Intracranial embryonal carcinoma and precocious puberty
1Department of Paediatrics, University of Hong Kong.
Insights
A 7.5-year-old boy with precocious puberty and neurological issues had a midline brain tumor. Elevated beta-human chorionic gonadotropin (beta-hCG) and alpha-fetoprotein (alpha-FP) suggested intracranial embryonal carcinoma.
Area of Science:
- Pediatric Endocrinology
- Pediatric Neurology
- Pediatric Oncology
Background:
- Precocious puberty in children can be caused by various factors, including central nervous system lesions.
- Midline brain tumors, particularly those in the suprasellar region, can disrupt hormonal regulation, leading to early sexual development.
- Neurological dysfunction may accompany such tumors, indicating potential mass effect or infiltration.
Observation:
- A 7.5-year-old boy presented with precocious puberty and neurological symptoms.
- A CT brain scan revealed a suprasellar mass lesion.
- Cerebrospinal fluid and serum analysis showed elevated levels of beta-human chorionic gonadotropin (beta-hCG) and alpha-fetoprotein (alpha-FP).
Findings:
- The elevated tumor markers beta-hCG and alpha-FP in both cerebrospinal fluid and serum were highly suggestive of an intracranial embryonal carcinoma.
- While histological confirmation was not obtained, the marker profile strongly supported this diagnosis.
- The findings highlight a potential link between specific germ cell tumors and precocious puberty.
Implications:
- Beta-hCG and alpha-FP levels should be routinely assessed in children presenting with precocious puberty and midline brain tumors.
- Early identification of intracranial embryonal carcinoma through tumor marker analysis can facilitate timely treatment.
- This case underscores the importance of a multidisciplinary approach in diagnosing and managing complex pediatric neurological and endocrine disorders.
Abstract:
A boy aged 7.5 years presented with precocious onset of secondary sexual characteristics and symptoms and signs of neurological dysfunction. A CT brain scan demonstrated a suprasellar mass lesion. The elevated beta-hCG and alpha-fetoprotein concentrations in cerebrospinal fluid and in serum were consistent with a diagnosis of intracranial embryonal carcinoma, although histological diagnosis was not available. The tumour markers beta-hCG and alpha-FP should be looked for in all children with precocious puberty presenting with midline brain tumours.
Related Concept Videos
02:23Abnormal Proliferation
01:20The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...
01:20The Retinoblastoma Gene
The first-ever tumor suppressor gene called Rb was identified in retinoblastoma - a rare eye tumor in children. In inherited forms of the disease, a child inherits one defective copy of the Rb gene, which predisposes them to retinoblastoma. However,...