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  1. Article ; Online: Sellar Mass in 2 Patients With Acute-Onset Headache and Visual Symptoms: Not Your Usual Pituitary Adenoma.

    Yu, Run

    AACE clinical case reports

    2023  Volume 9, Issue 6, Page(s) 197–200

    Abstract: Background/objective: Clinical diagnosis of rare aggressive sellar malignancies requires a high index of suspicion. The objective was to report 2 patients with primary sellar atypical teratoid (AT)/rhabdoid tumor (RT) who presented with acute-onset ... ...

    Abstract Background/objective: Clinical diagnosis of rare aggressive sellar malignancies requires a high index of suspicion. The objective was to report 2 patients with primary sellar atypical teratoid (AT)/rhabdoid tumor (RT) who presented with acute-onset headache and visual symptoms.
    Case report: Patient 1 was a 45-year-old woman who presented with 3 weeks of headache and 1 week of eye pain and diplopia. Magnetic resonance imaging (MRI) identified a 2.2-cm sellar mass. Pituitary hormone testing showed elevated prolactin and suppressed luteinizing hormone, follicle-stimulating hormone, and estradiol levels. Patient 2 was a 32-year-old woman who presented with 1 month of headache and 1 week of diplopia. MRI showed a 2.1-cm sellar mass. Hormonal test results were reportedly unremarkable. Both patients did not have a significant medical history. They each underwent transsphenoidal resection. Surgical histology and molecular studies were consistent with primary sellar AT/RT. After surgery, patient 1 developed bilateral blindness and was lost to follow-up. Patient 2 developed hypopituitarism; her visual symptoms improved temporarily but recurred 2 weeks later. Pituitary MRI showed sellar recurrence. She underwent further debulking, but the tumor recurred promptly again. Despite radiation therapy, she died 4 months after the original presentation.
    Discussion: AT/RT appears to be the most aggressive sellar malignancy.
    Conclusion: Based on the 2 cases presented and the literature, I conclude that rapidly progressive headache with subsequent visual impairment in women with large sellar masses is almost pathognomonic of sellar AT/RT.
    Language English
    Publishing date 2023-09-29
    Publishing country United States
    Document type Case Reports
    ISSN 2376-0605
    ISSN (online) 2376-0605
    DOI 10.1016/j.aace.2023.09.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: A Yet Unrecognized Cause of Unusually High Levothyroxine Replacement Dose: Protein-Losing Enteropathy.

    Yu, Run

    AACE clinical case reports

    2023  Volume 9, Issue 3, Page(s) 89–92

    Abstract: Background/objective: Large amount of protein wasting such as in nephrotic syndrome is a rare cause of high levothyroxine (LT4) replacement dose requirement. A case has been reported here that demonstrates that protein-losing enteropathy is a novel and ... ...

    Abstract Background/objective: Large amount of protein wasting such as in nephrotic syndrome is a rare cause of high levothyroxine (LT4) replacement dose requirement. A case has been reported here that demonstrates that protein-losing enteropathy is a novel and yet unrecognized cause of high LT4 replacement dose requirement.
    Case report: A 21-year-old man with congenital heart disease was found to have primary hypothyroidism and started LT4 replacement. His weight was approximately 60 kg. Nine months later, while he was taking LT4 100 μg daily, thyroid-stimulating hormone (TSH) level was >200 μIU/mL (normal range, 0.3-4.7 μIU/mL) and free thyroxine level was 0.3 ng/dL (normal range, 0.8-1.7 ng/dL). The patient had excellent medication compliance. LT4 dose was increased to 200 μg daily and then 200 and 300 μg every other day. Two months later, TSH level was 3.1 μIU/mL and free thyroxine level was 1.1 ng/dL. He did not exhibit malabsorption or proteinuria. His albumin levels had been low since the age of 18 years (mostly <2.5 g/dL). Stool α-1-antitrypsin levels and calprotectin levels were elevated on multiple occasions. Protein-losing enteropathy was diagnosed.
    Discussion: As most circulating LT4 is protein-bound, loss of protein-bound LT4 due to protein-losing enteropathy is the most plausible cause of the large LT4 dose requirement in this case.
    Conclusion: This case demonstrates that protein-losing enteropathy, through loss of protein-bound thyroxine, is a novel and yet unrecognized cause of high LT4 replacement dose requirement. In patients who require high LT4 dose for unclear reasons, albumin levels should be examined and protein wasting be suspected in those with low albumin levels.
    Language English
    Publishing date 2023-04-13
    Publishing country United States
    Document type Case Reports
    ISSN 2376-0605
    ISSN (online) 2376-0605
    DOI 10.1016/j.aace.2023.04.004
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Letter to the Editor From Yu: "Adrenal Medullary Hyperplasia: A Systematic Review and Meta-Analysis".

    Yu, Run

    The Journal of clinical endocrinology and metabolism

    2023  Volume 108, Issue 10, Page(s) e1159–e1160

    MeSH term(s) Humans ; Hyperplasia ; Adrenal Glands ; Adrenal Gland Neoplasms
    Language English
    Publishing date 2023-04-14
    Publishing country United States
    Document type Letter ; Comment
    ZDB-ID 3029-6
    ISSN 1945-7197 ; 0021-972X
    ISSN (online) 1945-7197
    ISSN 0021-972X
    DOI 10.1210/clinem/dgad226
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Is E2F1 a Potential Medical Therapy Target for Cushing Disease?

    Yu, Run

    Endocrinology

    2022  Volume 163, Issue 9

    MeSH term(s) Adenoma ; E2F1 Transcription Factor ; Humans ; Pituitary ACTH Hypersecretion/drug therapy ; Pituitary Neoplasms
    Chemical Substances E2F1 Transcription Factor ; E2F1 protein, human
    Language English
    Publishing date 2022-07-29
    Publishing country United States
    Document type Editorial ; Comment
    ZDB-ID 427856-2
    ISSN 1945-7170 ; 0013-7227
    ISSN (online) 1945-7170
    ISSN 0013-7227
    DOI 10.1210/endocr/bqac117
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Diffuse Involvement of Pancreas Should Raise Suspicion of Mahvash Disease, an Autosomal Recessive Pancreatic Neuroendocrine Tumor Syndrome.

    Yu, Run

    Academic radiology

    2022  Volume 29, Issue 11, Page(s) 1771

    MeSH term(s) Humans ; Neuroendocrine Tumors/diagnostic imaging ; Neuroendocrine Tumors/genetics ; Neuroendocrine Tumors/pathology ; Pancreatic Neoplasms/diagnostic imaging ; Pancreatic Neoplasms/genetics ; Pancreatic Neoplasms/pathology ; Pancreas/diagnostic imaging ; Pancreas/pathology ; Abdomen/pathology ; Syndrome
    Language English
    Publishing date 2022-09-06
    Publishing country United States
    Document type Letter
    ZDB-ID 1355509-1
    ISSN 1878-4046 ; 1076-6332
    ISSN (online) 1878-4046
    ISSN 1076-6332
    DOI 10.1016/j.acra.2022.08.003
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Thyroid function suppression after initiation of teprotumumab treatment.

    Yu, Run

    Endocrine

    2021  Volume 73, Issue 3, Page(s) 561–562

    Language English
    Publishing date 2021-03-15
    Publishing country United States
    Document type Journal Article
    ZDB-ID 1194484-5
    ISSN 1559-0100 ; 1355-008X ; 0969-711X
    ISSN (online) 1559-0100
    ISSN 1355-008X ; 0969-711X
    DOI 10.1007/s12020-021-02676-3
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Visual Vignette.

    Yu, Run

    Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists

    2021  Volume 26, Issue 10, Page(s) 1231

    MeSH term(s) Adult ; Humans ; Male ; Pituitary Diseases/diagnostic imaging ; Tolosa-Hunt Syndrome/diagnostic imaging
    Language English
    Publishing date 2021-01-19
    Publishing country United States
    Document type Case Reports ; Journal Article
    ZDB-ID 1473503-9
    ISSN 1530-891X
    ISSN 1530-891X
    DOI 10.4158/EP-2020-0049
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Central Hypothyroidism due to Pituitary Iron Overload.

    Yu, Run

    AACE clinical case reports

    2020  Volume 7, Issue 5, Page(s) 330–331

    Language English
    Publishing date 2020-12-16
    Publishing country United States
    Document type Journal Article
    ISSN 2376-0605
    ISSN (online) 2376-0605
    DOI 10.1016/j.aace.2020.12.009
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Malignant Insulinoma Is Largely Derived From Nonfunctioning Pancreatic Neuroendocrine Tumors: A Contemporary View.

    Yu, Run

    Pancreas

    2020  Volume 49, Issue 6, Page(s) 733–736

    MeSH term(s) Carcinoma, Islet Cell/diagnosis ; Carcinoma, Islet Cell/genetics ; Carcinoma, Islet Cell/therapy ; Female ; Gene Expression Profiling/methods ; Gene Expression Regulation, Neoplastic ; Glucagon-Secreting Cells/metabolism ; Homeodomain Proteins/genetics ; Humans ; Insulin-Secreting Cells/metabolism ; Insulinoma/diagnosis ; Insulinoma/genetics ; Insulinoma/therapy ; Male ; Neuroendocrine Tumors/diagnosis ; Neuroendocrine Tumors/genetics ; Neuroendocrine Tumors/therapy ; Pancreas/metabolism ; Pancreas/pathology ; Pancreatic Neoplasms/diagnosis ; Pancreatic Neoplasms/genetics ; Pancreatic Neoplasms/therapy ; Trans-Activators/genetics ; Transcription Factors/genetics
    Chemical Substances ARX protein, human ; Homeodomain Proteins ; Trans-Activators ; Transcription Factors ; pancreatic and duodenal homeobox 1 protein
    Language English
    Publishing date 2020-06-23
    Publishing country United States
    Document type Editorial
    ZDB-ID 632831-3
    ISSN 1536-4828 ; 0885-3177
    ISSN (online) 1536-4828
    ISSN 0885-3177
    DOI 10.1097/MPA.0000000000001562
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  10. Article: Successful Management of Pheochromocytoma and Thyroiditis With Fever by Telemedicine During the COVID-19 Pandemic.

    Yu, Run

    Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists

    2020  Volume 26, Issue 9, Page(s) 1042–1043

    MeSH term(s) Adrenal Gland Neoplasms/epidemiology ; COVID-19 ; Humans ; Pandemics ; Pheochromocytoma/epidemiology ; SARS-CoV-2 ; Telemedicine ; Thyroiditis
    Language English
    Publishing date 2020-11-24
    Publishing country United States
    Document type Letter
    ZDB-ID 1473503-9
    ISSN 1530-891X
    ISSN 1530-891X
    DOI 10.4158/1934-2403-26.9.1042
    Database MEDical Literature Analysis and Retrieval System OnLINE

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