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Query: UMLS:C0027121 (myositis)
 4,538 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Nodular fasciitis (NF) shows a cellular proliferation which leads to widening of the fascia. Frequently unilateral or more often bilateral disruption of the fascia, with an infiltrative pattern is present. Subcutaneous fascia and surrounding fat are involved. Superficially the cellular proliferation may extend into dermal connective tissue. Deeper muscular tissue may be involved, with transitional forms or purely intramuscular changes, compatible with proliferative myositis. Proliferative myositis is considered to be a deep-seated variant of NF with muscular involvement. Intramuscular myxoma may be thought of as an intramuscular and mucoid variant of NF. A bilateral infiltrative pattern was most frequently found at all levels; in cases with muscular involvement it was always present.
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PMID:Extent and level of fascial involvement in 100 cases with nodular fasciitis. 15 36

Nodular fasciitis, proliferative fasciitis, and proliferative myositis are tumorous proliferative soft tissue changes which on histological examination are quite often erroneously diagnosed as malignant neoplasms. Reported are cytological and histological findings recorded from nodular fasciitis in a man aged 34 years. The cytomorphology of nodular fasciitis is sufficiently characteristic, so that the lesion can be differentiated with certainty from malignant processes, since the cells have no features of malignancy, and the admixture of granulocytes and histiocytes in smears suggests a proliferative inflammatory process.
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PMID:Cytological findings in nodular fasciitis. 320 36

Nodular fasciitis (NF), proliferative fasciitis (PF), and proliferative myositis (PM) are pseudosarcomatous lesions that typically resolve spontaneously. We previously reported the feasibility of diagnosing this family of lesions by fine-needle aspiration cytology (FNAC) based on 17 cases. The present study included 52 new cases (NF, 46; PF, 3; PM, 3) diagnosed by FNAC at Kiang Wu Hospital, Macau, 2001 to 2007, to validate the diagnostic features. All lesions appeared as recent-onset, small, superficially located, rapidly growing nodules. In 88% of cases (46/52: NF, 41; PF, 2; PM, 3), spontaneous resolution occurred in 1 to 16 weeks (median, 2 weeks) after FNAC diagnosis. FNAC smears were characterized by a hypercellular and polymorphic pattern of lesional cells and distinctive ganglion cell-like cells in most cases. Most cases of NF (36/46 [78%]) showed "typical" cytologic features. A minority of NF cases showed granuloma-like or myxoid features. FNAC is an effective diagnostic tool for NF, PF, and PM; a correct cytologic diagnosis spares patients an operative procedure. Excisional biopsy can be reserved for cases showing atypical clinical courses or in which FNAC shows low cellularity with absence of ganglion cell-like cells.
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PMID:Pseudosarcomatous fasciitis and myositis: diagnosis by fine-needle aspiration cytology. 1992 76