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PubMedDate not supplied

[Limitations of CAT scan in the diagnosis of myelolipoma of the adrenal gland].

The suprarenal myelolipoma is a myeloid tissue and fat tissue tumor. It can undergo degenerative processes of haemorrhage, necrosis and calcification. The diagnostic key is based on the finding of fat tissue in the inside of a suprarenal mass. A CAT would be the method allowing a more accurate diagnosis. Its limitations came from the presence of myelolipomas with abundant myeloid tissue, or which have suffered major degenerative processes in which it is difficult to identify the fat tissue, and in large retroperitoneal masses in which it is impossible to recognize their suprarenal origin.

Adipose Tissue↗

PubMedDate not supplied

Evaluation of B-cell function in diabetics by C-peptide determination in basal and postprandial urine.

Urinary C-peptide (UCP) values in basal and postprandial 2-hour samples are compared with simultaneous plasma C-peptide (PCP) values and with 24-hour UCP in 21 NIDDs, 24 IDDs and 9 controls. Basal and postprandial 2-h UCP was similar in controls and NIDDs (0.79 +/- 0.53 and 2.68 +/- 1.06 nmol/2 h versus 1.03 +/- 0.70 and 2.64 +/- 1.34, p greater than 0.05) and very low in IDDs (0.16 +/- 0.22 and 0.58 +/- 0.86, p less than 0.001). NIDDs showed basal (0.69 +/- 0.32 nmol/l) and postprandial (1.12 +/- 0.50) PCP values lower than controls (0.91 +/- 0.31 and 1.90 +/- 0.70). UCP clearance was higher in NIDDs than in controls. IDDs showed similar pattern of higher clearance but greater variability, the differences not being significant. It is concluded that despite correlations between PCP and UCP, possible differences can exist in C-peptide renal handling in diabetics, making unwise to use UCP as sole parameter of B-cell function in these patients.

C-Peptide↗