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[Splenic nodules and sickle cell anemia].

S Jouini1, S Sehili, A Mokrani

  • 1Département d'Imagerie Médicale, King Khalid Military City Hospital, P.O. Box 10018, Hafar Al Batin 31991 Arabie Saoudite.

Journal De Radiologie
|March 16, 2002
PubMed
Summary

Sickle cell anemia patients can develop intra-splenic benign nodules, which are islands of normal tissue within the spleen. Imaging studies like ultrasound, CT, and MRI can identify these nodules, which show no significant change over time.

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Area of Science:

  • Radiology
  • Hematology
  • Pathology

Background:

  • Sickle cell anemia is a genetic blood disorder characterized by abnormal hemoglobin.
  • Splenic complications, including ferro-calcinosis, are common in sickle cell anemia patients.
  • Intra-splenic findings can be challenging to differentiate from other splenic pathologies.

Purpose of the Study:

  • To describe the imaging characteristics of intra-splenic benign nodules in patients with sickle cell anemia.
  • To differentiate these nodules from other splenic lesions.
  • To report the stability of these nodules over time.

Main Methods:

  • Retrospective analysis of imaging studies (ultrasound, CT, MRI) in 4 sickle cell anemia patients.
  • Comparison of initial imaging findings with follow-up studies (ultrasound, CT) after 6-12 months.

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  • Evaluation of nodule characteristics including size, shape, echogenicity, density, and signal intensity.

    • Main Results:

    • Ultrasound revealed multiple, well-defined, hypoechoic nodules within a hyperechoic spleen.
    • CT demonstrated homogenous, hypodense nodules relative to the spleen.
    • MRI showed relatively hyperintense nodules within a low-signal-intensity spleen; no significant changes were noted on follow-up imaging.

    Conclusions:

    • Intra-splenic benign nodules, representing preserved splenic tissue, can be identified in sickle cell anemia patients.
    • These nodules are a distinct imaging finding and should be considered in the differential diagnosis of splenic lesions in this population.
    • The benign nature and stability of these nodules are supported by follow-up imaging.