When ‘normal’ just isn’t normal

As pediatricians, we are constantly evaluating children of all ages. We make determinations of normal and abnormal all the time. But, sometimes determining normal can be a challenge because children come in all shapes, sizes, and complexions, so "normal" can appear in a variety of ways.

When it comes to the adolescent, this is an even greater challenge because the onset of puberty is so varied that children of the same age can look vastly different, and pubertal changes only widen the variety. Obesity also has impacted the appearance of normal because it makes children look older, pubertal changes more advanced, and a thorough exam more difficult. So when is it okay to say, "They will just grow out of it?" Well, the best answer is when all the serious illnesses have been considered and ruled out.

Gynecomastia is a common finding in the adolescent wellness exam; 50%-60% of adolescent males experience some degree of breast enlargement starting at the age of 10 years. This peaks at ages 13-14, then regresses over a period of 18 months (N. Engl. J. Med. 2007;357:1229-37). For approximately 25% of children, the breast tissue persists, which leads to significant anxiety and insecurities among adolescent males. Even when asked if they have concerns, few will admit to it because the thought of the evaluation is more than they can handle.

Gynecomastia is caused from the increased ratio of estrogen to androgen. Antiandrogens, drugs, and weight gain have all been implicated. But in the evaluation of increased breast tissue, normal as well as abnormal causes have to be considered.

Exogenous causes include herbal products, such as tea tree oil, or medications. The most common drugs are cimetidine, ranitidine, and omeprazole, as well spirolactone and ketoconazole. With the exception of spirolactone, these are all drugs that are used commonly for minor illness in children, but have been identified as a cause for gynecomastia. Discontinuation of these products usually resolves the issue within a few months (Pharmacotherapy 1993;13:37-45).

Obesity can cause a pseudogynecomastia as well as a true gynecomastia because aromatase enzyme increases with the increase in fat tissue, which converts testosterone to estradiol. Clinically, pseudogynecomastia can be distinguished from true gynecomastia by doing a breast exam. True gynecomastia is a concentric, rubbery firm mass greater than 0.5cm, and directly below the areola, where pseudogynecomastia has diffuse enlargement and no discernable glandular tissue.

Abnormal causes of gynecomastia are much less common, but do occur. A careful physical examination and a detailed review of systems can be very helpful in ruling in or out serious causes.

An imbalance of estrogen and testosterone can result from estrogen or testosterone going up or down. These changes can be caused by other hormonal stimulation. Human chorionic gonadotropin (HGC) is increased with germ cell tumors, which can be found in abdominal or testicular masses, resulting in secondary hypogonadism. Elevated estradiol is found with testicular tumors and adrenal tumors.

Hyperthyroidism can cause gynecomastia. Additional symptoms include palpitations, weight loss, and anxiety. Physical findings include a goiter, exophthalmoses, and tremors.

Klinefelter’s syndrome, a condition that occurs in men who have an extra X chromosome, includes gynecomastia and hypogonadism. There is a 20%-60% increased risk of breast cancer in these patients, who tend to have less facial and body hair, reduced muscle tone, and narrower shoulders and wider hips (N. Engl. J. Med. 2007;357:1229-37). Suspicion of breast cancer should increase if the mass is unilateral, nontender, and eccentric to the areola.

Although the vast majority of patients with gynecomastia will resolve spontaneously, careful evaluation and consideration of abnormal causes can lead to early diagnosis and treatment.

Experienced pediatricians know it’s never "nothing" unless all the possible "somethings" have been ruled out!

Dr. Pearce is a pediatrician in Frankfort, Ill. E-mail her at [email protected].

As pediatricians, we are constantly evaluating children of all ages. We make determinations of normal and abnormal all the time. But, sometimes determining normal can be a challenge because children come in all shapes, sizes, and complexions, so "normal" can appear in a variety of ways.

When it comes to the adolescent, this is an even greater challenge because the onset of puberty is so varied that children of the same age can look vastly different, and pubertal changes only widen the variety. Obesity also has impacted the appearance of normal because it makes children look older, pubertal changes more advanced, and a thorough exam more difficult. So when is it okay to say, "They will just grow out of it?" Well, the best answer is when all the serious illnesses have been considered and ruled out.

Gynecomastia is a common finding in the adolescent wellness exam; 50%-60% of adolescent males experience some degree of breast enlargement starting at the age of 10 years. This peaks at ages 13-14, then regresses over a period of 18 months (N. Engl. J. Med. 2007;357:1229-37). For approximately 25% of children, the breast tissue persists, which leads to significant anxiety and insecurities among adolescent males. Even when asked if they have concerns, few will admit to it because the thought of the evaluation is more than they can handle.

Gynecomastia is caused from the increased ratio of estrogen to androgen. Antiandrogens, drugs, and weight gain have all been implicated. But in the evaluation of increased breast tissue, normal as well as abnormal causes have to be considered.

Exogenous causes include herbal products, such as tea tree oil, or medications. The most common drugs are cimetidine, ranitidine, and omeprazole, as well spirolactone and ketoconazole. With the exception of spirolactone, these are all drugs that are used commonly for minor illness in children, but have been identified as a cause for gynecomastia. Discontinuation of these products usually resolves the issue within a few months (Pharmacotherapy 1993;13:37-45).

Obesity can cause a pseudogynecomastia as well as a true gynecomastia because aromatase enzyme increases with the increase in fat tissue, which converts testosterone to estradiol. Clinically, pseudogynecomastia can be distinguished from true gynecomastia by doing a breast exam. True gynecomastia is a concentric, rubbery firm mass greater than 0.5cm, and directly below the areola, where pseudogynecomastia has diffuse enlargement and no discernable glandular tissue.

Abnormal causes of gynecomastia are much less common, but do occur. A careful physical examination and a detailed review of systems can be very helpful in ruling in or out serious causes.

An imbalance of estrogen and testosterone can result from estrogen or testosterone going up or down. These changes can be caused by other hormonal stimulation. Human chorionic gonadotropin (HGC) is increased with germ cell tumors, which can be found in abdominal or testicular masses, resulting in secondary hypogonadism. Elevated estradiol is found with testicular tumors and adrenal tumors.

Hyperthyroidism can cause gynecomastia. Additional symptoms include palpitations, weight loss, and anxiety. Physical findings include a goiter, exophthalmoses, and tremors.

Klinefelter’s syndrome, a condition that occurs in men who have an extra X chromosome, includes gynecomastia and hypogonadism. There is a 20%-60% increased risk of breast cancer in these patients, who tend to have less facial and body hair, reduced muscle tone, and narrower shoulders and wider hips (N. Engl. J. Med. 2007;357:1229-37). Suspicion of breast cancer should increase if the mass is unilateral, nontender, and eccentric to the areola.

Although the vast majority of patients with gynecomastia will resolve spontaneously, careful evaluation and consideration of abnormal causes can lead to early diagnosis and treatment.

Experienced pediatricians know it’s never "nothing" unless all the possible "somethings" have been ruled out!

Dr. Pearce is a pediatrician in Frankfort, Ill. E-mail her at [email protected].

As pediatricians, we are constantly evaluating children of all ages. We make determinations of normal and abnormal all the time. But, sometimes determining normal can be a challenge because children come in all shapes, sizes, and complexions, so "normal" can appear in a variety of ways.

When it comes to the adolescent, this is an even greater challenge because the onset of puberty is so varied that children of the same age can look vastly different, and pubertal changes only widen the variety. Obesity also has impacted the appearance of normal because it makes children look older, pubertal changes more advanced, and a thorough exam more difficult. So when is it okay to say, "They will just grow out of it?" Well, the best answer is when all the serious illnesses have been considered and ruled out.

Gynecomastia is a common finding in the adolescent wellness exam; 50%-60% of adolescent males experience some degree of breast enlargement starting at the age of 10 years. This peaks at ages 13-14, then regresses over a period of 18 months (N. Engl. J. Med. 2007;357:1229-37). For approximately 25% of children, the breast tissue persists, which leads to significant anxiety and insecurities among adolescent males. Even when asked if they have concerns, few will admit to it because the thought of the evaluation is more than they can handle.

Gynecomastia is caused from the increased ratio of estrogen to androgen. Antiandrogens, drugs, and weight gain have all been implicated. But in the evaluation of increased breast tissue, normal as well as abnormal causes have to be considered.

Exogenous causes include herbal products, such as tea tree oil, or medications. The most common drugs are cimetidine, ranitidine, and omeprazole, as well spirolactone and ketoconazole. With the exception of spirolactone, these are all drugs that are used commonly for minor illness in children, but have been identified as a cause for gynecomastia. Discontinuation of these products usually resolves the issue within a few months (Pharmacotherapy 1993;13:37-45).

Obesity can cause a pseudogynecomastia as well as a true gynecomastia because aromatase enzyme increases with the increase in fat tissue, which converts testosterone to estradiol. Clinically, pseudogynecomastia can be distinguished from true gynecomastia by doing a breast exam. True gynecomastia is a concentric, rubbery firm mass greater than 0.5cm, and directly below the areola, where pseudogynecomastia has diffuse enlargement and no discernable glandular tissue.

Abnormal causes of gynecomastia are much less common, but do occur. A careful physical examination and a detailed review of systems can be very helpful in ruling in or out serious causes.

An imbalance of estrogen and testosterone can result from estrogen or testosterone going up or down. These changes can be caused by other hormonal stimulation. Human chorionic gonadotropin (HGC) is increased with germ cell tumors, which can be found in abdominal or testicular masses, resulting in secondary hypogonadism. Elevated estradiol is found with testicular tumors and adrenal tumors.

Hyperthyroidism can cause gynecomastia. Additional symptoms include palpitations, weight loss, and anxiety. Physical findings include a goiter, exophthalmoses, and tremors.

Klinefelter’s syndrome, a condition that occurs in men who have an extra X chromosome, includes gynecomastia and hypogonadism. There is a 20%-60% increased risk of breast cancer in these patients, who tend to have less facial and body hair, reduced muscle tone, and narrower shoulders and wider hips (N. Engl. J. Med. 2007;357:1229-37). Suspicion of breast cancer should increase if the mass is unilateral, nontender, and eccentric to the areola.

Although the vast majority of patients with gynecomastia will resolve spontaneously, careful evaluation and consideration of abnormal causes can lead to early diagnosis and treatment.

Experienced pediatricians know it’s never "nothing" unless all the possible "somethings" have been ruled out!

Dr. Pearce is a pediatrician in Frankfort, Ill. E-mail her at [email protected].