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Parosteal fasciitis of the clavicle
Author(s) -
Yamamoto Tetsuji,
Marui Takashi,
Mizuno Kosaku,
Obayashi Chiho,
Minami Rieko,
Inaba Mayumi,
Hayashi Yoshitake
Publication year - 2000
Publication title -
pathology international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.73
H-Index - 74
eISSN - 1440-1827
pISSN - 1320-5463
DOI - 10.1046/j.1440-1827.2000.01148.x
Subject(s) - periosteum , desmin , nodular fasciitis , clavicle , pathology , vimentin , lesion , medicine , anatomy , myofibroblast , fasciitis , immunohistochemistry , magnetic resonance imaging , acromion , radiology , fibrosis , rotator cuff
A rare case of parosteal fasciitis arising from the periosteum of the left clavicle in a 27‐year‐old woman is reported. Magnetic resonance imaging demonstrated the lesion surrounding the periosteum of the clavicle. The lesion was iso‐intense with muscle on T 1 ‐weighted images and hyperintense on T 2 ‐weighted images. At surgery, the lesion was discovered to be densely adherent with the periosteum, and excised along with the periosteum. Histopathological examination revealed the proliferation of myofibroblasts in a vague storiform or short fascicular pattern. A large amount of extravasated erythrocytes, and a few lymphocytes were present in the matrix. There were some foci of abundant myxoid materials. Immunohistochemical study showed the cells to be positive for vimentin, α‐smooth muscle actin and HHF35, but negative for desmin. There was no local recurrence at a 6 months postoperative follow up.