Atypical_adenomatous_hyperplasia

Atypical adenomatous hyperplasia

Atypical adenomatous hyperplasia

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Atypical adenomatous hyperplasia is a subtype of pneumocytic hyperplasia in the lung. It can be a precursor lesion of in situ adenocarcinoma of the lung (bronchioloalveolar carcinoma). In prostate tissue biopsy, it can be confused for adenocarcinoma of the prostate. The needle biopsy rate is less than 1%.

Pathology

Morphological differential diagnosis

Variants

  • multiple atypical adenomatous hyperplasia[2]
  • disseminated AAH[3]

Histopathological images

See also

References

  1. [1]
    Kobashi, Y; Sugiu, T; Mouri, K; Irei, T; Nakata, M; Oka, M (2008). "Multifocal micronodular pneumocyte hyperplasia associated with tuberous sclerosis: Differentiation from multiple atypical adenomatous hyperplasia". Japanese Journal of Clinical Oncology. 38 (6): 451–4. doi:10.1093/jjco/hyn042. PMID 18535095.
  2. [2]
    Kobashi, Y; Sugiu, T; Mouri, K; Irei, T; Nakata, M; Oka, M (2008). "Multifocal micronodular pneumocyte hyperplasia associated with tuberous sclerosis: Differentiation from multiple atypical adenomatous hyperplasia". Japanese Journal of Clinical Oncology. 38 (6): 451–4. doi:10.1093/jjco/hyn042. PMID 18535095.
  3. [3]
    Pastorino, U; Calabrò, E; Tamborini, E; Marchianò, A; Orsenigo, M; Fabbri, A; Sozzi, G; Novello, S; De Marinis, F (2009). "Prolonged remission of disseminated atypical adenomatous hyperplasia under gefitinib". Journal of Thoracic Oncology. 4 (2): 266–7. doi:10.1097/JTO.0b013e3181952930. hdl:2318/84918. PMID 19179908. S2CID 35747902.


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