eISSN: 2084-9869
ISSN: 1233-9687
Polish Journal of Pathology
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SCImago Journal & Country Rank
4/2010
vol. 61
 
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Subcutaneous fat necrosis of the newborn – a case report and review of literature

Andrzej Marszałek
,
Joanna Maciejewska
,
Monika Bowszyc-Dmochowska
,
Andrzej Prokurat

Online publish date: 2011/01/13
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Subcutaneous fat necrosis of the newborn is a rare, benign, self-limited hypodermatitis that affects full-term or postmature newborn with history of perinatal stress such as hypoxia, hypothermia or local pressure trauma. The main lesions appear as subucateneous nodules in adipose tissue.

We present a case of a three-week old newborn born in spontaneous delivery in the 40Hbd in poor general condition (inborn pneumonia and perinatal hypoxia) which was admitted to the hospital due to subcutaneous tissue induration and skin discoloration above the lesion. The skin ultrasound examination showed foci of homogeneously hyperechogenic subcutaneous tissue thickened up to 6 mm. Further examinations did not reveal any abnormalities besides the slightly increased calcium concentration (1,69 mmol/l with normal range of 1,2 mmo/l). In order to diagnose the condition a tissue sample was collected. The histological examination revealed panniculitis with infiltration with mononuclear cells, e.g. macrophages as well as multinucleated giant cells with radial arrangement of needles-shaped clefts in cytoplasm. After treatment with corticosteroids resolution of all the lesions was noted.
keywords:

subcutaneous fat necrosis, perinatal stress, hypodermatitis

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