June 1997

Multiple Papules on the Elbows

Author Affiliations

University of Arizona, Tucson

Arch Dermatol. 1997;133(6):780. doi:10.1001/archderm.1997.03890420123019

REPORT OF A CASE  A 2-month-old white boy presented with multiple red bumps on his elbows. His mother did not feel that they bothered him in any way. He had been carried to term during a pregnancy without complications. His family history was noncontributory.Physical examination revealed a healthy boy with multiple, small (2-4 mm), firm, erythematous papules on the extensor surfaces of both elbows (Figure 1 and Figure 2). Laboratory values were all within normal limits. No other physical or developmental abnormalities were noted. A biopsy specimen was obtained from the patient's right elbow (Figure 3).What is your diagnosis?Multiple Papules on the Elbows

DIAGNOSIS:  Congenital osteoma cutis.

HISTOPATHOLOGIC FINDINGS  Sections of the biopsy specimen showed an accumulation of calcified woven bone in the deep dermis and subcutis.

DISCUSSION  Osteoma cutis is a rare, benign skin disorder that is characterized by the formation of bone in the

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