16 October 2020
: Case report 
An Uncommon Lung Neoplasm in a Young Patient: Diagnostic Challenges
Challenging differential diagnosis, Rare disease, Educational Purpose (only if useful for a systematic review or synthesis)
Felipe Saceanu Leser12ABDEF*, Lucas Dalsenter Romano23ABDEF, Kauê Ruan de Resende2ABDEF, José Roberto Lapa e Silva24ABEGDOI: 10.12659/AJCR.926038
Am J Case Rep 2020; 21:e926038
Figure 4. Histological aspect of the lesion biopsy showing infiltrating nests with a carcinomatous characteristic with poorly differentiated glandular structures in the lower right corner (A) Immunohistochemistry with TTF-1 labeling showing diffuse positivity in neoplastic cells (B) and p63 labeling with nuclear positivity in about 10% of neoplastic cells (C), indicating immunophenotype of double glandular and squamous differentiation, compatible with a diagnosis of ASC.