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This case report describes a twenty-year-old woman misdiagnosed with a sebaceous cyst that was actually pilomatrixoma, a benign skin lesion from hair matrix cells, confirmed by histopathology after excision.

This case report describes a postmenopausal woman with a rare instance of ovarian fibrothecoma exhibiting virilizing features, who presented with symptoms such as excess hair growth and clitoromegaly.

This review discusses the characteristics of benign biphasic ovarian neoplasms called adenofibromas and reports no new clinical findings.

Surgeons should know about pilomatricoma for accurate diagnosis, even though it's rare.

This case study diagnosed an ovarian teratoma in a 15-year-old labrador based on histopathological examination, revealing a complex tumor with various tissue types.

A man had a non-cancerous, fast-growing skin lump on his arm that was removed with surgery.

This study examined 16 sporadic trichoblastic tumors and found that although one showed malignant transformation, clinical follow-up revealed no residual or metastatic disease. RNA sequencing indicated a high tumor mutational burden and absence of a UV-related signature, helping to distinguish these tumors from similar growths.

This case report suggests that ovarian steroid cell tumors should be considered in postmenopausal women with hirsutism and elevated testosterone, with surgery being effective in resolving symptoms and preventing recurrence.

Onychomatricome is a benign nail tumor with specific dermoscopic features that help distinguish it from cancer.

This study introduces the term "hair matrix cyst" for a cyst with both pilomatricoma and epidermal cyst characteristics, highlighting its potential for misdiagnosis among similar skin conditions.

This case study describes a rare steroid cell tumor of the ovary in a 42-year-old woman, highlighting its virilizing effects and the importance of thorough follow-up due to its potential for malignancy.

This case report describes a rare instance of a giant and atypical proliferating pilomatrixoma on the eyelid, successfully treated with surgical excision, with no recurrence observed after one year, emphasizing the need to excise and histologically evaluate enlarging periocular masses to rule out malignancy.

This case report describes successful CO2 ablation treatment of porokeratotic adnexal ostial nevus in an 8-year-old boy, with marked improvement over a 12-year follow-up.

This article reviews the characteristics and diagnostic criteria of tricholemmoma and tricholemmal carcinoma, detailing their clinical presentations and associations but reports no new clinical findings.

This case study found that a skin lesion in a Samoyed dog did not match any single known follicular cyst or neoplasm type described in the literature.

In this report, two cases of melanocytic matricoma, a rare benign hair follicle lesion that mimics melanoma and basal cell carcinoma, were described and successfully treated with complete surgical excision. Histological analysis was crucial for differentiation from similar malignant lesions.

In this case report, a 71-year-old woman with severe hyperandrogenism and virilization revealed a bilateral ovarian steroid cell tumor, confirmed after adnexectomy, resulting in normalized testosterone levels and improved hirsutism post-surgery.

This case report highlights the challenge of differentiating between non-classical adrenal hyperplasia and steroid cell tumors of the ovary in a patient presenting with hyperandrogenism.

This case report describes an 80-year-old woman with severe androgenic alopecia linked to Leydig cell hyperplasia in an ovarian cyst, highlighting the need to investigate androgen-secreting tumors in similar cases.

In this case report, a 34-year-old with a slowly growing mass near the right parotid gland was diagnosed with pilomatrixoma, a rare benign hair follicle tumor, which was only confirmed pathologically after surgical excision.

This case report describes the presence of a teratoma within an equine antral follicle and suggests that the ovary maintained functionality despite the teratoma, as indicated by active antral follicles and recent ovulation.

This case report describes a patient with an ovarian steroid cell tumor that initially presented as non-classical adrenal hyperplasia, emphasizing the difficulty in differential diagnosis with hyperandrogenism and the importance of close clinical monitoring.

This case report from a German study detailed a 2-year-old girl with virilization and precocious puberty due to a rare ovarian steroid cell tumor, finding that post-surgery, her elevated hormone levels normalized within a week, and ongoing follow-up showed no need for chemotherapy.

In this case report, a 27-year-old woman with a swelling on her neck was initially misdiagnosed with squamous cell carcinoma, but was later identified as having pilomatrix carcinoma with lymph node metastasis, highlighting the importance of accurate diagnosis for effective treatment and prognosis improvement.

In this case report, a 48-year-old woman's hyperandrogenism, presenting with symptoms like acne and hirsutism, was attributed to a benign Leydig cell tumor, which resolved after surgical removal.

This case report described a facial hairline tumor initially diagnosed as a sebaceous cyst but ultimately confirmed as a rare Proliferating Pilar Tumor with focal malignancies upon histopathological examination.

This case report describes a 48-year-old woman with a history of PCOS and chemotherapy-induced menopause who was found to have a rare ovarian steroid cell tumor causing postmenopausal hyperandrogenism.

This case series highlights that nail clipping can aid in early detection and surgical planning of onychomatrical tumors by distinguishing between benign and potentially malignant growths based on the cavities' average dimensions.

This case study found that a 1.6cm ovarian Leydig cell tumor, causing hyperandrogenism in a postmenopausal woman, evaded detection on standard imaging techniques, underscoring the difficulty of diagnosing such tumors with imaging alone.

This review discusses the diagnosis and management of acquired haemophilia and reports no new findings; the authors highlight the importance of early diagnosis to reduce mortality.