1. Smith NP,Wilson Jones E. Multinucleate cell angiohistiocytoma: a new entity. Br J Dermatol. 1985;113:15. 2. Monteagudo B, Labandeira J, Ginarte M, Álvarez JC, De las Heras C, Cacharrón JM, et al. Multinucleate cell angiohistiocytoma. Actas Dermosiiliogr. 2005;96:272-3. 3. Chang SN, Kim HS, Kim SC, Yang WI. Generalized multinucleate cell angiohistiocytoma. J Am Acad Dermatol. 1996;35:320-2. 4...

1. Smith NP,Wilson Jones E. Multinucleate cell angiohistiocytoma: a new entity. Br J Dermatol. 1985;113:15. 2. Monteagudo B, Labandeira J, Ginarte M, Álvarez JC, De las Heras C, Cacharrón JM, et al. Multinucleate cell angiohistiocytoma. Actas Dermosiiliogr. 2005;96:272-3. 3. Chang SN, Kim HS, Kim SC, Yang WI. Generalized multinucleate cell angiohistiocytoma. J Am Acad Dermatol. 1996;35:320-2. 4...

Dendritic fibromyxolipoma is a rare and distinctive soft tissue neoplasm that is considered by many authors as a variant of spindle cell lipoma and characterized by the presence of dendritic cytoplasmic processes, plexiform vascular pattern, and keloidal collagen. It has never been reported in the larynx and hypopharynx. Its rarity and the potential to mistake it as a more clinically aggressive...

Hemangiopericytomas (HPC) are uncommon tumors that originate from perivascular cells of capillary vessels. HPC are about 1% of all vascular tumors and can be found in the head-neck region with an incidence between 16% and 33%. HPC is a neoplasm of uncertain malignant potential; it can behave as an aggressive tumor with metastases and increased mitotic activity or as a relatively benign neoplasm...

PEComas localized in the region of falciform ligament and broad ligament are exceedingly rare. Most of them are built of spindle neoplastic cells. We report a case of epithelioid PEComa of the falciform ligament and/or broad ligament. There is only one report of such neoplasm in English-language literature. Histologically, the tumor was composed of nests of epithelioid clear cells stained posit...

BACKGROUND Klippel-Trenaunay syndrome is a non-heritable venous malformation with bone and soft tissue hypertrophy and cutaneous nevi. CASE CHARACTERISTICS Neonate with Klippel Trenaunay syndrome born to a mother with past history of Gestational trophoblastic neoplasm. OBSERVATION Antenatally, a fetal vascular malformation was identified ultrasonologically at 29 weeks gestation. Acute myelo...

A capillary-cavernous hemangioma in an obturator lymph node was found incidentally in a 64 year-old woman who had undergone unilateral salpingo-oophorectomy and lymphadenectomy for an ovarian neoplasm. Vascular tumors of lymph nodes are briefly reviewed including eight previously described nodal capillary-cavernous hemangiomas. The association with other splanchnic hemangiomas is pointed out an...

61 Abstract. – Cervical paragangliomas are uncommon benign or malignant neoplasms, originated by stem cells of neural crest. It is not easy nowadays to define properly their biological behaviour, the possible multiple location and the association with Multiple Endocrine Neoplasms. After a wide review about recent diagnostic, pathological and clinical acquisition, authors report their caseload o...

In 1938, Owen described a malignant renal neoplasm with a peculiar histological pattern. The peculiarity consisted in the tumour cells forming glomerular structures made up of cuboidal cells with clear cytoplasm, indistinct borders and round hyperchromatic nuclei. The glomerular structures had no vascular tufts but showed, at the periphery, a limiting membrane lined by cuboidal cells in one or ...

The MR scans of 24 patients who had findings previously reported to be characteristic of occult cerebral vascular malformations were reviewed to demonstrate that such findings may also occur in primary or secondary neoplasms. Eighteen of the 24 patients were found to have hemorrhagic neoplasms. Additional criteria, such as multiplicity of lesions and the presence of edema, were of some help in ...