Lymphangiomatosis: a differential diagnosis of lytic lesions of the temporal bone

Objective:We report a histologically proved case of lymphangiomatosis of the skull, involving the temporal bone and presenting as multiple lytic bone lesions.Method:A case report and a review of the literature concerning lymphangiomatosis are presented.Results:Lymphangiomatosis affecting bones is a rare disorder caused by a congenital malformation of the lymphatic system, resulting in diffuse proliferation of the lymphatic channels and involving bones, parenchymal organs and soft tissue. Involved bones show massive osteolysis and progressive, localised bone resorption.Conclusion:Lymphangiomatosis should be kept in mind in the differential diagnosis of lytic lesions of the skull.

Schwannoma del ganglio genicolato simulante una lesione intrassiale temporale Segnalazione di un caso

We describe a surgically proved case of a schwannoma originating at the geniculate turn of the facial canal and presenting as a huge intracranial temporal mass.

Nannizzia fulva. [Descriptions of Fungi and Bacteria].

A description is provided for Nannizzia fulva. Information is included on the disease caused by the organism, its transmission, geographical distribution, and hosts. HOSTS: Recorded only from man (but see NOTES). Guinea-pigs have been experimentally infected. DISEASE: Ringworm (dermatophytosis, tinea). Nannizzia fulva is present in the soil and apparently only rarely pathogenic. The scalp (tinea capitis) and glabrous skin (tinea corporis) may be infected. Skin lesions are inflammatory. The only proved case of scalp infection is that recorded by Uriburu (1909); according to Sabouraud (Les Teignes, 1910, p. 241) in this case there was a light inflammatory reaction and infected hairs were indistinguishable from those in M. audouinii infections. In experimental inoculations of guineapigs (Rdzanek, pers. comm.) N. fulva was slightly less virulent than N. gypsea and N. incurvata, the reaction varying from negative to strongly inflammatory. A few ectothrix hyphae breaking up into arthrospores were seen on some hairs, and infected hairs did not fluoresce under Wood's light. GEOGRAPHICAL DISTRIBUTION: Africa (Tanzania), Europe (Great Britain, Hungary, Yugoslavia), South America (Argentina). Probably world-wide in distribution in the soil, but there may be local limiting factors (e.g., in Great Britain it has been recorded only for Bristol, Somerset, and Wiltshire).

Fundamental Observations on the Production of Compensatory Polycythemia in a Case of Patent Ductus Arteriosus With Reversed Blood Flow

A proved case of patent ductus arteriosus occurring distal to the origin of the left subclavian artery with persistent reversal of flow through the shunt and compensatory polycythemia has been reported. Studies of cellular morphology and oxygen saturation of the bone marrow in the sternum and ilium were performed. The results indicated that the sternal marrow manifested the same marked degree of normoblastic hyperplasia as the iliac marrow, although the oxygen saturation of the iliac marrow was markedly decreased as compared to the normal saturation of the sternal marrow. This demonstrates that anoxia of the bone marrow could not have been the stimulus to the increased erythropoietic activity found in the sternal marrow. The study appears to support the belief that anoxemia of the blood stimulates the production or release of a humoral factor which in turn produces increased erythropoiesis.