Sertoli Cell Tumor (Testicular)

Overview


Plain-Language Overview

Sertoli Cell Tumor (Testicular) is a rare type of tumor that develops in the testicles, which are part of the male reproductive system. These tumors arise from Sertoli cells, which normally support and nourish developing sperm cells. The tumor can cause a painless lump or swelling in the testicle and may sometimes produce hormones that lead to symptoms like breast enlargement or changes in sexual function. Although most Sertoli cell tumors are benign, some can be malignant and spread to other parts of the body. Diagnosis often involves physical exams, imaging, and sometimes surgery. Treatment usually focuses on removing the tumor to prevent complications. Understanding this condition helps in recognizing changes in testicular health and seeking appropriate medical care.

Clinical Definition

Sertoli Cell Tumor (Testicular) is a rare sex cord-stromal tumor arising from the Sertoli cells of the seminiferous tubules in the testis. These tumors represent a small subset of testicular neoplasms and are characterized by proliferation of Sertoli cells, which normally provide structural and nutritional support to germ cells. The pathogenesis involves neoplastic transformation of Sertoli cells, sometimes associated with genetic mutations such as in the CTNNB1 gene affecting the Wnt/β-catenin pathway. Clinically, these tumors present as painless testicular masses and may secrete hormones like estrogen, causing gynecomastia or precocious puberty in children. Histologically, they show tubular or trabecular patterns with cells positive for markers such as inhibin and calretinin. While most are benign, a minority exhibit malignant behavior with local invasion or metastasis, necessitating careful evaluation. Their clinical significance lies in their potential hormonal effects and the need to distinguish them from germ cell tumors for appropriate management.

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Differential Diagnoses


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