Egypt is by some definitions part of the Middle East, geographically it is a transcontinental country, the bigger part of the country stretches along the Nile in North Africa while the Sinai Peninsula is in Western Asia.
See interstitial cell. The testosterone-secreting cell of the testis which is located in clusters in the interstitium between the seminiferous tubules. Leydig cells are large and have centrally located nuclei, eosinophilic cytoplasm and numerous lipid-filled cytoplasmic vacuoles.Function.ee interstitial cell. The testosterone-secreting cell of the testis which is located in clusters in the interstitium between the seminiferous tubules. Leydig cells are large and have centrally located nuclei, eosinophilic cytoplasm and numerous lipid-filled cytoplasmic vacuoles.
Definition. Testicular sex cord stromal tumors include Leydig cell tumors, Sertoli cell tumors, and granulosa cell tumors. Leydig cell tumors (see the image below) are derived from normal Leydig cells that produce testosterone and are located in the interstitium of the testis.Leydig cell tumor.Note the clear cytoplasm.eydig cell tumor. Boys with Leydig cell sex cord stromal tumors present with endocrinologic symptoms (virilization, gynecomastia), while men present with a testicular mass; some (10-30%) have gynecomastia. In boys, Leydig cell tumors are benign. However, in men, 10-17% of these tumors are malignant.