November 2022 in “Journal of the Endocrine Society” An 8-year-old boy's early puberty was caused by a rare hormone-secreting brain tumor, which was successfully treated with surgery.
September 2016 in “Journal of The American Academy of Dermatology” The girl has a genetic hair condition causing thin hair since childhood.
September 2024 in “The Journal of Dermatology” Nevus comedonicus can sometimes grow terminal hair, challenging previous beliefs.
17 citations
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January 2014 in “Journal of Oral and Maxillofacial Pathology” Seborrheic keratosis is a common, harmless skin growth that can look like cancer, so it may need a biopsy.
32 citations
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July 2001 in “Journal of the American Academy of Dermatology” SLHA can be hard to diagnose and needs teamwork between specialists.
March 2025 in “International Journal of Trichology” Vigorous rubbing of herbal powder on the scalp caused hair damage and loss.
8 citations
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June 2016 in “Journal of Cutaneous Pathology” Two women were diagnosed with a rare melanoma that looked like hair loss but was actually a type of skin cancer.
February 2021 in “IP Indian journal of clinical and experimental dermatology” A rare non-cancerous tumor that grows like hair was found in an unusual spot, the vulva.
3 citations
,
January 2012 in “Internal Medicine” A Rathke's cleft cyst caused hormonal imbalances and symptoms in a 68-year-old woman.
27 citations
,
December 2005 in “Journal of Cutaneous Pathology” The malignant pilomatricoma showed strong epithelial keratin expression, suggesting it may not calcify.
Hirsutism is excessive male-pattern hair growth in women, often treated cosmetically or with hormone therapy if contraception is also desired.
April 2018 in “Journal of Investigative Dermatology” Watching, not removing, skin growths with moderate atypia and positive edges is okay; patients may get melanoma elsewhere, especially if they've had it before.
8 citations
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November 2015 in “The American journal of dermatopathology/American journal of dermatopathology” Punctate follicular porokeratosis is a skin condition with specific features seen in hair follicles.
November 2025 in “Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin” Sporadic trichoblastic neoplasms generally don't recur or spread, with one case showing a specific genetic fusion.
12 citations
,
January 2000 in “Journal of cutaneous medicine and surgery” Microorganism overgrowth and hyperkeratosis may trigger immune reactions causing lichen planopilaris.
2 citations
,
February 2021 in “Endocrinology, diabetes & metabolism case reports” A teenage girl had both a rare ovarian tumor and a severe form of polycystic ovarian syndrome.
December 2022 in “Journal of Medical Case Reports” 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.
1 citations
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December 1998 in “PubMed” Surgery on a 68-year-old woman with an ovarian tumor led to reduced hirsutism and normal testosterone levels.
December 2014 in “Endocrinología y nutrición” The woman's rare combination of diseases suggests an unknown factor may predispose individuals to multiple endocrine diseases.
142 citations
,
September 2015 in “PubMed” Keloid scars are aggressive, excessive skin scars with unique features and complex diagnosis.
69 citations
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August 1999 in “Developmental biology” The nude gene causes skin cell overgrowth and improper development, leading to hair and urinary issues.
21 citations
,
September 1968 in “Cancer” Citrulline in certain skin tumors suggests they mimic hair growth, helping distinguish them from other cancer types.
8 citations
,
October 2024 in “Developmental Cell” 34 citations
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January 1998 in “Archiv für Pathologische Anatomie und Physiologie und für Klinische Medicin” Trichoblastomas may mimic fetal skin development by having many Merkel cells, unlike adult skin.
2 citations
,
January 1989 in “The Nishinihon Journal of Dermatology” Seborrheic keratosis likely originates from the upper regions of hair follicles.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
11 citations
,
June 1974 in “Journal of Cutaneous Pathology” Follicular mucinosis causes significant damage to hair follicle cells.
2 citations
,
January 2018 in “Sovremennye problemy nauki i obrazovaniâ” Hirsutism and acanthosis nigricans are important for diagnosing PCOS; dermatologists play a key role in early detection and treatment.
7 citations
,
March 2023 in “Gynecological Endocrinology” After tumor removal, the woman regained normal hormone levels, menstruated, and had a healthy baby.
October 2025 in “Journal of the Endocrine Society” Anastrozole can cause increased testosterone, leading to symptoms like hair growth and thinning.