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Clear Cell Myomelanocytic Tumor of the Urinary Bladder
- Source :
- The American Journal of Surgical Pathology. 27:689-692
- Publication Year :
- 2003
- Publisher :
- Ovid Technologies (Wolters Kluwer Health), 2003.
-
Abstract
- Clear cell myomelanocytic tumors are a recently described neoplastic growth considered to be a member of the family of perivascular epithelioid cell tumor. These tumors have a predilection for falciform ligament/ligamentum teres. We report an additional case arising from the muscularis propria of the urinary bladder in a 33-year-old woman. The tumor consisted of clear to eosinophilic, epithelioid, and spindled cells arranged in fascicles or packets. A delicate vascular stroma was found among the nests. Immunohistochemically, the tumor cells were typically positive for HMB-45 and smooth muscle actin but negative for S-100 protein, Melan-A, desmin, and pan-cytokeratin. The patient has been free of the disease since the excision of the tumor 6 years ago. This case, in association with the expanding list of perivascular epithelioid cell tumor reported in different sites, suggests that this type of neoplasm may be ubiquitous.
- Subjects :
- Adult
Pathology
medicine.medical_specialty
Perivascular Epithelioid Cell
Pathology and Forensic Medicine
Neoplasms, Muscle Tissue
Stroma
Antigens, Neoplasm
Biomarkers, Tumor
medicine
Humans
Falciform ligament
Clear-Cell Myomelanocytic Tumors
Urinary bladder
business.industry
Epithelioid Cells
Muscle, Smooth
Immunohistochemistry
Neoplasm Proteins
Treatment Outcome
medicine.anatomical_structure
Urinary Bladder Neoplasms
Melanocytes
Female
Surgery
Desmin
Anatomy
Tomography, X-Ray Computed
business
Melanoma-Specific Antigens
Epithelioid cell
Clear cell
Adenocarcinoma, Clear Cell
Subjects
Details
- ISSN :
- 01475185
- Volume :
- 27
- Database :
- OpenAIRE
- Journal :
- The American Journal of Surgical Pathology
- Accession number :
- edsair.doi.dedup.....3e17c60688296c3d7f87b4bac7541dd5