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Peer-reviewedCC BY 4.0Cureus

Unilateral Sacroiliac Hemiagenesis in a Young Woman Presenting With Chronic Mechanical Low Back and Buttock Pain: A Case Report

  • Manal El Morjani1,2
  • Ali Rouffa Houmed1,2
  • Zineb Baba1
  • Ahmed Mougui1,2
  • Ahlam Belkhou1,2
  1. 1Rheumatology, Arrazi Hospital, Mohammed VI University Hospital Center, Marrakech, MAR
  2. 2Rheumatology, Faculty of Medicine and Pharmacy of Marrakech, Cadi Ayyad University, Marrakech, MAR
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Abstract

Sacral agenesis is a rare congenital malformation belonging to the spectrum of caudal regression syndrome, whose clinical manifestations are highly variable and depend on the phenotype of the disease.

We report the case of a young woman who presented with chronic mechanical low back and buttock pain. Clinical examination revealed no significant abnormalities. Imaging studies, however, showed right-sided sacroiliac hemiagenesis associated with compensatory scoliosis. After surgical treatment was deemed unnecessary, the patient was managed conservatively with analgesics, muscle relaxants, and an individualized rehabilitation program. Her symptoms gradually improved, with a favorable clinical outcome.

This case represents a mildly symptomatic form of sacral agenesis and emphasizes the important role of imaging in identifying these rare congenital abnormalities, which may otherwise remain unrecognized.

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Cite

BibTeXRIS
BibTeX
@article{morjani2026unilateral,
  title = {{Unilateral Sacroiliac Hemiagenesis in a Young Woman Presenting With Chronic Mechanical Low Back and Buttock Pain: A Case Report}},
  author = {Manal El Morjani and Ali Rouffa Houmed and Zineb Baba and Ahmed Mougui and Ahlam Belkhou},
  journal = {Cureus},
  year = {2026},
  month = oct,
  doi = {10.7759/cureus.117462},
  url = {https://doi.org/10.7759/cureus.117462},
  note = {CC BY 4.0},
}
RIS
TY  - JOUR
TI  - Unilateral Sacroiliac Hemiagenesis in a Young Woman Presenting With Chronic Mechanical Low Back and Buttock Pain: A Case Report
AU  - Manal El Morjani
AU  - Ali Rouffa Houmed
AU  - Zineb Baba
AU  - Ahmed Mougui
AU  - Ahlam Belkhou
PY  - 2026
DA  - 2026/10/05
JO  - Cureus
DO  - 10.7759/cureus.117462
UR  - https://doi.org/10.7759/cureus.117462
AB  - Sacral agenesis is a rare congenital malformation belonging to the spectrum of caudal regression syndrome, whose clinical manifestations are highly variable and depend on the phenotype of the disease.  We report the case of a young woman who presented with chronic mechanical low back and buttock pain. Clinical examination revealed no significant abnormalities. Imaging studies, however, showed right-sided sacroiliac hemiagenesis associated with compensatory scoliosis. After surgical treatment was deemed unnecessary, the patient was managed conservatively with analgesics, muscle relaxants, and an individualized rehabilitation program. Her symptoms gradually improved, with a favorable clinical outcome.  This case represents a mildly symptomatic form of sacral agenesis and emphasizes the important role of imaging in identifying these rare congenital abnormalities, which may otherwise remain unrecognized.
SN  - 2168-8184
ER  -