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Biomedical subjects

M Bonfiglio

Publications and source records attributed to M Bonfiglio.

At least 19 recordsLinked to original sources
PubMed1987

The malignant potential of enchondromatosis.

In a tri-institutional, retrospective study with long-term follow-up, forty-four patients who had multiple enchondromas were identified. Thirty-seven patients did not have hemangiomas (Ollier disease) and seven did (Maffucci syndrome). Of the thirty-seven patients who had Ollier disease, a low-grade chondrosarcoma developed in four; an astrocytoma, in one; and a granulosa-cell ovarian tumor, in one. In four of the seven patients who had Maffucci syndrome, there were six low-grade chondrosarcomas, one high-grade osteosarcoma, one pancreatic adenocarcinoma, one biliary adenocarcinoma, and one astrocytoma. None of the patients in either group died of the skeletal sarcoma, but four of five patients who had a non-skeletal malignant lesion died. From life-table analyses of these patients, we estimated that the incidence of secondary chondrosarcoma in patients who have Ollier disease is about 25 per cent at the age of forty years, and that malignant degeneration is almost a certainty in patients who have Maffucci syndrome. We concluded that periodic surveillance of the brain and abdomen for occult malignant lesions is indicated in patients who have enchondromatosis.

Adolescent↗
PubMed1984

Pregnancy and aggressive or malignant primary bone tumors.

The authors performed a retrospective study of 33 patients to assess the effect of pregnancy on the behavior of primary bone malignancies, and to develop a strategy for pregnant women with such malignancies focusing on decisions concerning the fetus. This study indicates that pregnancy has no effect on the clinical behavior of bone sarcomas, and, therefore, there is no reason to perform an abortion because of their simultaneous occurrence. However, optimal treatment of the tumor may cause irreparable harm to the fetus. Three main medical factors need to be considered when the future of the fetus is being decided: (1) the trimester at the time of diagnosis; (2) the anatomic site of the tumor; and (3) the type and grade of the tumor, as it relates to the expected treatment of the tumor.

Adult↗
PubMed1981

Synovial sarcoma: a review of 33 cases.

Thirty-three patients with synovial sarcoma were studied with respect to age, sex, site, clinical presentation, pathologic findings, and primary surgical treatment. Seventy percent of the patients were in the first three decades of life, and there was a 2:1 male predominance; the overall survival rate was 36%. There was a high local recurrence rate (64%) after simple local excision, and poor survival (27%). While wide local resection gave the best results (50% survival), it also carried a risk of high recurrence. Patients treated by amputation had a 42% survival rate. Thus, it can be concluded that adequate surgical treatment improved survival and reduced the recurrence rates. The lungs were the most common metastatic site, but lymph node metastasis occurred in 27% of the patients, often after tumor recurrence. Favorable prognostic factors included youth (patients younger than 20) and biphasic or epitheloid histologic types.

Adolescent↗
PubMed1980

Synovial sarcoma: an electron microscopic study of monophasic and biphasic forms.

Seven cases of synovial sarcoma were studied by electron microscopy. The 4 cases of the monophasic spindle type contained elongated cells arranged in sheets and cords; ultrastructurally the cells contained many cytoplasmic processes and were scattered in an amorphous matrix. The monophasic spindle type demonstrates ultrastructural characteristics that are unique and serve to differentiate it from the biphasic pattern and from fibrosarcoma. Three cases of the biphasic variety demonstrated cytologic characteristics of a true glandular epithelium and a malignant spindle cell stroma. The epithelial nature of the biphasic variety is a feature that raises doubt whether synovium is the stem cell.

Adolescent↗
PubMed1977

A solitary functioning osseous metastasis from a malignant pheochromocytoma of the organ of Zuckerkandl.

A case of a malignant phenochromocytoma of the organ of Zuckerkandl is reported. There was a solitary functional metastasis in the left femur, which was treated by hip disarticulation after removal of the primary. The patient is asymptomatic and free of further metastases after 3 years. Other reported cases of solitary metastases from malignant pheochromocytomas are cited. These occurred most frequently in the skeleton system, which is the most common site of distant metastases in malignant pheochromocytoma. The reported case and the review of the literature indicate that solitary or limited metastatic lesions should be treated surgically by partial or, when possible, complete resection.

Adolescent↗
PubMed1977

Roentgenographic search for avascular necrosis of the head of the femur in alcoholics and normal adults.

Roentgenograms of 1,410 hips from 705 alcoholics were compared with those of 200 hips from 100 controls for changes consistent with non-traumatic (idiopathic) necrosis of the femoral head according to the findings diagnostic of necrosis of bone that were outlined by the Decompression Sickness Panel of the British Medical Research Council. Abnormalities were found in 45.3 per cent of the alcoholics and 49 per cent of the controls. None of the findings showed any statistical difference between the controls and the alcoholics. It was concluded that the roentgenographic findings used were not valid in detecting the early or subtle changes of necrosis of the femoral head and that the changes found in both groups are common and probably non-specific.

Adult↗
PubMed1977

Eosinophilic granuloma and its variations.

The orthopedist is most likely to encounter solitary or multiple forms of eosinophilic granuloma of bone. Management includes curettage for diagnosis and treatment with insertion of autogenous bone. Radiation therapy and chemotherapy are reserved for patients with multiple lesions and for the less common forms of histiocytosis X, i.e., Hand-Schüller-Christian disease and Letterer-Siwe disease.

Adolescent↗
PubMed1976

Pathological fractures in the proximal part of the femur treated by Zickel-nail fixation.

Twenty-one patients were treated with Zickel nail for neoplastic pathological fracture or impending pathological fracture: in the femoral neck in three, in the intertrochanteric region in three, and in the subtrochanteric region in fifteen. Nineteen patients were restored to bed-chain status by the third postoperative day, and twenty were able to walk. Failure of fixation did not occur and there were no infections.

Adult↗
PubMed1975

Benign osteoblastoma: range of manifestations.

A study of twenty-five new cases of osteoblastoma and a review of 172 previously reported cases demonstrated the wide spectrum of manifestations of the lesion. The ratio of males to females was 2:1, with 80 per cent of the patients being under thirty years of age. The duration of complaints prior to diagnosis averaged seventeen months. The majority of the lesions were found in the spine or major long bones of the lower extremity. When complete excision of the tumor was done a cure always was the result, but incomplete curettage also affected a cure in some cases. Three cases presented in detail emphasize the wide variation in biological behavior which this lesion may exhibit. Histological characteristics of aneurysmal bone cyst may frequently appear in the tumor tissue. Radiotherapy does not alter the course of the disease and appears to be contraindicated.

Age Factors↗