Fibrous hamartoma of infancy. A study of eight cases with immunohistochemical and electron microscopical findings.
Eight cases of fibrous hamartomas of infancy are presented. Actin positivity and desmin negativity in collagen forming spindle-shaped cells and electron microscopical findings point to the myofibroblastic nature of this entity. "Dark cells" which spread regularly in all but one of our tumors were immunohistochemically determined to be a mixture of B and T cell lymphocytes. Their selective location and possible role are discussed.
Michal
M
M
Department of Pathological Anatomy, University Hospital, Dobrany, Czechoslovakia.
Mukensnábl
P
P
Chlumská
A
A
Kodet
R
R
D000199:Actins / Q000032:analysis; D002675:Child, Preschool; D005260:Female; D006222:Hamartoma / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure; D006801:Humans; D007223:Infant; D008297:Male; D008854:Microscopy, Electron; D009418:S100 Proteins / Q000032:analysis; D012983:Soft Tissue Neoplasms / Q000737:chemistry / Q000473:pathology* / Q000648:ultrastructure
D000199:Actins; D009418:S100 Proteins