Pediatric Adrenal Carcinoma
- Author: Lawrence C Wolfe, MD; Chief Editor: Robert J Arceci, MD, PhD more...
Background
Adrenocortical carcinoma is a rare tumor in the pediatric population (0-21 y). In a study of the incidence of functioning adrenal tumors in patients aged 4-20 years, 59 were identified at a single referral institution over a period of years. Only 2 of these patients had adrenocortical carcinoma. The authors underreported the overall incidence of adrenocortical carcinoma because 20-40% of patients present with a palpable mass and no symptoms of adrenal hormone hypersecretion. Because of the relative rarity of these tumors, little is known about their cause and the influence of genetic factors, although adrenocortical carcinomas are associated with numerous constitutional syndromes, including Li-Fraumeni syndrome, Beckwith-Wiedemann syndrome, Carney complex, multiple endocrine neoplasia 1, and hemihypertrophy syndrome.
Data have suggested an increased incidence in female individuals, especially at age 0-3 years or after age 13 years. No racial predominance for this diagnosis has been established; however, in southern Brazil, the incidence of adrenal tumors is 10-15 times that of the general population. This incidence is associated with a mutation in the P53 gene. Based on data from the International Pediatric Adrenocortical Tumor Registry, the median age when children develop adrenal carcinomas is 3.2 years; 60% are younger than 4 years, and 14% are older than 13 years.[1]
Epidemiology
Mortality/Morbidity
The prognosis of patients with adrenocortical carcinoma is always guarded. Cures were reported in patients who underwent complete removal of a small (< 9 cm, < 200 g) encapsulated tumors. Reports of remission of metastatic disease are only anecdotal. Aggressive surgical and medical treatments have prolonged mean survival times by approximately 18 months and, occasionally, by longer than 48 months. Studies of aggressive surgical and early adjuvant therapy are limited by the rarity of this illness in childhood.
Race
No racial predilection has been identified.
Sex
As data accumulate, especially in international registries, the incidence of adrenal tumors in female individuals has risen higher than previously thought.
Age
Adrenocortical carcinoma is a rare tumor among individuals aged 0-21 years.
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