Discussion
Diagnosis With Brief Discussion
- Diagnosis
- Castleman's disease, hyaline vascular type
- Radiologic Findings
- Chest PA shows a mass at right hilar area.
CT scans show a mass with smooth margin at right hilum. The mass dose not infiltrate surrounding structure. The mass is well enhanced more than muscle. Right upper lobectomy was performed. The gross specimen shows a yellowish glistening cut surface. Microscopic specimen shows multiple germinal centers interspersed in a population of mononuclear cells.
- Brief Review
- Castleman disease is a relatively rare disorder of lymphoid tissue, and it is also known as angiofollicular hyperplasia or giant lymph node hyperplasia. The disease may occur anywhere along the lymphatic chain but most commonly is found as a solitary mass in the mediastinum. Two distinct histologic patterns have been described, the hyaline-vascular type, which accounts for 90% of cases, and the plasma cell type accounting for the remainder.
Disseminated Castleman disease is currently regarded as a potentially malignant lymphoproliferative disorder that has been associated POEMS (polyneuropathy, organomegaly, endocrinopathy, monoclonal proteinemia, and skin changes) syndrome, osteosclerotic myeloma, Kaposi sarcoma, and acquired immunodeficiency syndrome. The patient of presented case had the axonal polyneuropathy, borderline hepatosplenomegaly, diabetes mellitus, hyperpigmentation, and hypertricosis.
CT images obtained after the intravascular administration of contrast material show marked enhancement within the mass. Imaging studies show one of three morphologic patterns: (a) a solitary mass (50%), (b) a dominant infiltrative mass with associated lymphadenopathy (40%), or (c) diffuse lymphadenopathy confined to a single mediastinal compartment (10%).
- References
- 1. Moon WK, Im J-G, Kim JS, et al. Mediastinal Castleman disease: CT findings. J Comput Assist Tomogr 1994; 18:43-46
2. McAdams HP, Rosado-de-Christenson M, Fishback NF, Templeton PA. Castleman disease of the thorax: radiologic features with clinical and histopathologic correlation. Radiology 1998; 209:221-228
- Keywords
- Mediastinum, Lymphproliferative disorder,