Apical Scars Alvaro C. Laga Timothy C. Allen Apical scarring of the lung, often referred to as apical caps, is found predominantly in older men and is usually a bilateral…

Lymphoid Interstitial Pneumonia Timothy C. Allen Lymphoid interstitial pneumonia (LIP) is presently regarded as a collection of dense lymphoid tissue within the lung that is highly suggestive of, and must…

Nodular Lymphoid Hyperplasia Timothy C. Allen Nodular lymphoid hyperplasia (NLH), referred to in the past as pseudolymphoma (a term to be avoided), is a rare reactive lymphoid proliferative disorder generally…

Seromucinous-Gland Neoplasms Seromucinous-gland neoplasms are uncommon neoplasms that arise from the bronchial glands. They include true mucous-gland adenomas as well as tumors similar to those found in the salivary glands….

Giant-Cell Tumor Alvaro C. Laga Timothy C. Allen Philip T. Cagle Primary giant-cell tumor (GCT) of the lung, a tumor histologically resembling giant-cell tumor of the bone, is extremely rare—only…

Pulmonary and Pleural Lymphangiomatosis Timothy C. Allen Megan K. Dishop Lymphangiomatosis is a rare disease of childhood and early adulthood involving the lung and pleura. Patients with lymphangiomatosis generally present…

Glomus Tumor Donna M. Coffey Glomus tumors are benign neoplasms derived from cells of the neuromyoarterial glomus or glomus body (malignant variants of this tumor, glomangiosarcomas, are discussed in Chapter…

Rare Adenomas Pulmonary adenomas include alveolar adenomas, papillary adenomas, and mucinous cystadenomas. All are extremely rare neoplasms. Part 1 Alveolar Adenoma Alvaro C. Laga Timothy C. Allen Philip T. Cagle…

Solitary Fibrous Tumor Alvaro C. Laga Timothy C. Allen Philip T. Cagle Solitary fibrous tumors (SFTs) are well-circumscribed spindle-cell mesenchymal neoplasms with hemangiopericytoma-like pattern with characteristic branching vessels (“staghorn vessels”)…

Sclerosing Hemangioma Alvaro C. Laga Timothy C. Allen Mary L. Ostrowski Philip T. Cagle Sclerosing hemangiomas are lung tumors originally considered to be of endothelial origin due to their vascular-like…