A naturally occurring cutaneous fibroma of deer has proven to be experimentally transmissible in deer. The causative agent is a virus that is readily alterable through Berkefeld N candles and that survives in fibroma tissue for at least as long as 27 months in glycerol-saline at -20 degrees C. The experimentally produced deer fibroma has an incubation period of about 7 weeks, a very slow rate o...

We here report the case of a 65-year old patient presenting with pain in the right ankle evolving for about 15 years, without manifestations of primary trauma. Clinical examination showed painful slightly swollen right ankle with limp, requiring the use of a cane. Patient's general status was preserved, with normal laboratory tests for infections. Standard radiological evaluation of the right a...

Diagnosis of hydatid disease (HD) is usually based on its clinical and radiologic presentation. However, radiologic appearances of bone lesions are nonspecific and mimic inflammatory diseases and neoplasms.6 Despite limited experience with fine needle aspiration biopsy (FNAB) in the evaluation of cystic bone lesions, HD is diagnosed in cytology.1-5 A 33-year-old woman presented with right hip p...

Intraarticular synovial fibroma is extremely rare with only 14 known cases reported in the literatures. Descriptions and illustrations about the imaging features are also limited. We hereby present a case of synovial fibroma in the knee joint which shares similar imaging features and clinical presentations with localized pigmented villonodular synovitis (PVNS). Therefore, it is important that s...

A case of peripheral ossifying fibroma (POF) in the mandibular gingiva of a 30-year-old man is described. The lesion was asymptomatic, firm, pinkish red and pedunculated histologically showing cellular, fibrous connective tissue stroma with calcified osseous and cementum-like calcifications. Lesions histologically similar to peripheral ossifying fibroma (POF) have been given various names in th...

Calcifying aponeurotic fibroma is a rare soft tissue tumor that typically occurs in the distal extremities of children and adolescents. Because a calcifying aponeurotic fibroma is an ill-defined mass and has a tendency to infiltrate the surrounding tissue, local recurrence rates are 50%. We report a case of calcifying aponeurotic fibroma occurring in the elbow region, an uncommon site. The pati...

Several studies have noted benign thecoma‑fibroma tumors with positive F‑18 fluorodeoxyglucose (FDG) accumulation mimicking malignant ovarian tumors following F‑18 FDG positron emission tomography (PET). The present study analyzed four cases with false‑positive F‑18 FDG PET/computed tomography (CT) diagnoses of thecoma‑fibroma tumors as malignant tumors due to F‑18 FDG accumulation, compared wi...

Tumors were induced in adult and newborn rabbits by inoculation of fibroma virus. Whereas tumors completely regressed in adult rabbits by 3 weeks after virus inoculation, newborn rabbits supported tumor growth for 3 to 4 weeks. In the latter case, some animals died at this time, others survived with a gradual regression of the tumors over an additional period of 5 to 6 weeks. Virus neutralizati...

BACKGROUND Fibrous dysplasia, ossifying fibroma, and desmoplastic fibroma are rare benign calvarial lesions, which can have local aggressive behavior. These tumors can present with similar clinical and radiologic characteristics making diagnosis difficult at times. CASE DESCRIPTION A 16-year-old male presents after noting an indentation of his skull. Comparison with current and previous imagi...

BACKGROUND The ovarian cellular fibrous tumor with mitotic figure >4 per 10 high power field without moderate to severe atypia is defined as mitotically active cellular fibroma according to the 2014 World Health Organization classification. As this category is new and rare now, we described here a case of MACF and reviewed the literature. CASE We present a case of mitotically active cellular ...