Radiology Case of the Month: Idiopathic CD4 Lymphocytopenia.

A 39 year-old male with a history of diabetes, retinitis pigmentosa, and genital warts presented with intractable occipital headaches accompanied with nausea and vomiting. The patient had markedly depressed CD4 counts. Furthermore the patient tested negative for HIV and HTLV 1/2 and had normal immunoglobulin levels.

Radiology Case of the Month: Persistent Lateral Foot Pain.

A 33-year-old female presents with persistent lateral foot pain. Patient does not recall prior trauma that may have led to injury. Symptoms are significantly improved with rest and nonsteroidal anti-inflammatory medications.

Radiology case of the month. An unusual case of hemorrhage with rapid deterioation. Posterior reversible encephalopathy syndrome (PRES).

A 42-year-old female presented to the emergency room with altered mental status and visual disturbances. Patient has a known history of recent liver transplant and currently takes cyclosporine. Patient underwent multimodality imaging, including CT and MRI and suffered rapid deterioration within 24 hours.

Progressive paresthesia and weakness after intrathecal chemotherapy.

A 53-year-old woman was diagnosed with acute lymphoblastic leukemia (ALL) confirmed by bone marrow biopsy to be pre-B ALL. The patient underwent a hyperfractionated cyclophosphamide, doxorubicin, vincristine, and dexamethosone (hyper-CVAD) regimen, except the doxorubicin was withheld. She received two intrathecal injections of cytarabine and methotrexate and two months later presented to Tulane University Hospital with paresthesias and weakness causing her to be wheelchair bound.