Fig. 2From: “Sponge pattern” of the spleen: a rarely described high-frequency ultrasound pattern in HIV-positive patientsExamples of spleen tissue a Normal homogenous spleen tissue; b Sponge pattern in a patient with disseminated Kaposi’s sarcoma, c with MAC infection (also in Additional file 3: Video clip S1a) d with underlying pulmonary PCP infection. e Micro-abscesses in the spleen of patient with disseminated TB for comparisonBack to article page