… Langerhans cell histiocytosis (PLCH) is an isolated form of Langerhans cell histiocytosis …
PLCH is characterized by peribronchiolar proliferation of Langerhans cell infiltrates that form …

Malignant fibrous histiocytoma (MFH) is a pleomorphic sarcoma, occurring most frequently
in the deep soft tissues of the extremities. Primary osseous MFH is less common. MFH is the …

… with the diagnosis of granular cell tumor, has the added benefit of demonstrating both the
intraluminal and extraluminal extent of disease in patients who present with biliary obstruction. …

Lesions of the pineal region include a diverse group of entities. The most common
neoplastic lesions are the germ cell tumors. Germ cell tumors may be hormonally active, and …

Germ cell tumors occur most frequently in the gonad but can rarely occur in extragonadal
locations, usually in or near the midline. The most common extragonadal site of primary germ …

Primary vascular neoplasms of the spleen constitute the majority of nonhematolymphoid
splenic tumors. The benign primary vascular tumors include hemangioma, hamartoma, and …

… The prognosis for renal cell carcinoma varies with stage and histologic grade. The 5-year
survival rate for patients with stage 1 disease (tumor confined within the renal capsule) of low …

… The entire mass was forwarded to the AFIP for histopathologic evaluation. The clinical …
AFIP established the diagnosis of sinus histiocytosis. The patient was discharged from the …

Testicular carcinoma represents only 1% of all neoplasms in men, but it is the most common
malignancy in the 15–34-year-old age group. Germ cell tumors constitute 95% of all …

… In this article, we use case material from the Thompson Archives of the Department of
Radiologic Pathology at the Armed Forces Institute of Pathology to illustrate the spectrum of cross-…