A Case Report: Treatment, follow-up, and literature review of type A insulin resistance syndrome caused by a De Novo INSR c.3328G>C mutation - Scorecard - MDSpire

A Case Report: Treatment, follow-up, and literature review of type A insulin resistance syndrome caused by a De Novo INSR c.3328G>C mutation

  • By

  • Chunmin Ji

  • Xiaojun Zheng

  • Quanxing Wang

  • Zhongyun Chen

  • May 26, 2026

  • 0 min

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Clinical Scorecard: A Case Study: Management, Follow-Up, and Review of Literature on Type A Insulin Resistance Syndrome Due to a Novel INSR c.3328G>C Mutation

At a Glance

CategoryDetail
Condition
Key MechanismsCaused by mutations in the insulin receptor (INSR) gene, leading to severe insulin resistance.
Target Population
Care Setting

Key Highlights

  • Characterized by severe insulin resistance, hyperandrogenism, and acanthosis nigricans.
  • Diagnosis relies on clinical evaluation and genetic confirmation.
  • Case presented a novel de novo INSR mutation classified as 'likely pathogenic'.

Guideline-Based Recommendations

Diagnosis

  • Clinical evaluation and genetic testing for INSR mutations.

Management

  • Individualized strategies including pharmacological therapy and medical nutrition.

Monitoring & Follow-up

  • Regular assessment of insulin levels and metabolic health.

Risks

  • Potential for precocious puberty and increased risk of metabolic and endocrine complications.

Patient & Prescribing Data

Metformin hydrochloride 0.5g tid and dietary adjustments.

Clinical Best Practices

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