Pseudomyogenic hemangioendothelioma is a rare, recently described neoplasm that usually presents as multifocal lesions in a single extremity. The disease has demonstrated a high propensity for infiltrative growth and local recurrence but limited metastatic potential. Variations of histological appearance and immunohistochemical signatures have been described, but typically involve spindle or po...

CONTEXT Solid and cystic papillary neoplasm of the pancreas is an extremely rare neoplasm that mostly affects young females in the mean age of 25 years and accounts for about 0.2-2.7% of all pancreatic tumors. CASE REPORT A 18-year-old female presented with progressively increasing mass in the left hypochondrium and epigastric regions and vague abdominal pain. There was no history of jaundice...

Dermatofibrosarcoma protuberans (DFSP) is a rare, low-grade, cutaneous neoplasm with pronounced tendency for local recurrence. A case of DFSP that showed direct infiltration into the underlying bone marrow is described. To the best of our knowledge, such direct bony involvement by dermatofibrosarcoma has not been reported in the English literature to date. The role of imaging is also discussed ...

leiomyoma is a rare benign neoplasm deriving from smooth muscle. vascular leiomyoma is its most common subtype in the oral cavity. it may appear at any age with the greatest incidence in the 4th and 5th decade of life. the common manifestation is a slow-growing, asymptomatic, submucousal mass. the diagnosis is only through microscopic examination requiring special staining. treatment of choice ...

abstract liver neoplasm is not an uncommon disease in asian countries. liposarcoma is a rare mesenchymal malignant tumor which usually originates in the retroperitoneum and extremities. from 1973 till now about 10 cases of primary liver liposarcoma have been reported. we present the eleventh case in a young adult female with uncommon presentation. she suffered from a huge mass in the right port...

Leiomyoma is a rare benign neoplasm deriving from smooth muscle. Vascular leiomyoma is its most common subtype in the oral cavity. It may appear at any age with the greatest incidence in the 4th and 5th decade of life. The common manifestation is a slow-growing, asymptomatic, submucousal mass. The diagnosis is only through microscopic examination requiring special staining...

Proliferating pilomatricoma is proliferative, rare tumor variant of pilomatricoma. It is a benign neoplasm of hair matrix that can have potentially involve local recurrence. We report the case of a 60-year-old man who presented an asymptomatic nodule on the scalp. Histological exam demonstrated a basaloid epithelium at the periphery, filled with eosinophilic cornified material containing shadow...

Granular cell tumor is a rare benign neoplasm most commonly appears in the head and neck region, especially in the tongue, cheek mucosa, and palate. Occurrence in limbs is even rarer. These tumors account for approximately 0.5% of all soft tissue tumors. Granular cell tumor can also affect other organs including skin, breast, and lungs. Local recurrence and metastasis is potentially higher in m...

L entigo maligna (LM) is an in situ lesion with a 2% to 50% risk of progression to LM melanoma. Currently, surgery or radiotherapy is usually recommended as the primary treatment for LM. In the literature, the recurrence rates reported for radiotherapy range from 0% to 19%, with a mean recurrence rate of approximately 7%; in addition, radiotherapy carries the risk of causing chronic radiodermat...

Ameloblastoma is a common benign, locally aggressive odontogenic neoplasm that usually occurs in the vicinity of mandibular molars or ramus. Uncontrolled, ameloblastoma may cause significant morbidity and occasionally death. The majority ameloblastomas are multicystic, which more difficult to eradicate than unicystic peripheral varieties. Although surgery mainstay treatment, extent resection co...