.; Koutzaki, S.; Zarella, M.; Slater, R. Painful unilateral temporalis muscle enlargement: Reactive masticatory muscle hypertrophy. ; Mejia, J.E.S. Management of unilateral masseter hypertrophy and hypertrophic scar—A case report. Idiopathic hypertrophy of the masseter muscle is a rare disorder of unknown cause. A Feature Zachariades, N.; Raiiis, G.; Papadcmetriou, J.; Konsolald, E.; Markaki, S.; Mezitis, M. Phleboliths A report of three unusual cases. and C.C.B. Sannomiya, M. Masseter muscle hypertrophy—Case report. Masseter muscle hypertrophy: A case report. Other conditions were ruled out in our case by biological tests and medical imaging scanning, but the definite diagnosis was set by anatomopathological means. https://doi.org/10.3390/diagnostics12020505, Ţarcă E, Cojocaru E, Luca AC, Trandafir LM, Roşu ST, Munteanu V, Țarcă V, Budacu CC, Costea CF. Enlargement of the temporal and masseter muscles, of both sides. Kef, K. Application of Botulinum Toxin in Patients with Secondary Otalgia Caused by Bruxism. Some authors associate it with the habit of chewing gum, temporo-mandibular joint disorder, congenital and functional hypertrophies, and emotional disorders (stress and nervousness). ; visualization, E.C. ; Rebellato, N.L.B. Trento, G.D.S. ; Butnariu, L.I. Its etiology is uncertain and it requires a high degree of suspicion, as it must be differentiated from other conditions of the masseter area. All articles published by MDPI are made immediately available worldwide under an open access license. Masseter muscle hypertrophy (MMH) is most probably a congenital, genetically determined anomaly. Unilateral masseter muscle hypertrophy: A case report. methods, instructions or products referred to in the content. ; Thomas, S. Masseter and medial pterygoid muscle hypertrophy. In unilateral cases, the definite diagnosis is even more difficult, which makes pathological tests mandatory. Most patients complain of the cosmetic change caused by facial asymmetry, also . Both the adolescent and her family were very satisfied with the clinical aspect on the 14th day, 1st year, and 3rd year follow-ups (, The specimens removed by incision biopsy were standardly processed for histopathological examination at the Pathology Laboratory. Unusual Case of Masseter Muscle Hypertrophy in Adolescence—Case Report and Literature Overview. Please let us know what you think of our products and services. Masticatory muscle hypertrophy is generally considered to be a functional hypertrophy and can affect all, several, or just one of the muscles of mastication; it can occur either bilaterally or unilaterally. Mary” Emergency Children’s Hospital, Iaşi, Romania, Approval number 1318, Approval date 14 January 2022. Searching for “unilateral masseter muscle hypertrophy” resulted in 2 articles. Surgery was then performed using an extraoral approach with intradermal sutures for a better cosmetic appearance. First described by Legg in 1880 as a concurrent . A study by Riefkohl et al. Some authors associate it with the habit of chewing gum, temporo-mandibular joint disorder, congenital and functional hypertrophies, and emotional disorders (stress and nervousness). Obwegeser, H.L. The case of a 16-year-old female patient who came to the specialized outpatient clinic of “St. We checked the full text of all these articles and extracted data on incidence, sex ratio, diagnosis, etiology, associated abnormalities, and treatment. Definite diagnosis and treatment of the hypertrophied muscle is the ideal solution. Masseter muscle hypertrophy and bony surplus. ; Kim, H.J. Rhee, S.C.; Lee, S.H. A rare case of unilateral masseter muscle hypertrophy in a pediatric patient is reported here. Unusual Case of Masseter Muscle Hypertrophy in Adolescence—Case Report and Literature Overview. Chronic bilateral benign hypertrophy of the masseter. Diagnostics. Antunes, J.J.; Almeida, S.A.; Monteiro, R.M.P.C. Differential Diagnosis Difficulties Related to Infantile Hemangioma—Case Report and Literature Review. Kebede, B.; Megersa, S. Idiopathic masseter muscle hypertrophy. Muscle hypertrophy means an increase in the size of individual muscle fibers. Humans have two masseter muscles, one on each side of our face. It is mostly idiopathic with no known cause. https://doi.org/10.3390/diagnostics12020505, Ţarcă, Elena, Elena Cojocaru, Alina Costina Luca, Laura Mihaela Trandafir, Solange Tamara Roşu, Valentin Munteanu, Viorel Țarcă, Cristian Constantin Budacu, and Claudia Florida Costea. In some cases prominent Exostoses at the angle of the . and V.Ț. future research directions and describes possible research applications. Wagner, A. Botulinum toxin type A in the management of masseter muscle hypertrophy. Attractive Composite Faces of Different Races. Lee, H.J. Both the patient and her parents were informed about the benign nature of the condition and the patient was discharged with the recommendation to use only the right side for chewing. Obstructive parotitis secondary to an acute masseteric bend. More specifically, the masseter muscle helps to elevate the lower jaw/mandible and to assist in protrusion/forward . Surgical resolution of bilateral hypertrophy of masseter muscle through intraoral approach. ; Bianchi, M.A. Paper should be a substantial original Article that involves several techniques or approaches, provides an outlook for
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