Congenital Midline Spinal Hamartoma in a 5-Month-Old Infant

BACKGROUND

Congenital midline spinal hamartoma is a very rare tumor-like proliferation that mostly occurs during childhood. It consists of mature, well-differentiated ectodermal and mesodermal elements that present in an abnormal location and are mostly associated with neurofibromatosis type 1 and spinal dysraphism.

CASE DESCRIPTION

A 5-month-old male patient presented with complaint of a bump over the lower back. The bump was already present since birth with the size of approximately 3 cm in diameter and slow growth. There were no other associated symptoms besides the bump on the lower back. In the physical examination, we found a subcutaneous mass with associated skin dimple located on the midline of the lower back. Computed tomography scan of the spine showed a mass that arose from inside the dura and a closed spinal dysraphism from L3 vertebra to the sacrum. A subtotal resection was performed, and the histopathology feature showed fat cells, cartilage, skeletal muscle fibers, nerve, and blood vessel. After 6 months follow-up, no symptoms or neurologic deficit were present, and no further growth was shown on the latest computed tomography scan.

CONCLUSIONS

Congenital midline spinal hamartoma is very rare and seldom addressed. Most patients present with a cosmetic defect and rarely with associated symptoms. Tissue biopsy is still the best modality to definitively diagnose hamartoma and to exclude other diagnoses. Surgical excision of the tumor is still the mainstay treatment, especially for patients who are not neurologically intact and to correct the cosmetic skin defect.

Extradural Spinal Hamartoma Causing Spinal Cord Compression in an Adolescent Male: An Extremely Rare Case and Review of the Literature

Spinal hamartoma is an extremely rare, benign spinal lesion occurring in children. It may cause spinal cord compression and subsequent neurological deficits. On reviewing the literature, of a total of 20 cases, only 2 cases are reported in an adolescent age group. It may be a pure spinal hamartoma, or sometimes it may be associated with either neurofibromatosis type I or spinal dysraphism. MRI is the investigation of choice. Surgical excision of the lesion and the decompression of the cord are the definitive treatment. Here, we pre-sent a similar case in a 16-year-old adolescent male, its diagnosis and further management.

Spinal intramedullary hamartoma with acute presentation in a 13-month old infant: case report

True hamartomas of the spinal cord are very rare, and although several have been reported in the literature, there are few detailed radiological and pathological descriptions of the condition. There is also considerable overlap with other entities, the most common being spinal cord teratomas. The authors report the case of a 13-month-old child with a supragluteal sacral dimple who presented with acute neurological deterioration. MRI of the spine revealed a big intramedullary lesion with heterogeneous signal intensity. A near-total resection was performed, and histopathological examination demonstrated findings consistent with a spinal cord hamartoma. The authors believe that careful preoperative evaluation and rigorous pathological examination are mandatory to establish diagnosis and direct further management of cases in which such a lesion is suspected.