1/17. Angiomyofibroblastoma of the female urethra.BACKGROUND: Angiomyofibroblastoma is a relatively recently described rare tumor of the superficial soft tissues. To date, 57 cases of angiomyofibroblastoma of the external genitalia in women have been reported. methods/RESULTS: We describe a case of a 24-year-old woman who presented with the urinary stream flowing out in the posterior direction and whose diagnosis was a urethral tumor, angiomyofibroblastoma. CONCLUSIONS: Angiomyofibroblastoma has a potential arising from the female urethra as well as other areas of the external genitalia.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
2/17. Giant cell angiofibroma of the oral cavity: report of a new location for a rare tumor.Giant cell angiofibroma is a rare, soft tissue tumor that was first described in the orbit. Since then, several case reports have described this tumor in a number of extra-orbital sites, suggesting a wider anatomic distribution than is generally recognized. The tumor typically acts in a benign fashion with only rare local recurrences but no tendency to metastatic disease. Here, we report the first case of a giant cell angiofibroma in the oral cavity. The tumor presented as a soft tissue nodule on the buccal mucosa of a 60-year-old man. The histologic differential diagnosis included a number of other uncommon soft tissue neoplasms, including giant cell fibroblastoma, solitary fibrous tumor, and pleomorphic lipoma. The histologic and immunohistochemical features of this tumor and differentiation from other histologically similar soft tissue neoplasms are briefly discussed.- - - - - - - - - - ranking = 4keywords = soft (Clic here for more details about this article) |
3/17. Giant cell angiofibroma of the inguinal region.Giant cell angiofibroma is a rare mesenchymal neoplasm most commonly arising in the soft tissues near the orbit. Recently, several cases of extraorbital giant cell angiofibroma have been reported. We report the light microscopic and immunohistochemical features of an additional case of extraorbital giant cell angiofibroma arising in the inguinal region that was clinically mistaken for an inguinal hernia. The patient was a 50-year-old woman who presented with a mobile, nonreducible, left inguinal mass. The tumor was 10.8 cm in greatest diameter, was well circumscribed, and appeared to be encapsulated. Histologically, the tumor was composed of a mixture of cytologically bland spindle-shaped cells and ovoid cells of varying cellularity with deposition in a variably collagenous and myxoid stroma. The tumor had prominent, various-sized blood vessels, often with perivascular hyalinization. In addition, scattered pseudovascular spaces filled with an amorphous eosinophilic material were present and lined by spindle-shaped and ovoid cells similar to those found throughout the neoplasm. Rare multinucleated floret-like giant cells were seen. Immunohistochemically, the tumor cells stained strongly and diffusely for both CD34 and bcl-2 while immunostains for S-100 protein, desmin, smooth muscle actin, and muscle-specific actin were negative. There is no evidence of local recurrence or metastasis 3 months following excision of the mass. This report emphasizes the recognition of this unusual tumor in extraorbital sites. We discuss the overlapping histologic and immunophenotypic features with giant cell fibroblastoma and solitary fibrous tumor and raise the possibility that these tumors could represent a histologic spectrum of CD34-positive dendritic interstitial cell neoplasms.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
4/17. Cellular angiofibroma of the vulva with dna ploidy analysis.Cellular angiofibroma (CAF) is a recently described rare soft tissue neoplasm of the vulva (with only four reported cases) that typically occurs as a well-circumscribed solid rubbery vulvar mass in middle-aged women. The distinct histologic features of bland spindle cells admixed with numerous hyalinized medium to small blood vessels, and a vimentin-positive desmin-negative immunoprofile differentiates this neoplasm from other vulvar tumors such as angiomyofibroblastoma and aggressive angiomyxoma. In this report an additional case of CAF is presented with dna ploidy analysis and CD99 immunohistochemistry.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
5/17. A study of four cases of extra-orbital giant cell angiofibroma with documentation of some unusual features.AIMS: To document the clinical, light microscopic, immunohistochemical and ultrastructural features of four cases of extra-orbital giant cell angiofibromas. methods AND RESULTS: Sections of formalin-fixed paraffin-embedded specimens were studied by haematoxylin and eosin, reticulin and immunohistochemical stains. Electron microscopy was carried out in two cases on tissue fixed in formalin. The age of the patients ranged from 30 to 41 years. Two patients presented with a soft tissue swelling in the left groin, one patient had a left axillary soft tissue lump and one patient presented with a parotid lump. All lesions were well circumscribed and contained variably cellular and vascularized tissue composed of round to spindle cells with a patternless arrangement, scattered multinucleate giant cells and pseudovascular spaces conforming to the description of giant cell angiofibroma. Mononuclear and multinucleate tumour cells were both positive for vimentin and CD34; one tumour exhibited focal S100 protein and GFAP positivity. Both of the tumours examined by electron microscopy showed fibroblastic features, but in addition one contained cells having Schwannian features. All four patients were well without recurrent disease on follow-up (average 25 months). CONCLUSION: Giant cell angiofibroma shares many features with solitary fibrous tumour and giant cell fibroblastoma and shows a wider distribution than initially recognized. Rarely, Schwannian differentiation may be observed in these tumours.- - - - - - - - - - ranking = 2keywords = soft (Clic here for more details about this article) |
6/17. Endoscopic transnasal resection of a juvenile angiofibroma using an ultrasonically activated scalpel.We report a case of juvenile nasopharyngeal angiofibroma (JNA). A 19-year-old male came to our clinic complaining of severe nasal obstruction and epistaxis. Imaging investigations using computed tomography and magnetic resonance imaging techniques revealed a soft tissue mass in the nasopharynx with minimal extension to the pterygopalatine fossa. After embolization of the internal maxillary artery, we successfully performed endoscopic transnasal surgery for a JNA using an ultrasonically activated scalpel. Endoscopic follow-up for the 18 months after the surgical procedure revealed no evidence of recurrence or residual tumor.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
7/17. Cellular angiofibroma of the vulva: a clinicopathological study of two cases with documentation of some unusual features and review of the literature.BACKGROUND: Cellular angiofibroma (CA) of the vulva is a recently described condition, whose clinical and pathological features are poorly known. methods: We have encountered two cases of this very unusual tumor. Their clinical and pathological features were analyzed and compared to those reported in the literature. RESULTS: Both patients were middle-aged women. In each case, the lesion had the clinical appearance of a vulvar cyst, located in the lateral aspect of the clitoris and the right labium majus, respectively. Microscopically, the lesions were well circumscribed but not truly encapsulated. Both were composed of small spindle cells arranged in short fascicles and mixed up with relatively abundant small- or medium-sized rounded vessels. While mitotic activity was perceptible in both cases, no cellular atypia could be demonstrated. A striking feature seen in one case was the presence of pseudoangiomatous changes in the stroma, similar to those occasionally found in spindle cell lipoma. Phenotypically, the tumor cells consistently expressed vimentin, CD99, and both estrogen and progesterone receptors. A discrete CD34 or smooth muscle actin immunoreactivity was also found in one case. No expression of S-100 protein, Bcl-2 protein, CD117 (c-kit gene product), epithelial membrane antigen, desmin, or h-caldesmon could be demonstrated. CONCLUSION: This study further illustrates that CA of the vulva has distinct clinical and pathologic features that set it apart from the other soft tissue conditions involving this area. However, like many soft tissue neoplasms, this tumor also exhibits some variation in its histological or immunohistochemical features.- - - - - - - - - - ranking = 2keywords = soft (Clic here for more details about this article) |
8/17. Cellular angiofibroma of the vulva: report of a case.A case of vulvar cellular angiofibroma in a 50-year-old woman was immunohistochemically examined. She presented with a right labial mass which was noticed four years before. Surgical excision of the mass was performed. Histopathological examination revealed typical characteristics of cellular angiofibroma. Immunohistochemically, the lesion was CD34 positive but non-reactive for desmin, smooth muscle actin and S-100 protein. In this article, we present a case of vulvar cellular angiofibroma, a lesion that should be considered in the differential diagnosis of vulvar soft tissue tumors.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
9/17. Endoscopic resection of a juvenile angiofibroma: the role of the XPS microdebrider.Juvenile angiofibromas are vascular tumors found almost exclusively in the adolescent male. Although benign, their clinical course can be aggressive and can result in major morbidity and mortality. Endoscopic transnasal resection of juvenile angiofibromas, confined to the nose, paranasal sinuses, pterygopalatine fossa, and medial infratemporal fossa, has been a significant advance in their management, eliminating or reducing the need for extensive soft tissue and bony dissection of traditional surgical approaches. We discuss a case of a juvenile angiofibroma resected transnasally using the XPS microdebrider (Medtonic Xomed, Jacksonville, florida) and outline the role of this instrument in this surgery.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
10/17. Vulvar cellular angiofibroma: a case report.Cellular angiofibroma is a benign growth initially described in 1997, with few reports to date. A 31-year-old woman presented with a 3-year history of a small left labial mass, which had recently increased in size to 5 cm, and was clinically thought to be a lipoma. A simple excision was performed. Histologically, the mass was consistent with a cellular angiofibroma. Ten months later, the growth has not recurred. Cellular angiofibroma is a rare, benign mesenchymal lesion typically occurring on the vulva, and should be considered in the differential diagnosis of a painless, soft, vulvar mass.- - - - - - - - - - ranking = 1keywords = soft (Clic here for more details about this article) |
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