1983
DOI: 10.1002/1097-0142(19830901)52:5<904::aid-cncr2820520527>3.0.co;2-h
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Proliferative myositis of the masseter muscle. A case report and a review of the literature

Abstract: A case of proliferative myositis of the masseter muscle in a 62‐year‐old woman is presented and pertinent literature is reviewed. This benign pseudosarcomatous proliferative lesion has not been previously reported in any of the muscles of mastication. Clinically the patient presented with pain and difficulty in opening of the mouth. On initial examination, a malignant salivary gland tumor was suspected. The proliferative myositis exhibits a disturbing microscopic appearance characterized by the presence of num… Show more

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Cited by 24 publications
(16 citation statements)
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“…[1] Cases presenting with severe pain and other constitutional symptoms, especially those following injury, have been reported. [2] The usual clinical presentation is of a painless, ill-defined, rapidly growing, firm, solitary lump in or adjacent to the muscles of the shoulder, thorax, thigh, or neck. [3] The lesion is usually 3 to 6 cm at presentation and is typically firm and deep-seated.…”
Section: Discussionmentioning
confidence: 99%
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“…[1] Cases presenting with severe pain and other constitutional symptoms, especially those following injury, have been reported. [2] The usual clinical presentation is of a painless, ill-defined, rapidly growing, firm, solitary lump in or adjacent to the muscles of the shoulder, thorax, thigh, or neck. [3] The lesion is usually 3 to 6 cm at presentation and is typically firm and deep-seated.…”
Section: Discussionmentioning
confidence: 99%
“…Adults are usually affected with a peak incidence between 40 and 70 years of age. [2] Proliferative myositis may also involve the soft tissues of the head and neck. In the series of 33 cases reported by Enzinger and Dulcey, [1] 18 involved the shoulder and arm whereas only four cases arose from the anterior chest wall.…”
Section: Discussionmentioning
confidence: 99%
“…• une prolifération de fibroblastes (cellules fusiformes) dans un épimysium, endomysium et périmysium des fascicules [4] ; • l'absence d'altération des fibres musculaires [4,8,11] ;…”
Section: Discussionunclassified
“…Des études de microscopie électronique et d'immunohistochimie [7] montrent la présence de vimentine et d'actine musculaire lisse dans leur cytoplasme suggérant un rôle de cellules intermédiaires entre les fibroblastes et les cellules musculaires pour les myofibroblastes [3]. D'autres aspects histologiques sont parfois observés, comme l'atrophie musculaire secondaire, des foyers de nécrose ou d'ossification [7,8].…”
Section: Discussionunclassified
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