Subcutaneous sarcoidosis is a rare, cutaneous expression of systemic sarcoidosis. It is observed as asymptomatic firm, nodules covered by normal-appearing skin, principally on the extremities, which show the typical histopathology appearance of non-caseating granulomas localized to the subcutaneous tissue. It may be associated with the early benign, hilar lymphadenopathy of sarcoidosis or with the later stages of progressive sarcoidosis. Here, we report a case of subcutaneous sarcoidosis, which presented as an asymptomatic, forehead swelling with involvement of skull bone and lung. We report this case since subcutaneous sarcoidosis on the face with involvement of skull bone is a rarity.

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A 7-month-old boy infant presented with global developmental delay and hypotonia of the trunk and limbs since birth. No history of seizures, feeding difficulty, or recurrent aspiration of feeds was present.He was the firstborn infant to second-degree consanguineous parents born at term weighing 2500 g. He was immunized for age. On examination, no signs of malnutrition were observed. He had generalized pigmentary dilution, doughy skin, and full cheeks; sparse, short, thin, kinky, and brittle hair (Figure 1); and hypotonia. Examination of the hair under light microscopy was performed (Figures 2 and 3).