Horseshoe kidney causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief:

Overview

During early fetal development, the kidneys are developed in the pelvis and then later they move upwards in abdomen. Sometimes due to unknown reason the lower ends of both kidneys fuse together forming a 'U' shaped single kidney. Although the exact cause is unknown, but there are two main theories.

  • One theory suggests that during the fifth week of fetal development both kidneys are so close together leading to mechanical fusion of lower end of both kidneys. This kind of fusion creates the fibrous isthmus because it is made of connective tissue.
  • Other theory suggests that posterior nephrogenic cells, which are the cells responsible for formation of kidney, migrate to wrong place leading to joining of lower end of both kidneys. This time it is called parenchymal isthmus because it is made of kidney cells.

The horseshoe kidney remains lower in abdomen than normal kidneys due to blockade caused by inferior mesenteric artery during its movement from pelvis to abdomen in 7-8 weeks of development.

Causes

Life-threatening Causes

  • Life-threatening causes include conditions which may result in death or permanent disability within 24 hours if left untreated. There are no life-threatening causes of disease name, however complications resulting from untreated disease name is common.
  • Life-threatening causes of [symptom/manifestation] include [cause1], [cause2], and [cause3].
  • [Cause] is a life-threatening cause of [disease].

Common Causes

Common causes of [disease name] may include:

  • [Cause1]
  • [Cause2]
  • [Cause3]


OR


  • [Disease name] is caused by an infection with [pathogen name].
  • [Pathogen name] is caused by [pathogen name].

Less Common Causes

Less common causes of [disease name] include:

  • [Cause1]
  • [Cause2]
  • [Cause3]

Genetic Causes

  • [Disease name] is caused by a mutation in the [gene name] gene.

Causes by Organ System

Cardiovascular No underlying causes
Chemical/Poisoning No underlying causes
Dental No underlying causes
Dermatologic No underlying causes
Drug Side Effect No underlying causes
Ear Nose Throat No underlying causes
Endocrine No underlying causes
Environmental No underlying causes
Gastroenterologic No underlying causes
Genetic No underlying causes
Hematologic No underlying causes
Iatrogenic No underlying causes
Infectious Disease No underlying causes
Musculoskeletal/Orthopedic No underlying causes
Neurologic No underlying causes
Nutritional/Metabolic No underlying causes
Obstetric/Gynecologic No underlying causes
Oncologic No underlying causes
Ophthalmologic No underlying causes
Overdose/Toxicity No underlying causes
Psychiatric No underlying causes
Pulmonary No underlying causes
Renal/Electrolyte No underlying causes
Rheumatology/Immunology/Allergy No underlying causes
Sexual No underlying causes
Trauma No underlying causes
Urologic No underlying causes
Miscellaneous No underlying causes

Causes in Alphabetical Order

List the causes of the disease in alphabetical order:

  • Cause 1
  • Cause 2
  • Cause 3
  • Cause 4
  • Cause 5
  • Cause 6
  • Cause 7
  • Cause 8
  • Cause 9
  • Cause 10

References

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