Diagnosis: Spider bite
Description: Painful necrotic ulcers.
Morphology: Ulcer
Site: Thigh
Sex: M
Age: 32
Type: Clinical
Submitted By: Nameer Al-Sudany
Differential DiagnosisHistory:
Two painful superficial ulcers with necrotic centers and red borders involved the lower abdomen and upper thigh of two days duration. The patient gave history of a spider sting one day before the appearance of the lesions.