research Secondary Amenorrhea and Clinical Hyperandrogenism in a 34-Year-Old Female: Polycystic Ovary Syndrome or Not?
The woman's symptoms were due to an androgen-secreting tumor, not PCOS.
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360-390 / 1000+ resultsresearch Cylindroma as Tumor of Hair Follicle Origin
Cylindromas likely originate from hair follicle stem cells, not sweat glands.
research SAT378 Unusual Case of Hirsutism From Prolactinoma Induced Dihydrotestosterone Elevation
A woman's excessive hair growth was linked to a rare case of high testosterone caused by a prolactin-producing pituitary tumor.
research Virilism and Ectopic Expression of HSD17B5 in Mature Cystic Teratoma
A woman's mature cystic teratoma caused her virilization by producing testosterone.
research SAT-223 Insights into Ovarian Hyperandrogenism: Lessons from Two Unusual Cases
The study found that imaging might miss small ovarian tumors causing high testosterone, and suggested using certain testosterone levels and treatment responses to identify these tumors.
research (673) Seminoma in SRY-Negative 46, XX Testicular Disorder of Sex Development Presenting as Acute Abdomen: An Extremely Rare Case Report
Rare seminoma found in a 33-year-old woman with atypical genitalia and no Y chromosome.
research Pten loss in Lgr5+ hair follicle stem cells promotes SCC development
Loss of Pten in certain hair follicle stem cells increases skin cancer risk.
research Multiple desmoplastic trichoepitheliomas with ossification and cholesterol deposition
A man had rare skin tumors with bone formation and cholesterol deposits.
research Endometrioid adenofibroma arising in an endometriotic cyst
A woman's pelvic pain and bleeding led to finding and successfully treating a rare benign tumor in her reproductive system.
research Specific In Vivo Ablation of Lrig1-Positive Follicular Progenitor Cells Results in Sebaceous Gland Loss in Mice
Removing Lrig1-positive cells in mice leads to temporary loss of sebaceous glands.
research A Large Benign Adrenocortical Adenoma Cosecreting Testosterone and Cortisol
A woman's rare benign tumor that released both cortisol and testosterone was successfully removed, improving her health.
research 1373 Specific in vivo ablation of Lrig1-positive follicular stem cells results in sebaceous gland loss in mice
Removing Lrig1-positive stem cells in mice causes temporary loss of sebaceous glands.
research Case Report: A Virilizing Adrenal Oncocytoma
A woman's symptoms of increased body hair and testosterone were caused by a rare adrenal tumor, which was removed successfully.
research Pathologic Quiz Case: A Nodule on the Back
The nodule on the woman's back was a benign hair follicle tumor, not cancer, but needed removal.
research Case Report: Postmenopausal hyperandrogenism misled by adrenal incidentaloma: a rare case of androgen-secreting ovarian adult granulosa cell tumor and clinical implications
Thorough evaluation and surgery are crucial for managing rare ovarian tumors in postmenopausal women with high androgen levels.
research Merkel cell differentiation in trichoblastoma
Trichoblastomas may mimic fetal skin development by having many Merkel cells, unlike adult skin.
research Ovarian intratumoral 21-hydroxylase deficiency in a postmenopausal hirsute woman
A postmenopausal woman's masculine symptoms improved after surgery for a hormone-producing ovarian tumor.
research Suety and Spreading-Stromal Hyperplasia and Hyperthecosis Ovary
These ovarian conditions cause high testosterone levels.
research Skin tumors with matrical differentiation: lessons from hair keratins, beta‐catenin and PHLDA ‐1 expression
Matrical tumors share a common growth mechanism involving the Wnt pathway and consistent PHLDA1 expression.
research Glioblastoma cells express crucial enzymes involved in androgen synthesis: 3β‐hydroxysteroid dehydrogenase, 17‐20α‐hydroxylase, 17β‐hydroxysteroid dehydrogenase and 5α‐reductase
Glioblastoma cells can make androgens, which might help the tumor grow.
research Coexistence of a Basal Cell Carcinoma and Leiomyosarcoma
A rare case showed basal cell carcinoma and leiomyosarcoma coexisting, needing careful diagnosis and treatment.
research Resection of a pure androgen secreting adrenal adenoma in a postmenopausal woman: a case report
Removing an adrenal tumor can significantly reduce high androgen levels in postmenopausal women.
research The Case of the Elusive Androgen
The patient's high testosterone was reduced by a medication that suppresses gonadotropin.
research Lgr5+ stem cells and their progeny in mouse epidermis under regimens of exogenous skin carcinogenesis, and their absence in ensuing skin tumors
Lgr5+ stem cells do not cause skin tumors.
research Feminizing Adrenocortical Carcinoma Without Gynecomastia
A man with a rare adrenal cancer showed unusual symptoms and died four months after diagnosis.
research Testosterone- and Cortisol-Secreting Adrenocortical Oncocytoma: An Unusual Cause of Hirsutism
A woman's excessive hair growth was caused by a rare benign tumor in her adrenal gland, which was successfully removed.
research The effect of chemotherapy regimens in male germ cell tumors on the development of primary hypogonadism
Chemotherapy for male germ cell tumors often leads to hypogonadism and related symptoms.
research CPC14 Blaschko-linear trichoepitheliomas: unveiling type 1 segmental mosaicism
A rare skin condition in a boy is likely due to a specific genetic mutation pattern.
research Compartmentalized Epidermal Activation of β-Catenin Differentially Affects Lineage Reprogramming and Underlies Tumor Heterogeneity
Activating β-catenin in different skin stem cells causes various types of hair growth and skin tumors.
research LRIG1 is a positive prognostic marker in Merkel cell carcinoma and Merkel cell carcinoma expresses epithelial stem cell markers
LRIG1 is linked to better survival in Merkel cell carcinoma.