Renal segmental hypoplasia

Renal segmental hypoplasia
Renal segmental hypoplasia
Other names	Ask-Upmark kidney
Specialty	Nephrology

Last updated November 12, 2025

Renal segmental hypoplasia is a kidney with a partially developed or atrophic renal cortex.^[1]

Presentation

Ask-Upmark kidneys are a cause of secondary hypertension that can be curable.^[2]

Cause

It is thought to be congenital or the consequence of vesicoureteral reflux.^[2] in IVU "Slit scar" is seen.

Diagnosis

References

↑ Sugimoto T, Tanaka Y, Nitta N, Uzu T, Nishio Y, Kashiwagi A (2006). "Renal segmental hypoplasia, Ask-Upmark kidney, in a patient with adult-onset hypertension". Intern. Med. 45 (19): 1101–2. doi: 10.2169/internalmedicine.45.1858 . PMID 17077574. Free Full Text.
1 2 Babin J, Sackett M, Delage C, Lebel M (2005). "The Ask-Upmark kidney: a curable cause of hypertension in young patients". Journal of Human Hypertension. 19 (4): 315–6. doi:10.1038/sj.jhh.1001822. PMID 15647775.

External links

Ask-Upmark kidney - whonamedit.com
Gross image of Ask-Upmark kidney - nature.com
Neuroretinitis, Ask-Upmark kidney and abnormal brain MRI - Journal of Pediatric Neurosciences

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[1] Sugimoto T, Tanaka Y, Nitta N, Uzu T, Nishio Y, Kashiwagi A (2006). "Renal segmental hypoplasia, Ask-Upmark kidney, in a patient with adult-onset hypertension". Intern. Med. 45 (19): 1101–2. doi: 10.2169/internalmedicine.45.1858 . PMID 17077574. Free Full Text.

[Babin-2] 1 2 Babin J, Sackett M, Delage C, Lebel M (2005). "The Ask-Upmark kidney: a curable cause of hypertension in young patients". Journal of Human Hypertension. 19 (4): 315–6. doi:10.1038/sj.jhh.1001822. PMID 15647775.

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