# Spider angioma at the injection site of the meningitis vaccine

## TL;DR

A patient developed a spider angioma at the meningitis vaccine injection site, a previously unreported long-term adverse effect.

## Contribution

This is the first reported case of spider angioma as a long-term adverse effect of the meningitis vaccine.

## Key findings

- A patient developed spider angioma at the meningitis vaccine injection site.
- The lesion was successfully treated with electrocautery and resolved within one week.
- This adverse effect has not been previously documented in medical literature.

## Abstract

Spider angioma is a cutaneous nevus caused by a vascular abnormality, characterized by a central red area with radiating reddish, web-like extensions. It is typically associated with liver cirrhosis, hyperestrogenism, and alcohol consumption. In this case report, we present a unique instance of a patient who developed spider angioma at the injection site of the meningitis vaccine as a long-term adverse effect. The lesion was treated with electrocautery and diminished within one week of treatment. This case highlights the potential for spider angioma to develop as a long-term adverse effect of the meningitis vaccine, a possibility that has not been previously reported. Further research is required to understand the underlying mechanisms and identify potential risk factors for this rare adverse effect.