Collagenous fibroma is an extremely rare benign soft tissue tumor which arises in the subcutaneous tissue or muscle. We report a rare case of a collagenous fibroma in a 44-year-old woman who presented with a mass in the anterior chest wall. Microscopically, the tumor was hypocellular and consisted of diffuse bland spindle to stellate – shaped cells embedded in a collagenous stroma. Immunohistoc...

Fig 1. Desmoplastic trichoepithelioma and melanocytic nevus (collision tumor). Dermoscopy of the skin-colored papule on the right cheek (clinical detail) disclosed sharply focused, fine arborizing vessels (arrows), mostly at the periphery on a white-ivory background (black asterisk) in the upper half of the lesion and structureless light-brown (white asterisk) in the lower half. Few white clods...

Desmoplastic ameloblastoma (DA) is an uncommon variant of ameloblastoma that accounts for 4-13% of ameloblastomas. It differs from classical ameloblastoma in its site of occurrence, radiographic features, and histologic appearance. The World Health Organization (2005) classified this tumor as a variant of ameloblastoma. DA is a benign tumor with typical histopathological and radiographic featur...

The aim of the present study is to examine all cases of intraosseous benign ameloblastomas treated between 1970 and 2010 in a single institution and to look for a possible correlation between the histopathological aspects and the demographical and clinical parameters, as well as the treatment outcome. The data of a total number of 44 patients were retrieved from the records. Nine patients were ...

RATIONALE Desmoplastic fibroma (DF) is a rare, locally invasive but benign bone tumor. It represents one of the rarest bone diseases, with an incidence of only 0.11% of all primary bone tumors. PATIENT CONCERNS Herein, a case of massive and unusual DF, with simultaneous involvement of ilium and ischium, is described. A 29-year-old man suffered minor pain in his right hip for 2 years. It worse...

Desmoplastic fibroma (DF) is a benign, rare fibroblastic intraosseous neoplasm histologically resembling a desmoid soft tissue tumor. Although classified as benign, DF frequently exhibits an aggressive behavior, has a moderate-to-high recurrence rate, and often causes pathological fractures and extensive bone destruction. This case report presents an incidentally detected DF of the tibia, which...

Desmoplastic infantile gangliogliomas (DIG) are uncommon supratentorial brain tumors with a usually good prognosis despite an aggressive radiological appearance that typically occurs in infants below the age of 24 months. DIGs are exclusively supratentorial, generally have a voluminous size, and are partially cystic. Total surgical removal is sufficient for the treatment of these tumors, and no...