Atypical subcutaneous nodule-type paragonimiasis in 3 children: case series - Scorecard - MDSpire

Atypical subcutaneous nodule-type paragonimiasis in 3 children: case series

  • By

  • Zhaokun Guo

  • Ying Jiang

  • Keheng Deng

  • Jun Zhou

  • Pan Jiao

  • Wenxiang Zhu

  • Zhongjing Zhang

  • Xiangyou Zhao

  • July 16, 2026

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Clinical Scorecard: Uncommon Subcutaneous Nodule Presentation of Paragonimiasis in Three Pediatric Cases: A Case Series Analysis

At a Glance

CategoryDetail
ConditionParagonimiasis
Key MechanismsFood-borne zoonotic parasitic disease caused by Paragonimus species, primarily transmitted through consumption of raw or undercooked freshwater crabs and crayfish.
Target PopulationPediatric patients with atypical subcutaneous nodule-type paragonimiasis.
Care SettingClinical analysis and treatment in a pediatric department.

Key Highlights

  • All patients presented with elevated peripheral blood eosinophils and positive Paragonimus antibodies.
  • Oral praziquantel was effective in treatment, with surgery as an adjuvant option.
  • Subcutaneous nodule-type paragonimiasis can be misdiagnosed due to non-specific clinical features.

Guideline-Based Recommendations

Diagnosis

  • Take detailed epidemiological history.
  • Elevated eosinophils and positive Paragonimus antibodies are helpful for diagnosis.

Management

  • Administer praziquantel at 25 mg/kg per dose, three times daily for 3 consecutive days.

Monitoring & Follow-up

  • Monitor clinical symptoms and eosinophil counts for resolution.

Risks

  • High clinical misdiagnosis rate due to non-specific symptoms.

Patient & Prescribing Data

Three pediatric patients aged 5 to 10 years.

All patients completed three courses of praziquantel therapy with clinical cure and no recurrence during follow-up.

Clinical Best Practices

  • Perform fine-needle aspiration cytology or surgical resection for definitive diagnosis.
  • Conduct multidisciplinary discussions for complex cases.

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