The anti-clockwise spiralization of the linea nigra sign - PMC
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7607916/
WEBOct 29, 2020 · The analysis of supra- and infraumbilical linea nigra in puerperal women showed a predominance of what the authors named “anti-clockwise spiralization of the linea nigra sign”. Keywords: Linea nigra , Hyperpigmentation/diagnosis, Skin/pathology, Skin pigmentation, Physiological changes in pregnancy
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