Inclusion Body Fibromatosis : Morphology
Image Description
Gross Pathology: The resected specimens are small, skin-covered solid nodules with a whitish-grey firm cut surface.
Microscopic Features: The lesion is poorly circumscribed and extends into deep dermis and subcutis and surrounds the dermal appendages. The overlying epidermis may show acanthosis or hyperkeratosis. The lesion consists of a uniform population of bland myofibroblastic cells in a dense collagenous stroma.
microscopic features continue in the next image
Microscopic Features: The lesion is poorly circumscribed and extends into deep dermis and subcutis and surrounds the dermal appendages. The overlying epidermis may show acanthosis or hyperkeratosis. The lesion consists of a uniform population of bland myofibroblastic cells in a dense collagenous stroma.
microscopic features continue in the next image