PubMed Health⌕ Search

Biomedical subjects

C Haye

Publications and source records attributed to C Haye.

At least 37 records · Page 2Linked to original sources
PubMed1985

Cytogenetic forms of retinoblastoma: their incidence in a survey of 66 patients.

Sixty-six retinoblastoma patients were investigated using high resolution banding techniques, sister chromatid exchange (SCE) studies, and esterase-D phenotype determination and dosage. Seven patients (in six families) were found to be carriers of a rearrangement of band 13q14 due to de novo deletions, apparently balanced de novo translocations, or parental insertions. The possible role of submicroscopic parental insertions is suggested to explain transmission of nonchromosomal forms through unaffected carriers.

Child↗
PubMed1985

[Bone sarcoma and malignant tumors of the retina].

Secondary bone sarcomas are frequent among children who have been treated previously for a retinoblastoma. The main point is that these bone sarcoma occur almost always after a bilateral retinoblastoma and more often in the irradiated area; from these, the classical concept of "radiocancer" was generally admitted. However, since many authors reported bone sarcomas occurring in a different location from the irradiated area, radiotherapy cannot be by itself the causative factor of these secondary bone sarcomas. Therefore the genetical factor is probably one of the predisposing factor. The authors report 6 cases of bone sarcomas with a review of the literature of bone sarcomas occurring in the irradiated field or not, for children "cured" of retinoblastoma.

Bone Neoplasms↗
PubMed1985

[Conservative treatment of tumors of the retina at the Curie Institute. Long-term results of 129 cases treated with Stallard's disk and electrons].

The authors report a retrospective study of 129 children with retinoblastoma treated from 1963 to 1977 at the Institut Curie by enucleation of the worst eye and conservative irradiation of the other eye; this irradiation was performed either with Stallard plaque (19 cases) or with electrons (110 cases). In 8 familial cases, no enucleation has been performed. T.E.M. was used from 1964 to 1973 and iterative photocoagulation since 1968. With a 5 years follow up, 88 children (68%) are living NED, 6 are lost. There was 34 treatment failures (26%) and 1 death from second malignant tumor. At 10 and 15 years, the results are stable despite the occurrence of two other second primary tumors. Irradiation preserved 73/94 (78%) of the irradiated eyes. The technical aspects of the radiotherapy with electrons and both ocular and vital prognostic factors are discussed.

Brachytherapy↗
PubMed1985

[Ganglioneuroblastoma of the orbit].

Ganglioneuroblastoma a transitional tumor of sympathetic origin has not yet been described as involving orbit. It is characterized by a mixture of cells ranging from primitive neuroblast to well differentiated ganglion cells within a neurofibromatous tissue. The prognosis is uncertain, as the tumor may either undergo maturation into a ganglioneuroma or may metastasize widely and rapidly as in neuroblastoma. We may postulate a relationship between ganglioneuroblastoma and Recklinghausen's neurofibromatosis in view of the development of the tumor in conjunction with the phacomatosis.

Cell Transformation, Neoplastic↗
PubMed1984

Incidence of anterior pituitary deficiency after radiotherapy at an early age: study in retinoblastoma.

Thirty-one patients treated for retinoblastoma in the first few years (3 months to 3 years and 6 months) of life were studied 2 to 15 years later. Radiotherapy delivered 1 300 to 6 500 rads to the hypothalamo-pituitary area. Growth deficiency was documented in 30% of all cases. Other pituitary deficiencies were the exception. The critical dose for GH insufficiency is between 2 000 and 3 000 rads, as in older children or adults. Our study does not support the hypothesis that the hypothalamo-pituitary area is more sensitive to radiation at an early age. Furthermore, conservative therapy of retinoblastoma leads to double lateral irradiation and will increase the number of GH deficient children after retinoblastoma.

Adolescent↗
PubMed1984

[Allergic granulomatous nodule of the conjunctiva].

Six cases of conjunctival allergic granulomatous nodules are reported. This benign lesion was described by Ashton and Cook in 1979. It is commonest in children and young people. Clinically it consists of one or more raised yellow nodules beneath the epithelium of the bulbar conjunctiva. Histologically these nodules consist of an amorphous eosinophilic material surrounded by epithelioid and giant cells arranged in a palisade; often some eosinophils are found in the inflammatory reaction. In the absence of surgical intervention these lesions can disappear spontaneously or after corticotherapy in a few weeks or months. According to Ashton and Cook these granulomas show the histologic feature of the Splendore Hoeppli phenomenon, that is, a giant cell and eosinophilic granulomatous reaction to an antigen-antibody precipitate in relation to parasite or fungi. In two cases Ashton and Cook found fragments of nematode larvae but usually no foreign bodies or parasites are identified in the lesions.

Antigen-Antibody Complex↗
PubMed1983

Spinal metastases with neurological manifestations. Review of 600 cases.

The authors have studied 600 cases of spinal metastasis causing a neurological syndrome. The most significant statistical data are reviewed. The cases are examined according to clinical characteristics, type of primary tumor, site of lesion, and survival. Each of these factors influenced the choice and results of treatment. As a general rule, combined treatment (surgery and radiotherapy) was used. Preliminary surgery was performed as an emergency, designed to halt progression of the neurological syndrome and to prevent its more serious manifestations. The technique and usefulness of surgery are discussed for different situations and the short-term results of treatment are related to the various factors involved.

Adolescent↗
PubMed1983

[Epithelioma of the lacrimal sac. Review of the literature and analysis of 8 cases].

Eight patients with lacrimal sac epitheliomas are reported and the published literature reviewed. Clinical signs of these very particular type of tumor are described, as well as their method of extension to the upper facial region which has now been perfectly documented by computed tomography images. Papillomatous forms are relatively frequent, progression of the tumors is slow, and the prognosis for recurrences is fairly good if extensive surgery has been applied.

Adult↗
PubMed1983

[Mucoepidermoid carcinoma of the conjunctiva. Clinical, histologic and ultrastructural study].

Four cases of muco-epidermoid carcinoma of the conjunctiva are described, with an electron microscopy study in one case. Three patients were over 70 years and the fourth one 39 years old. In all cases, the tumor was primarily located close to the limbus and appeared as a quiescent corneoscleral ulcer or as a diffuse limbal thickening. Histologically, they showed an admixture of epidermoid and mucus secreting cells on alcian blue staining, and this was confirmed by electron microscopy. These tumors appear to be locally aggressive and rapidly recurring, and they invade the intra-ocular structures and/or orbit. One patient died 6 years after the onset of the disease. Prognosis is therefore poor and the lesion requires early treatment by wide local excision and a strict follow up for early detection of any recurrence.

Adult↗
PubMed1983

[Lichen of the conjunctiva].

Lichen planus may occasionally involve the conjunctiva or other mucous membranes. Three new cases are described. Generally, white ridges appear on the palpebral conjunctiva, histological examination revealing inflammatory infiltration of the basal membrane, which is eroded by the infiltrate. The disease could be more frequent than indicated by the literature, but its treatment is usually disappointing.

Adult↗
PubMed1983

[Hemolymphangioma of the orbit in children].

Orbital hemolymphangiomas are extremely rare. Clinical and computed tomographic brain scan aspects mimic "inflammatory orbital pseudotumors". They frequently fluctuate in size with upper respiratory tract infections and may bleed, causing acute exophthalmos. Therapeutic approach remains difficult as complete surgical excision is always impossible and postoperative complications frequent with acute inflammatory relapses and/or hemorrhages. We describe 2 children with orbital lymphangiomas presenting as orbit tumors.

Child↗