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Biomedical subjects

F Flam

Publications and source records attributed to F Flam.

At least 73 records · Page 4Linked to original sources

IGF2 is parentally imprinted during human embryogenesis and in the Beckwith-Wiedemann syndrome.

The phenomenon of parental imprinting involves the preferential expression of one parental allele of a subset of chromosomal genes and has so far only been documented in the mouse. We show here, by exploiting sequence polymorphisms in exon nine of the human insulin-like growth factor 2 (IGF2) gene, that only the paternally-inherited allele is active in embryonic and extra-embryonic cells from first trimester pregnancies. In addition, only the paternal allele is expressed in tissues from a patient who suffered from Beckwith-Wiedemann syndrome. Thus the parental imprinting of IGF2 appears to be evolutionarily conserved from mouse to man and has implications for the generation of the Beckwith-Wiedemann syndrome.

Alleles

Psychosocial impact of persistent trophoblastic disease.

The female identity of women who suffer from hydatidiform mole developing into persistent trophoblastic disease is threatened in two ways. The reproductive failure is shortly followed by a disease originating in the uterus requiring chemotherapy. Although somatic treatment results are excellent, the psychological effects may be severe and protracted. We conducted a study of 22 women who were between 6 months and 5 years after the end of successful treatment. It appeared that 19 women suffered from psychological sequelae. The three oldest women of the study group, 50 years or older, belonged to the group of women demonstrating signs of prolonged psychological effects.

Adaptation, Psychological

Ovarian carcinoma causing cerebellar degeneration.

Subacute cerebellar degeneration can be associated with malignancies. If the underlying tumor is a gynecological one, Purkinje cell cytoplasmic antibodies in serum serve as tumor markers.

Antibodies, Neoplasm

Incidence of gestational trophoblastic disease in Stockholm County, 1975-1988.

An epidemiological study with the aim of establishing the incidence of hydatidiform mole, persistent trophoblastic disease and choriocarcinoma in Stockholm County was performed. Based on the regional cancer registry and hospital registers, the incidence for 1975-1988 was calculated for the number of deliveries as well as the total number of pregnancies. Of the molar pregnancies, 6% were treated with chemotherapy because of invasive mole or choriocarcinoma. Non-molar choriocarcinoma occurred in 1/33,717 deliveries. Difficulties in assessing the incidence of gestational trophoblastic disease are discussed.

Adolescent

Under-registration of gestational trophoblastic disease in the Swedish Cancer Registry.

The paper presents a study of completeness of registration of hydatidiform mole and gestational trophoblastic neoplasia in the Swedish Cancer Registry. The study is based on patients treated in Stockholm County, Sweden from 1971 through 1986. Non-notified cases were identified through a computerized register covering nearly all hospital admissions in the region and local hospital patient register. The results show that 25% of the cases with a diagnosis of hydatidiform mole were not included in the cancer register. Of all patients treated for trophoblastic malignancy, 66% were not recorded in the Cancer Registry. The frequent absence of histopathological confirmation in cases with malignant trophoblastic disease was probably the main factor contributing to the observed under-registration. The study indicates that the Swedish Cancer Registry alone does not provide sufficient data for studies on the incidence of gestational trophoblastic disease.

Female

Benign mixed Müllerian tumor of the ovary.

A case of benign Müllerian tumor of the ovary in a 53-year old woman is reported. The stromal element consisted of rhabdomyoblasts which clearly indicate that this tumor belongs to the Müllerian family. She remains free of disease 12 months following an abdominal hysterectomy and bilateral salpingo-oophorectomy.

Female

Medical induction prior to surgical evacuation of hydatidiform mole: is there a greater risk of persistent trophoblastic disease?

A retrospective study was undertaken to assess whether stimulation of uterine contractility prior to surgical evacuation of a molar pregnancy will lead to an increased frequency of persistent trophoblastic disease. Forty-seven patients treated with chemotherapy for persistent trophoblastic disease after a hydatidiform mole between 1971 and 1988 were evaluated. The use of medical methods in this study group was compared to a control group of 219 patients with hydatidiform mole not requiring further treatment. A medical method, mainly treatment with prostaglandins, was used in 61.7% in the study group compared to 35.2% in the control group. This difference was, however, due to different stage distribution in the groups. Persistent disease was significantly correlated to uterine size and medical methods were mainly used in patients where uterine size corresponded to 15 weeks gestation or more. In this subset of patients, a medical method was used in the same frequency in both groups. Thus, large uterine size seems to be an independent risk factor. We conclude that stimulation of uterine contractility, which in Sweden is frequently used before surgical evacuation of the uterus in patients with hydatidiform mole and large uteri, carries no additional risk.

Adolescent

Choriocarcinoma of the fallopian tube associated with induced superovulation in an IVF program; a case report.

The authors present a case of choriocarcinoma of the fallopian tube. The patient was enrolled in an IVF program and to our knowledge this is the first report of a choriocarcinoma following treatment with clomiphene citrate and hMG. The possible role of superovulation in inducing the tumour is discussed. The patient was treated by conservative surgery only and is in remission 1.5 years after the event.

Adult

Antibody to human chorionic gonadotropin detected choriocarcinoma.

Persistently elevated levels of serum human chorionic gonadotropin (hCG) in women call for a tumor investigation, if pregnancy can be ruled out. We present a case of increased hCG concentrations for 1 1/2 years. Radiolabelled antibody directed against the hCG molecule indicated the source of production to be a choriocarcinoma. The patient was cured by multiagent chemotherapy.

Adult