A 61-year-old never-smoker woman presents with progressive cough and 8-pound weight loss over 3 months. Vital signs: BP 128/76, HR 92, RR 18, Temp 98.6°F, SpO2 98% on room air. CT chest reveals a peripheral 2.2-cm mass adjacent to left upper lobe scarring. Transbronchial biopsy demonstrates glandular differentiation with abundant mucin production. She denies hemoptysis and fever. She takes only atorvastatin. Which diagnosis best explains these findings?
- A)Squamous cell carcinoma
- B)Small cell carcinoma
- C)AdenocarcinomaGABARITO
- D)Large cell carcinoma
- E)Mesothelioma
Explicação
Adenocarcinoma is the most common lung cancer overall and is especially common in nonsmokers and women. It usually arises peripherally and may be associated with prior areas of fibrosis or scar. Histology with gland formation and mucin production is classic. Ver explicação completa e trilha adaptativa →