Pathology Outlines - Pulmonary hamartoma 54 year old man presenting with hemoptysis and CT scan identified lung nodule (Respirol Case Rep 2020;8:e00553) 59 year old woman with pulmonary hamartoma presenting with unusual radiographic features (Respir Med Case Rep 2018;25:133) 59 year old woman with incidental hamartoma and tibial enchondroma (BMJ Case Rep 2019;12:e229670)
Pathology Outlines - Lung Lung (nontumor tumor) Page views in 2025 to date (this page and chapter topics): 709,801
Pathology Outlines - WHO classification WHO classification of tumors of the lung (Travis: WHO Classification of Tumours of the Lung, Pleura, Thymus and Heart, 4th Edition, 2015) Epithelial tumors ICD-O codes; Adenocarcinoma 8140 3 Lepidic adenocarcinoma 8250 3; Acinar adenocarcinoma 8551 3; Papillary adenocarcinoma 8260 3; Micropapillary adenocarcinoma 8265 3; Solid adenocarcinoma
Pathology Outlines - Respiratory epithelial adenomatoid hamartoma 17 year old boy with respiratory epithelial adenomatoid hamartoma (Ear Nose Throat J 2022 May 9 [Epub ahead of print]) 62 year old man with respiratory epithelial adenomatoid hamartoma of the maxillary sinus (Acta Otorhinolaryngol Ital 2006;26:225) 75 year old man with bilateral nasal mass (Proc (Bayl Univ Med Cent) 2017;30:221)
Pathology Outlines - Angiomyomatous hamartoma Angiomyomatous hamartoma may be found incidentally or may present with pain or localized edema It can be present in any location but has a predilection for the inguinal and femoral lymph nodes Answer C is incorrect because this entity is a benign hamartoma that consists of proliferation of smooth muscles and blood vessels
Pathology Outlines - Benign metastasizing leiomyoma Lung, most common site (BMC Pulm Med 2020;20:292, Case Rep Oncol Med 2014;2014:842801) Other reported sites of metastasis include heart, breasts, bone, soft tissue of pelvis, liver, esophagus, lymph nodes, trachea, appendix, central nervous system, skin and scars
Pathology Outlines - Hamartoma Immunohistochemical staining was performed on block [X] CD8 stains the endothelium of normal splenic sinuses in the normal splenic tissue as well as the disorganized sinuses in the hamartoma CD20 and CD3 staining revealed a lack of B cells and rare T cells, respectively, within the hamartoma
Pathology Outlines - Benign The World Health Organization (WHO) Reporting System for Lung Cytopathology is the recommended system for reporting results (Acta Cytol 2023;67:80) Per the reporting system, benign includes benign bronchial elements, inflammatory or infectious processes (e g , granulomatous inflammation) or a specific benign tumor (e g , hamartoma)
Pathology Outlines - Ectopic meningioma Meningothelial hamartoma is a benign developmental rest commonly found in the scalp, lung and lymph nodes and cured with surgery alone Terminology Ectopic meningioma: extracranial extraspinal meningioma, extraneural meningioma, extradural meningioma, cutaneous meningioma, calvarial meningioma, heterotopic meningioma, intraosseous meningioma