منابع مشابه
Spontaneous regression of bilateral retinoblastoma.
A 24-year-old black man was found to have bilateral, spontaneously regressed retinoblastoma that had previously been misdiagnosed as post-traumatic chorioretinal scarring. His son and half-brother both had bilateral viable retinoblastoma. The ophthalmoscopic and fluorescein angiographic features of this patient's fundus lesions included a calcified, whitish mass located centrally in one of the ...
متن کاملSpontaneous regression of retinoblastoma in identical twins.
Spontaneous regression of retinoblastoma is described in identical twin boys. In the one bilaterally affected child 2 tumours regressed spontaneously, while a third lesion, which developed at a later stage, required treatment in the form of a cobalt plaque. The second child showed spontaneous regression of the single tumour in his only affected eye. The pathogenesis of spontaneous regression is...
متن کاملSpontaneous mutation rate in retinoblastoma.
A novel approach was used to estimate the in vivo mutation rate of the retinoblastoma gene. A mathematical formula can be used to calculate the probability of neoplasia induced by one or more mutations in a population of dividing cells. This formula can then be applied to epidemiological data on hereditary and sporadic retinoblastoma. The analysis yields an estimate of the in vivo mutation rate...
متن کاملSpontaneous regression of cancer.
Spontaneous regression of cancer is one of the most fascinating phenomena observed in medicine. It is generally regarded as inexplicable, although there are now some laboratory studies of regressed or regressing tumours, as well as new theoretical possibilities about mechanisms. In this review, the historical background, clinical features and possible mechanisms are discussed. The clinical aspe...
متن کاملSolitary osteochondroma: spontaneous regression.
A 15-year-old female had been followed in our department of pediatric radiology since the age of 11, in order to control a solitary osteochondroma (exostosis) of the right distal femur. Radiographs of the right distal femur (face-profile) and high frequency ultrasound studies (12-5 MHz) of this area were performed to assess the size of the lesion and the thickness of the cartilaginous cap. Foll...
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ژورنال
عنوان ژورنال: British Journal of Ophthalmology
سال: 1956
ISSN: 0007-1161
DOI: 10.1136/bjo.40.8.449