Leukocytes and macrophages, obtained from fibroma-immune rabbits and added to immune serum-fibroma virus mixtures, significantly increased the neutralization of fibroma virus as compared with immune serum alone. Immune cell suspensions from peritoneal exudates, regional lymph nodes, buffy coats, spleen, and liver were all effective in inhibiting fibroma virus. Approximately 2000 to 4000 immune ...

Desmoplastic melanoma tends to present as firm, amelanotic papules. Microscopically, it reveals a proliferation of fusiform cells in the dermis and variable collagen deposition, as well as intraepidermal melanocytic proliferation of lentiginous type in most cases. Biopsy in a 61-year-old white male patient, who had received a diagnosis of lentigo maligna on his face 10 years before, revealed a ...

Cardiac fibromas are rare benign tumors usually seen in the pediatric population. Generally, long-term survival after surgical resection is favorable, and recurrence of fibroma has been hardly reported. Herein, we report a case of a 34-year-old woman who presented with ventricular tachycardia 21 years after resection of a cardiac fibroma and was found to have a recurrent giant cardiac fibroma. ...

Introduction Gingival growths are one of the most frequently encountered lesions in the oral cavity. Most of these lesions, such as irritational fibroma, pyogenic granuloma, peripheral ossifying fibroma and peripheral giant cell granuloma, are innocuous and rarely present with aggressive features. In majority of cases, these lesions are the result of trauma or chronic irritation. One of the inf...

Chondromyxoid fibroma is a rare benign bone tumor. The etiology of chondromyxoid fibroma is still unknown. We report a case of a 26-year-old male who suffered from chronic cough for a year. His chest radiograph showed a lobulated tumor over the left seventh rib. The computed tomography (CT) examinat ion further revealed an osteolytic tumor arising from the left seventh rib with calcified matrix...

juvenile ossifying fibroma (jof) is a rare, benign, locally aggressive entity of the extragnathic craniofacial bones with a high tendency towards recurrence. two distinctive microscopic patterns of juvenile ossifying fibroma have been described: a trabecular juvenile ossifying fibroma (trjof) and a psammomatoid juvenile ossifying fibroma (pjof). psammomatoid variant is predominantly a craniofac...

Desmoplastic melanomas are rare amelanotic melanomas that usually occur on skin with sun exposure. In this report, we present a 72-year-old man who presented with a desmoplastic melanoma of the penis. To our knowledge this represents the first reported case of primary desmoplastic melanoma of the penis. We discuss the pathologic differential and histologic evaluation.

Central cementifying fibroma is a rare non odontogenic tumor coming in the group of fibro osseous lesion, arising from periodontal ligament and is usually seen in tooth bearing area. It can affect both the mandible and the maxilla, particularly the mandible. This bone tumour consists of highly cellular, fibrous tissue that contains varying amounts of calcified tissue resembling bone, cementum o...