research Virilizing Malignant Steroid Cell Tumor: Leydig Cell Subtype in a 24-Year-Old Palestinian Female
A 24-year-old woman had a rare ovarian tumor that caused male-pattern hair growth and was hard to diagnose and treat.
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research Virilizing Malignant Steroid Cell Tumor: Leydig Cell Subtype in a 24-Year-Old Palestinian Female with Histopathological and Biochemical Challenges: A Case Report
A young woman had a rare, aggressive ovarian tumor that was hard to diagnose and treat, leading to disease progression despite treatment.
research A Very Rare Reason for Hyperandrogenism: Adrenal Tumor Case
A young woman had a rare tumor causing high male hormone levels and symptoms like excessive hair and acne. After removing the tumor, her hormone levels returned to normal. Early diagnosis is important.
research Rare Virilizing Tumor: Ovarian Steroid Cell Tumor, Not Otherwise Specified: A Case Report
A 20-year-old woman was found to have a rare ovarian tumor causing symptoms like acne and a low-pitched voice, which disappeared after the tumor was removed.
research A 1.6cm Androgen Secreting Ovarian Leydig Cell Tumor Evades Detection on Multiple Imaging Modalities
A woman's small ovarian tumor causing high androgen levels was missed by several scans but found during surgery.
research A Hairy Situation: Ovarian Sex Cord Stromal Tumor As A Rare Cause Of Hyperandrogenism
A rare ovarian tumor caused high testosterone and excess hair in a woman, which was resolved after tumor removal.
research Ovarian Leydig Cell Tumor: Cause of Virilization in a Postmenopausal Woman
A rare, non-cancerous ovarian tumor was successfully treated with surgery, improving the patient's symptoms.
research Rare Diagnosis of a Proliferating Pilar Tumor in a Facial Hairline Cyst
The lump on a woman's scalp was a rare, potentially cancerous tumor from the hair follicle, not a common cyst.
research Rare Case of Ovarian Steroid Cell Tumor Not Otherwise Specified in a Postmenopausal Woman
A woman's rare ovarian tumor was treated with surgery, which stopped her symptoms and normalized her hormone levels.
research Ovarian Hilus Cell Hyperplasia and Sertoli-Leydig Cell Tumor in a Patient with Postmenopausal Virilization: A Rare Case Report
A woman's male-like physical changes were caused by two rare ovarian conditions.
research Possible Association Between Androgenic Alopecia and Risk of Prostate Cancer and Testicular Germ Cell Tumor: A Systematic Review and Meta-Analysis
There might be a link between male pattern baldness and a higher risk of prostate cancer and testicular cancer.
research Virilizing Adrenocortical Tumor: A Case Report
The removal of the adrenal tumor improved the patient's symptoms and reduced androgen levels, indicating successful surgery.
research Virilization in a Postmenopausal Woman: Ovarian Leydig Cell Tumor
A postmenopausal woman's virilization was caused by a rare ovarian tumor that was hard to detect but was successfully treated with surgery.
research Androgen Secreting Steroid Cell Tumor of the Ovary Presented with Postmenopausal Bleeding and Extensive Hirsutism
Ovarian steroid cell tumors should be considered in adults with hirsutism and high testosterone, with surgery as the main treatment.
research Testosterone-Secreting Tumor or Insulin Resistance? Metformin as a Diagnostic and Therapeutic Trial
Metformin can help diagnose and treat high testosterone levels in women, often due to insulin resistance rather than a tumor.
research Disappearance of a Virilizing Adrenal Tumor Following Therapy with Cyproterone Acetate
A woman's adrenal tumor disappeared after treatment with cyproterone acetate.
research Risk of Abnormal Pregnancy Completing Chemotherapy for Gestational Trophoblastic Tumor
After chemotherapy for a gestational trophoblastic tumor, normal pregnancy rates are possible, but there's a slightly higher risk of the tumor reoccurring in future pregnancies.
research Rare Case of Leydig Cell Tumor with Type I Diabetes Mellitus Causing Female Pattern Hair Loss
Woman with diabetes had hair loss due to rare ovarian tumor; surgery improved hair growth.
research Conversion of C57Bl/6 Mice from a Tumor Promotion-Resistant to a Sensitive Phenotype by Enhanced Ornithine Decarboxylase Expression
A transgenic mouse model was developed to overexpress ornithine decarboxylase (ODC) specifically in hair follicle keratinocytes using a regulated system. In the absence of doxycycline, these mice showed high levels of epidermal ODC activity and hyperplasia when exposed to the tumor promoter TPA, particularly affecting hair follicles. This effect was reversed by adding doxycycline, which repressed transgene expression. The study found that increased ODC expression made the typically tumor promotion-resistant C57Bl/6 mice more sensitive to TPA's effects, as evidenced by a reduction in papilloma development when ODC expression was repressed.
research Anticancer Effects of Metformin on Neuroendocrine Tumor Cells In Vitro
Metformin may help treat neuroendocrine tumors.
research Short-Term Biomarkers of Cigarette Smoke Condensate Tumor Promoting Potential in Mouse Skin
The study investigated the effects of cigarette smoke condensates (CSCs) on mouse skin, focusing on hyperplasia and inflammation as short-term biomarkers of tumor promotion. Using a truncated initiation-promotion protocol, the research assessed epidermal thickness, proliferative index, and ornithine decarboxylase (ODC) expression after CSC application. Results showed that CSCs increased these markers, with partial reversibility in interfollicular areas but sustained elevation in perifollicular regions. The study highlighted perifollicular ODC expression as a promising indicator for evaluating CSCs due to its rapid induction, low threshold, and potential to reflect irreversible changes, aligning with the notion that ODC expression is crucial for tumor promotion and that tumors primarily originate in the perifollicular epidermis.
research Cutaneous Lymphadenoma Is a Distinct Trichoblastoma-like Lymphoepithelial Tumor With Diffuse Androgen Receptor Immunoreactivity, Notch1 Ligand in Reed-Sternberg-like Cells, and Common EGFR Somatic Mutations
Cutaneous Lymphadenoma is a unique skin tumor with specific protein markers and common gene mutations that may cause continuous cell growth.
research Cyclin D3 Deficiency Inhibits Skin Tumor Development But Does Not Affect Normal Keratinocyte Proliferation
Lacking cyclin D3 reduces skin cancer growth without affecting normal skin cell growth.
research Giant Solitary Trichoepithelioma: A Rare Trichogenic Tumor
Giant solitary trichoepithelioma is a rare, usually non-cancerous hair follicle tumor that can sometimes turn into skin cancer.
research Activator Protein-1 Activity Regulates Epithelial Tumor Cell Identity
Inhibiting AP-1 changes skin tumor types and affects tumor cell identity.
research Activator Protein-1 Activity Regulates Epithelial Tumor Cell Identity
Inhibiting AP-1 changes skin tumor types and affects tumor cell identity.
research Management of a Refractory EIF3E-RSPO2 Fusion Positive Pilomatrical Cancer Patient with Encyclopedic Tumor Analysis Guided Treatment
Personalized treatment based on detailed tumor analysis successfully managed and reduced the patient's aggressive hair follicle cancer.
research The Role of Pygo2 During Intestinal Tumor Initiation and Progression In Vivo
Pygo2 is important for early growth and progression of intestinal tumors, and could be a target for treating cancers with certain mutations.
research Targeting mTORC1 May Provide Selectivity for Inhibiting Proliferation of Hair Follicle Stem/Progenitor Cells During Tumor Promotion
Blocking mTORC1 may help prevent skin cancer by stopping the growth of certain skin stem cells.
research Conversion of C57Bl/6 Mice from a Tumor Promotion-Resistant to a Sensitive Phenotype by Enhanced Ornithine Decarboxylase Expression
The study developed a transgenic mouse model to investigate the role of ornithine decarboxylase (ODC) in tumor promotion. By using a tetracycline-regulated system, researchers were able to overexpress ODC specifically in hair follicle keratinocytes of C57Bl/6 mice. In the absence of doxycycline, these mice showed high levels of epidermal ODC activity and hyperplasia when exposed to the tumor promoter TPA, particularly affecting hair follicles. This increased ODC expression made the typically tumor-resistant C57Bl/6 mice more sensitive to tumor-promoting effects. However, when doxycycline was used to repress ODC expression, the number of papillomas was significantly reduced, demonstrating the critical role of ODC in tumor promotion.