Spider Bites Might Present as Cellulitis Like in Early Cases and Pyoderma Gangrenosum Like in Late Cases

Results: On careful examination, the lesional bites could be divided into early and late presentations. Regarding the early presentation in six cases were observed and all had cellulitis like picture with small black necrosis at the center while the late cases showed gangrenous well defined ulcer that simulate pyoderma gangrenosum in (18) patients and these ulcers were characteristically polygonal in shapes at their margins. The sites of these bites were as follow: 14 (58.3%) thighs including groins, 3 (12.5%) legs, 3 (12.5%) fingers, 3 (12.5%) male genitalia and one (4.16%) was left axilla. Medical management including topical antiseptic together with topical and oral antibiotic cover with oral antihistamine and oral prednisolone. The duration of therapy depending on the size of ulcer but generally it took from two weeks to two months. No surgical debridement was carried out.