In previous experiments dealing with the two types of L.E. plasma factor we found that the transferable (stable) type did not become inactivated, even when heated at 650 C. for 60 min. In plasma transfer experiments carried out on dogs we succeeded in producing L.E. cells by means of a stable type of plasma factor kept at 560 C. for 60 min., whereas the non-transferable (labile) type of plasma ...

Saudi Arabia is a country in which people of different ethnic origin as well as expatriates live together. There are a few reports describing the clinical and laboratory features of SLE from different regions of the Kingdom [2] including our retrospective study from Eastern Saudi Arabia [2]. The purpose of this short review is to compare the clinical spectrum of adult systemic lupus in differen...

Leprosy (Hansen’s disease) is a chronic granulomatous infection caused by Mycobacterium leprae affecting primarily skin and nerves. Leprosy is an important clinical problem and is also a challenging diagnostic problem for clinicians. Clinically, leprosy might at times be diffi cult to be distinguished from lupus vulgaris. We report a 70-year-old woman who showed a well-demarcated erythematous e...