title: Proliferative fasciitis in the abdominal region.
abstract: A 30-year old man with no trauma history presented to our department of dermatology with a 2-year history of abdominal painful masses. The spontaneous pain and tenderness in the abdominal region gradually worsened. Physical examination revealed 3 firm, irregular subcutaneous nodules measuring 1 x 0.5 cm, which were movable and unattached to the overlying skin. One of the nodules was ulcerated (Figure 1). Histopathologic examination showed spindle-shaped fibroblast cells intermingled with gangliocyte-like giant cells in the hypodermis with an infiltrate made of lymphocytes and histiocytes (Figure 2 and Figure 3). The immunohistochemical staining showed the negativity of the fusiform cells and the gangliocyte-like cells to anti-S100 protein and to anti-smooth muscle actin.
authors.forename: Ines
authors.initials: I
authors.lastname: Zaraa
authors.forename: Anissa
authors.initials: A
authors.lastname: Zaouak
authors.forename: Dalenda
authors.initials: D
authors.lastname: El Euch
authors.forename: Ines
authors.initials: I
authors.lastname: Chelly
authors.forename: Slim
authors.initials: S
authors.lastname: Haouet
authors.forename: Mourad
authors.initials: M
authors.lastname: Mokni
authors.forename: Amel
authors.initials: A
authors.lastname: Ben Osman
mesh_terms: D034861:Abdominal Wall / Q000473:pathology; D000328:Adult; D003937:Diagnosis, Differential; D005208:Fasciitis / Q000175:diagnosis* / Q000378:metabolism / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D012867:Skin / Q000378:metabolism