FOLLICULAR CARCINOMA OF THYROID PRESENTING AS BACK PAIN LEADING TO A DELAY IN DIAGNOSIS

SUMMARY The case is described of a 53-year-old man presenting with right-sided low back and thigh pain. Non-urgent investigations showed a metastatic lesion in his right hemipelvis arising from a thyroid primary.     

脑梗塞头痛患者血浆肿瘤坏死因子（TNF）水平的变化

采用酶联免疫吸附法测定大脑中动脉区脑梗塞（ＣＩ）急性期１８例头痛患者与２２例非头痛患者和２８例对照组血浆ＴＮＦ含量，发现脑梗塞头痛组、非头痛组血浆ＴＮＦ含量（２．３３±０．２２μｇＬ、２．１１±０．２２μｇＬ）均显著（Ｐ＜０．０１）高于对照组（１．６４±０．２２μｇＬ），ＣＩ头痛血浆ＴＮＦ含量显著高于非头痛组（Ｐ＜０．０５）。研究结果提示：ＴＮＦ可能参与了ＣＩ头痛的发病过程。     

THYROTOXICOSIS PRESENTING AS A LIFE THREATENING HYPOKALAEMIC PARALYSIS: INVESTIGATION OF THE Na/K PUMP IN ISOLATED LEUCOCYTES

A 37-year-old Chinese man presented with the rapid onset of profound muscle weakness, and a serum potassium of 1.7 mmol/l. The intravenous infusion of undiluted potassium chloride (2 mmol/ml) through a central venous catheter resulted in rapid recovery. Further investigation revealed thyrotoxicosis. He was treated with carbimazole and subsequently remained well. We assessed Na/K pump activity in isolated leucocytes taken from the patient and found an exaggerated response to adrenaline which ceased after he became euthyroid.     

THE HISTOLOGICAL DISTRIBUTION OF THE BLOOD GROUP SUBSTANCES IN MAN AS DISCLOSED BY IMMUNOFLUORESCENCE : III. THE A, B, AND H ANTIGENS IN EMBRYOS AND FETUSES FROM 18 MM IN LENGTH

The ABH antigens have been mapped out in the tissues of embryos and fetuses, 18 to 125 mm crown to rump length, 6 to 14½ weeks ovulation age. Both the H and A,B antigens have the same distribution, and their spatial and temporal parallel obtains in intrauterine as well as extrauterine phases of life. The cell wall antigens are present in their maximal distribution in the youngest specimens available. They outline the endothelium of the cardiovascular system, and the cells of most of the epithelia throughout the body. The exceptions are the liver, the adrenal, and the nervous system, presumed to have lost the epithelial antigens at stages antedating the youngest specimens here described. The antigens of the stratified epithelia (and of the simple epithelia of the renal collecting tubules), together with the endothelial antigens, are permanent and persist into and throughout adult life. All other cell wall antigens disappear at a time characteristic for each organ. The antigenic recession coincides with recognizable steps of morphological advancement and often with assumption of function by the organ concerned; it is completed at about the end of the first trimester of pregnancy. The secretion-borne antigens first appear at the 35 to 40 mm stage (8 weeks ovulation age) in the salivary glands and in the stomach, to be followed in a constant sequence by the rest of the gastrointestinal tract, respiratory system, and pancreas. The secretion of these antigens persists throughout life. The early presence and wide distribution of the cell wall A,B antigens render them likely potential targets for maternal anti-A,B antibodies in heterologous pregnancies; the advent of the water-soluble substances at 8 weeks ovulation age may be providing a buffer shielding the fetal cell wall antigens by mopping up the maternal isoagglutinins.