Isosexual precocious puberty in a girl child is defined as thelarche before 6 years in African–Americans and 7 years in Caucasians and menarche before the age of 9 years. In 1960, Van Wyk and Grumbach first described a syndrome characterised by breast development, uterine bleeding and multicystic ovaries in the presence of long standing primary hypothyroidism. We describe an interesting case of 8 year old girl presented with the complaint of abdominal mass with history of premature menarche and breast development. She is found to have gross hypothyroidism, hyperprolactinemia, prepubertal LH levels, multicystic ovaries and delayed bone age. Thyroid replacement amazingly settled her problems bringing her to normalcy.
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