Epithelioid Leiomyosarcoma of Skin: A case report.
- Author:
Han Seong KIM
;
Nam Bok CHO
;
Hyun Soon LEE
;
Kye Yong SONG
- Publication Type:Case Report
- Keywords:
Epithelioid;
Leiomyosarcoma;
Skin;
Subcutaneous;
Metastasis
- MeSH:
Actin Cytoskeleton;
Actins;
Alcian Blue;
Amylases;
Cytoplasm;
Dermis;
Digestion;
Eosinophils;
Female;
Humans;
Leiomyosarcoma*;
Middle Aged;
Muscle, Smooth;
Neoplasm Metastasis;
Periodic Acid-Schiff Reaction;
Physical Examination;
Shoulder;
Skin*;
Subcutaneous Tissue;
Vimentin
- From:Korean Journal of Pathology
1998;32(9):700-703
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
This report concerns a rare malignant smooth muscle neoplasm of the skin and the subcutaneous tissue, which was examined immunohistochemically and ultrastructurally. It occured in a 48-year-old female patient who had suffered from painful nodules on the left shoulder. The nodules were removed and diagnosed as a benign fibrohistiocytic tumor. One year after local excision, multiple nodules were detected by physical examination at the previous operation site. Grossly, thirteen well-defined small nodules had spread in the dermis and the subcutaneous tissue, of which nine were located from lower dermis to the subcutaneous tissue and four were in the subcutaneous tissue. Histologically, each nodule consisted mainly of epithelioid tumor cells having eosinophilic or clear plump cytoplasm and round to oval nuclei with small nucleoli, and some peripheral spindle tumor cells. The tumor cells were negative for PAS reaction with and without diastase digestion or alcian blue. Immunohistochemically, tumor cells were positive for smooth muscle actin and vimentin. Ultrastructurally, the tumor cells showed actin filaments and dense bodies in cytoplasm. This case was diagnosed as an epithelioid leiomyosarcoma of the skin and the subcutaneous tissue with local metastasis one year after local excision.
