Open AccessDecoded: A Case Report on Dedifferentiated Liposarcoma on the Gluteal Area
Author(s) -
Juan Paolo David S. Villena,
Eileen Liesl A. Cubillan,
Ann Camille Q. Yuga
Publication year - 2021
Publication title -
acta medica philippina/acta medica philippina
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.128
H-Index - 4
eISSN - 2094-9278
pISSN - 0001-6071
DOI - 10.47895/amp.v55i5.2005
Subject(s) - histopathology , desmin , liposarcoma , pathology , vimentin , immunohistochemistry , sarcoma , stroma , soft tissue sarcoma , biology , soft tissue , medicine
Dedifferentiated liposarcoma is a soft tissue sarcoma of adipocytic lineage. Histopathology and immunohistochemistry are essential for diagnosis. A 51-year-old Filipino woman presented with a rapidly enlarging left gluteal tumor. Histopathology revealed a multilobulated tumor having prominent myxoid stroma with numerous stellate-shaped, atypical cells bearing atypical mitotic figures. Other lobules were composed of sheets of pleomorphic cells, with atypical mitotic figures. The tumor stained positively with alcian blue, vimentin, MDM2 and p16 stains. Other immunohistochemical (IHC) studies done (pancytokeratin, CK7, CK 20, CD 34, CEA, desmin, EMA, SMA, S100) showed negative results. After a 2 cm wide excision of the sarcoma, patient was free from local tumor recurrence for 2 months, after which she was lost to follow-up. We report this case and a brief review of the current literature on dedifferentiated liposarcoma.