Multicentric Castleman Disease: Case 2
Garrett is a 47-year old male carpenter who was formerly a Marine, with a 4-week history of fatigue, night sweats, and weight loss. He reported difficulty breathing for 2 weeks, and 1 week of fevers. He also reported that he’s noted fluid in his legs. He presented to the emergency department for a work-up. His past medical history was only notable for Raynaud’s phenomenon. His family history included a mother that died from a myocardial infarction at 71 and a father who died from lung cancer at 61. His physical exam was notable for bilateral cervical and inguinal lymphadenopathy (1-2 cm), moderate edema (10 lb weight gain in past 7 days), and pleural effusions.
Laboratory findings showed anemia (Hgb: 11 gm/dl), low platelets (109k), and elevated alkaline phosphatase levels. The patient was admitted with a presumed viral illness and then moved to MICU when the patient began experiencing severe difficulty breathing, transaminitis, and increased fluid gain (30 lbs). Further testing showed his CRP >300 mg/L, albumin 1.2 g/dL, renal dysfunction, and Hgb trending downward (now 9 gm/dl), and PLTs trending downward (now 35k). His infectious workup was pan-negative, except for possible EBV infection (8/29/10: EBV PCR positive). He was diagnosed with acute EBV mononucleosis early in admission, but the diagnosis was rescinded when he was found to be EBV IgG+. A rheumatology workup was negative except for a positive ANA (1:120).
The patient was started on 125mg BID of solumedrol without improvement. His hematology/oncology workup was notable for: .
A bone marrow biopsy reported:
A lymph node biopsy was scheduled to be performed.