A seven-day old male infant (weight 3.5 kg) presented with abdominal distension and a mass in the abdomen since birth. There was no history of exposure to any drugs or radiation to the mother in the antenatal period. All the laboratory investigations including beta-human chorionic gonadotropin (hCG) and alpha-fetoprotein (AFP) were normal. X-ray abdomen showed a mass effect in the abdomen with calcifications in the left hypochondrium (Fig.1A).
There are currently few data on the long‐term risk of cancer and death in individuals taking raltegravir (RAL). The aim of this analysis was to evaluate whether there is evidence for an association.
I demonstrate viability of the one-loop neutrino mass mechanism within the $SU(5)$ grand unification framework when the loop particles comprise two particular pairs of scalar leptoquarks (LQs) and the down-type quarks. The LQ multiplet components that propagate in the loop should mix for the mechanism to work. I accordingly classify all $SU(5)$ invariant operators that can yield the required mixing. If the LQs mediate proton decay at the tree-level the neutrino mass mechanism can only be viable when the LQ masses reside in a very narrow range between $10^{12}$ GeV and $5 \times 10^{13}$ GeV. I also present one realistic $SU(5)$ set-up where the LQs in the neutrino mass loop are collider accessible.
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