A 26-year-old man presents with fever (38.9°C), tachycardia (102 bpm), and a painful fluctuant nodule on the posterior neck 3 days after shaving. Vital signs show normal respiratory rate and oxygen saturation. Physical examination reveals surrounding erythema and induration without lymphadenopathy. Incision and drainage yields thick yellow purulent material. Laboratory studies show leukocytosis (WBC 14,200/μL) with left shift. Histopathology of the lesion center would most likely demonstrate which of the following?
- A)Granulation tissue with type III collagen
- B)Caseous necrosis with epithelioid macrophages
- C)Collections of neutrophils with liquefactive necrosisGABARITO
- D)Acanthotic squamous epithelium with koilocytosis
- E)Fibrinoid necrosis of vessel walls
Explicação
A bacterial abscess is a localized collection of neutrophils and necrotic debris created by enzymatic tissue destruction, which is a form of liquefactive necrosis. The acute painful fluctuant lesion with purulent drainage is classic for this process. Ver explicação completa e trilha adaptativa →