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October 1987

A Newborn With a Solitary Nodule on the Scalp

Author Affiliations

Hospital San Pablo, Barcelona, Spain

Arch Dermatol. 1987;123(10):1395-1396. doi:10.1001/archderm.1987.01660340168043

REPORT OF A CASE  A 2-month-old boy had been born with a solitary nodule on his right occipitotemporal region. He was the full-term product of a 23-year-old gravida 2, para 2 woman; the pregnancy had been complicated by mild hypertension during the last eight weeks.Physical examination revealed a healthy boy with a 1.8 × 1.7-cm firm, erythematous, rubbery, slightly umbilicated nodule on the right occipitotemporal region, not attached to the underlying structures (Fig 1). A CT scan showed a normal skull and a chest roentgenogram was normal. No other abnormalities were noted. The lesion was surgically excised. Representative histologic sections are shown in Figs 2 through 4.What is your diagnosis?

DIAGNOSIS:  Infantile myofibromatosis (solitary type).

HISTOPATHOLOGIC FINDINGS  In the dermis, the tumor was composed of bundles of spindle-shaped cells with oval or elongated nucleiand eosinophilic cytoplasm having some reminis

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