PMC3764692_01
Positron emission tomography/computed tomography showing enlarged right testis with intense metabolic activity, normal sized left testis, loco regional bilateral small volume inguinal nodes also showing intense FDG uptake. Hyper metabolic additional areas of hyper metabolic activity in contra lateral testis, adrenal, small bowel loops, and superior vena cava
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F1
There were additional areas of hyper metabolic activity noted in extra testicular extra nodal sites such as, contra lateral testis, adrenals, and small bowel loops [Figure 1].
Positron emission tomography/computed tomography image showing metabolically active hypo dense area encircling the superior vena cava right atrial junction
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F2
Metabolically active area of a CT based hypo dense area encircling the superior vena cava right atrial junction [Figure 2].
Positron emission tomography/computed tomography revealing hyper metabolic nodule in the sub cutaneous planes of right thigh
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F3
Hyper metabolic nodule was noted in the subcutaneous planes of right thigh [Figure 3].
Histopathology of right testis showing microscopically shaved entrapped somniferous tubules in sheets of large monomorphic dyscohesive cells showing vesicular pleomorphic nuclei, clumped chromatin, small nucleoli, and minimal amount of cytoplasm suggesting primary testicular diffuse large B cell lymphoma
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F4
Tunica was not infiltrated with tumor [Figure 4].
Interim positron emission tomography/computed tomography post-surgery and four cycles of chemotherapy showing complete morphological and metabolic regression of all the lesions
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F5
Findings were consistent with primary testicular diffuse large B cell lymphoma, Post surgery chemotherapy with Cyclophosphamide, Hydroxydaunorubicin, Oncovin (Vincristine), Prednisolone regimen was followed by an interim PET after four cycles of chemotherapy, which showed complete morphological and metabolic regression of all the lesions [Figure 5].