Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2006-4-20
pubmed:abstractText
The diagnosis of low-grade and pseudosarcomatous spindle cell lesions of skin and soft tissue can sometimes be problematic; in particular, distinction between fibroblastic, myofibroblastic, and smooth muscle proliferations can occasionally pose difficulties on routine histologic examination. We have applied a panel of immunohistochemical markers to a series of spindle cell lesions of skin and soft tissue to assess the utility of the differential expression of smooth muscle and myofibroblastic-associated markers. Twenty-eight cases of nodular fasciitis, 42 cases of fibromatosis, and 3 cases of myofibroblastic sarcoma were stained with antibodies against smooth muscle actin (SMA), smooth muscle myosin (SMMS), calponin, and high-molecular weight caldesmon (h-caldesmon). For comparison, 12 cases of cutaneous leiomyoma and 8 cases of leiomyosarcomas involving superficial soft tissues and fascia were studied with the same panel of antibodies. Thirty-eight of 42 cases of fibromatosis were positive for SMA, 42/42 cases were positive for calponin, 39/42 cases were negative for SMMS, and all cases were negative for h-caldesmon. All cases of nodular fasciitis were positive for SMA and calponin, and all were negative for h-caldesmon and SMMS. All cases of myofibroblastic sarcoma were positive for SMA and 2/3 cases for calponin, and were negative for SMMS and h-caldesmon. All cases of cutaneous leiomyoma and leiomyosarcoma were positive for all 4 markers tested. Our results demonstrate a remarkably consistent pattern of reactivity of muscle and myofibroblastic-associated markers in lesions predominantly composed of myofibroblastic spindle cells, characterized by positive staining for SMA and calponin and absence of reactivity for SMMS and h-caldesmon. Application of this panel of stains may be of aid in the differential diagnosis of low-grade myofibroblastic lesions such as nodular fasciitis and fibromatosis from smooth muscle tumors of skin and soft tissue. This panel may additionally be of assistance in the diagnosis of myofibroblastic sarcoma.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0193-1091
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
105-11
pubmed:meshHeading
pubmed-meshheading:16625070-Actins, pubmed-meshheading:16625070-Adult, pubmed-meshheading:16625070-Aged, pubmed-meshheading:16625070-Biological Markers, pubmed-meshheading:16625070-Calcium-Binding Proteins, pubmed-meshheading:16625070-Calmodulin-Binding Proteins, pubmed-meshheading:16625070-Fascia, pubmed-meshheading:16625070-Fasciitis, pubmed-meshheading:16625070-Female, pubmed-meshheading:16625070-Fibroblasts, pubmed-meshheading:16625070-Fibroma, pubmed-meshheading:16625070-Humans, pubmed-meshheading:16625070-Leiomyoma, pubmed-meshheading:16625070-Leiomyosarcoma, pubmed-meshheading:16625070-Male, pubmed-meshheading:16625070-Microfilament Proteins, pubmed-meshheading:16625070-Middle Aged, pubmed-meshheading:16625070-Muscle Proteins, pubmed-meshheading:16625070-Sarcoma, pubmed-meshheading:16625070-Skin Neoplasms, pubmed-meshheading:16625070-Smooth Muscle Myosins, pubmed-meshheading:16625070-Smooth Muscle Tumor, pubmed-meshheading:16625070-Soft Tissue Neoplasms, pubmed-meshheading:16625070-Tumor Markers, Biological
pubmed:year
2006
pubmed:articleTitle
Differential expression of smooth muscle myosin, smooth muscle actin, h-caldesmon, and calponin in the diagnosis of myofibroblastic and smooth muscle lesions of skin and soft tissue.
pubmed:affiliation
Department of Pathology, The Ohio State University Medical Center, Columbus, OH 43210, USA.
pubmed:publicationType
Journal Article