Tuesday, 1 April 2025

P NN BRST ABSCESS

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Neonatal Breast Abscess – Summary & Management

1. Overview

  • A localized infection in the breast tissue of neonates, usually caused by Staphylococcus aureus (often MRSA).

  • Most commonly affects full-term neonates within the first 2-4 weeks of life.

  • Can be unilateral or rarely bilateral.


2. Clinical Features

Swelling, erythema, and warmth over the affected breast
Tender, fluctuant mass (suggestive of abscess formation)
Fever (rare) – Most cases are afebrile
Purulent nipple discharge (in some cases)


3. Differential Diagnosis

  • Neonatal mastitis (infection without abscess formation)

  • Physiologic neonatal breast hypertrophy (due to maternal hormones)

  • Galactocele (benign milk-filled cyst)


4. Investigations

Clinical diagnosis – Based on examination
Ultrasound (if needed) – To confirm abscess, differentiate from galactocele
Aspiration for culture – If drainage is performed
CBC, CRP (if systemic signs present) – To assess inflammation


5. Management Approach

A. Antibiotic Therapy (for mastitis or small abscess <1cm)

  • Empirical oral antibiotics targeting Staph aureus (including MRSA):

    • Cephalexin (for MSSA) OR

    • Clindamycin or Trimethoprim-Sulfamethoxazole (TMP-SMX) (for MRSA risk)

  • Duration: 7–10 days

B. Drainage (for larger abscesses >1cm or worsening symptoms)

  • Needle aspiration preferred over incision and drainage (I&D)

  • Repeat aspiration if abscess persists

  • Surgical drainage if aspiration fails or large abscess with necrosis


6. Prognosis & Follow-Up

  • Most cases resolve with early antibiotics and/or drainage.

  • Follow-up in 2–3 days to assess response.

  • Avoid excessive manipulation/massage, as it can worsen the infection.

Would you like a flowchart for management?

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