Prolactinomas in men tend to be large tumors and are often invasive.
A prolactinoma case from Dr. Blevins’ clinic
March 25, 2024
Dr. Blevins Corner
Medical comments from Dr. Lewis Blevins MD. Director Center for Pituitary Disorders at University California San Francisco
How does vasopressin work?
April 7, 2015
From Lewis S. Blevins, Jr. MD – Vasopressin acts on the kidney to reabsorb water from the urine to restore plasma osmolarity to normal to prevent dehydration. Simple enough. Right? Hold on a minute! Our
Thirsty? For water? How about knowledge?
April 7, 2015
From Lewis S. Blevins, Jr. MD – Ever wondered why your sense of thirst and the control of your diabetes insipidus reflected by the degree of polyuria might seem disconnected? Well, it’s because they are!
Diabetes Insipidus: Our survey report is in!
March 30, 2015
From Lewis S Blevins, Jr MD – One hundred ninety-eight persons completed our survey on diabetes insipidus. Approximately two-thirds of respondents reside in the United States whereas 14% live in Great Britain, 7% live in
How do somatostatin analogs work?
March 16, 2015
From Lewis S. Blevins, Jr. MD – Somatostatin analogs are a class of drugs that are chemically modified forms of native somatostatin. They are meant to act like somatostatin. Somatostatin is produced in our bodies,
An overview of anterior hypopituitarism.
March 9, 2015
From Lewis S. Blevins, Jr. MD – I define hypopituitarism as the partial or complete deficiency of one or more anterior pituitary hormones. Panhypopituitarism is, of course, deficiency of all of the anterior pituitary
A featured essay by Dr. Blevins on the Art of Medicine in this month’s issue of Operative Neurosurgery
March 2, 2015
The March 15th issue of Operative Neurosurgery features an article by Dr Lewis Blevins on the Art of Medicine. You can go to the publication’s website to read the article or download a PDF here. In
The complexities of diagnosing pituitary disorders
February 22, 2015
From Lewis S Blevins, Jr. MD – Most of us know of the complexity of the hypothalamic-pituitary and target gland systems in health and disease. Further, the target gland hormones are carried in the blood
About the expansion of knowledge
February 5, 2015
From Lewis S. Blevins, Jr, MD – This is an iPhone photo, through my telescope, of Jupiter and the four Galilean moons. Unfortunately, the exposure did not illustrate the beautiful banding of the planet. The
Acromegaly guidelines: How useful are they?
January 28, 2015
From Lewis S. Blevins, Jr. MD – Every few years, one organization or another releases “guidelines” and “recommendations” regarding the management of patients with acromegaly. These often include algorithms provided by an “acromegaly consensus group”
Pituitary blood flow
December 30, 2014
From Lewis S Blevins, Jr MD – The pituitary gland is certainly quite small, and not metabolically active when compared to other organs, thus commands a very small fraction of the cardiac output. Pituitary blood
Inaccessible residual growth hormone producing pituitary adenoma
December 20, 2014
From Lewis S. Blevins Jr. MD – This person has residual growth hormone producing pituitary adenoma that was inaccessible to the surgeon via the transsphenoidal route. I must say, however, that about 90 to 95%
Postoperative Evaluation of Patients with Cushing’s Disease.
December 12, 2014
From Lewis S. Blevins Jr, MD – One of the greatest challenges facing medical practitioners is in the recognition and diagnosis of Cushing’s syndrome and disease. As if this not sufficiently difficult, an even greater