A patient showing brownish pigmentation and with normal laboratory findings may be suffering from______________?

Correct answer: C. Neuro fibromatosis

A. Addison's disease
B. fibrous dysplasia
C. Neuro fibromatosis
D. None of the above

Explanation

Neurofibromatosis may produce café-au-lait macules and other brownish pigmentation despite normal routine laboratory findings. Addison disease also causes pigmentation, but it is associated with adrenal dysfunction and abnormal investigations.

Submitted by a TestUstad contributor and published by the TestUstad editorial teamLast updated 18 September 2026

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