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Noninflammatory retiform purpura is an important sign of cutaneous microvascular occlusion.
Cocaine-associated retiform purpura and neutropenia: is levamisole the culprit?
Retiform parapsoriasis, however, progresses "to cutaneous T-cell lymphoma in almost 100% of cases.
There were also papillary configuration and tufts of capillaries with hobnail pattern or match stick pattern [Figure 3, 5, 6 & 7], suggesting that there is an overlap of cavernous haemangioma with retiform haemangioendothelioma.
Moreover, mesonephric hyperplasia, as discussed earlier, may have unusual patterns such as slitlike anastomosing tubules resembling retiform or endometrioid-like growths seen in mesonephric adenocarcinoma.
The retiform spaces show mitosis and nuclear atypia.
The list of entities he described is remarkable: juvenile granulosa cell tumor, sclerosing stromal tumor, retiform Sertoli-Leydig cell tumor, small cell carcinoma of the hypercalcemic type, luteinized thecoma associated with sclerosing peritonitis, and Mullerian mucinous borderline tumors.
17) This was particularly the case when there was retention of the retiform epidermis, as observed in 15% of RN, and confluent proliferation of atypical melanocytes.
7-9) In contrast to acral and mucosal lentiginous melanoma, lentiginous melanomas are located on the head and neck and the trunk and arms, show preservation of the retiform epidermis, and consist of less cytologically atypical cells.
Although Michal (12) first reported 4 cases in 1999 and named them retiform perineuriomas, Ushigome et al (35) were the first to describe the reticular pattern in a perineurioma in 1986 (histologically well documented in Figure 4 of that manuscript).