SPR Unknown #51 -- FINAL

Erin Happ

Midwestern University

Mary Wyers

Children's Memorial Hospital

Abstract

6 week old male presented with left-sided facial swelling since birth, with rapid enlargement in more recent weeks.

Keywords

1694, Congenital sialolipoma, lipoma, parotid gland, mass


Publication Date: 2011-03-29

History

6 week old male presented with left-sided facial swelling since birth, with rapid enlargement in more recent weeks. Had previously undergone a course of antibiotics for left parotid swelling.

Findings

US guidance provided for biopsy shows a heterogeneous, echogenic mass within the region of the left parotid gland. No internal cystic or necrotic areas are seen.

MRI reveals a large T1 and T2 hyperintense mass within the region of the left parotid gland.

Diagnosis

Congenital Sialolipoma

Discussion

Congenital sialolipoma is a rare entity with only a few reported cases worldwide. Most commonly these seem to occur within the parotid gland, and secondarily within the minor salivary glands. These are thought to be a lipoma with entrapment of the glandular tissues, which distinguishes them from conventional lipomas. There tends to be a male predominance. None of the reported cases have showen histopathological atypia. Superficial parotidectomy or resection of the involved minor salivary gland is the treatment, with no reported cases of recurrence to date.

References

  1. Ramer, N. Sialolipoma: Report of two cases and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007;104:809-13.
  2. Nagao, T, et al. Sialolipoma: a report of seven cases of a new variant of salivary gland lipoma. Histopathology 2001;38:30-36.
  3. Hornigold, R, et al. Congenital sialolipoma of the parotid gland first reported case and review of the literature. Int J Pediatr Otorhinolaryngol 2005;69:426-34

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