Xin’s blood was drawn and testing was conducted. His hematocrit was 45% and white-blood cell count was 2,500 white-blood cells/mm3, with the differential showing neutrophils 65%, lymphocytes 25%,...

Xin’s blood was drawn and testing was conducted. His hematocrit was 45% and white-blood

cell count was 2,500 white-blood cells/mm3, with the differential showing neutrophils 65%,

lymphocytes 25%, monocytes 10%. A  biopsy was taken of one of the discolored lesions and

cell culture. After three days of growth the cells were confirmed as coming from

malignant cancerous tissue. A magnetic resonance image (MRI) of the area around the skin

lesions on Xin’s inner thigh revealed enlarged lymph nodes, a sign of potential metastasis. DNA

sequencing of the lesion biopsy revealed DNA consistent with human herpesvirus 8, known

as Kaposi’s sarcoma-associated herpesvirus, leading to the diagnosis of Kaposi’s sarcoma.

- What Disorders can be ruled in and out from this diagnosis?