26 results match your criteria: "Dilated Pore of Winer"
Tumor of follicular infundibulum - reappraisal in a series of 28 patients with critical review of the literature.
J Dtsch Dermatol Ges
February 2024
Private Dermatohistopathological Laboratory Zelger, Innsbruck, Austria.
Article Synopsis
- Tumor of follicular infundibulum (TFI) is a controversial neoplasm that can occur alone or with other skin lesions, leading to varied definitions in histopathology.
- A study analyzed 28 patients with TFI, correlating their cases with existing literature, revealing a mix of patients with various skin conditions.
- The study concludes that TFI represents an epithelial growth pattern that may arise from different skin conditions and is best classified under seborrheic keratoses.
Dilated pore of Winer in a dog.
J Comp Pathol
January 2024
Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, 930 Campus Road, Ithaca, New York 14850, USA.
Article Synopsis
- A 9-year-old neutered Goldendoodle had a firm, hairless cyst on its neck that caused pain when it ruptured, leading to surgical removal.
- After surgery, histopathology revealed a bulbous cyst with unique lining features, indicating it was a dilated pore of Winer.
- This type of follicular cyst is common in humans but rarely seen in animals, marking this case as the first reported instance in a dog.
Skin collision tumour and dermoscopic diagnosis of melanoma in situ and dilated pore of Winer.
Australas J Dermatol
February 2022
Department of Surgery, Dermatology Service, Hospital Clínico Fuerza Aérea de Chile, Santiago, Chile.
Article Synopsis
- Collision tumours consist of two or more types of tumors occurring in the same area of the body, often leading to complex diagnoses.
- Dilated pore of Winer (DPW), an adnexal tumor, has been previously reported to collide with other skin cancers like basal cell carcinoma and squamous cell carcinoma.
- This study highlights the first documented case of DPW colliding with melanoma in situ and discusses the use of dermoscopy for diagnosis.
Visual Dermatology: Dilated Pore of Winer.
J Cutan Med Surg
December 2019
1 Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Multiple vulvar dilated pores in a postmenopausal woman.
An Bras Dermatol
October 2017
Department of Dermatology, Affiliated Hospital of Guangdong Medical University - Guangdong Province, China.
Article Synopsis
- - Winer's dilated pore is a rare type of skin tumor that appears as a large blackhead, typically found on the face, neck, and upper trunk in adults.
- - A case study discusses a 57-year-old woman who developed multiple painless black spots on her labia majora, which were confirmed as Winer's dilated pores through histopathology.
- - The study suggests that electrocautery could be an effective treatment for these lesions, noting that this patient may be the first reported case of multiple vulvar Winer's dilated pores.
Bothersome Cutaneous Lesion for more than 30 Years: Dilated Pore of Winer.
Klin Monbl Augenheilkd
April 2017
Augenzentrum Pallas Kliniken, Olten, Switzerland (Director: Prof. Dr. med. Heinrich Gerding, F. E. B. O.).
Benign follicular tumors.
An Bras Dermatol
June 2016
Centro Hospitalar Universitário de Coimbra, Coimbra, Portugal.
Article Synopsis
- - Benign follicular tumors are a varied group of skin neoplasms that resemble normal hair follicles and can sometimes indicate genetic syndromes associated with a higher risk of internal cancers.
- - The article explains the microscopic structure of hair follicles to help differentiate between various follicular tumors, which include conditions like trichoadenoma, pilomatricoma, and several others.
- - It emphasizes the importance of recognizing multiple follicular tumors in patients, as these could signal underlying cancer-prone syndromes, making early diagnosis crucial for proper treatment and genetic counseling.
Hair cortex comedo: a series of 34 cases.
Am J Dermatopathol
December 2010
WCP Laboratories Inc., St. Louis, MO 63043, USA.
Article Synopsis
- Hair cortex comedo was initially described in a study analyzing two cases with keratinous plugs similar to hair cortex, and a new series has identified 34 cases.
- The collected data indicate that these lesions predominantly occur in females (ratio of 1:1.4), average patient age is 28.8, and the lesions are typically solitary, appearing as blue subcutaneous nodules mainly on the head, neck, or trunk.
- Histological examination highlighted features like compact laminated corneocytes, entrapped melanin, and a surrounding granulomatous response, suggesting these lesions arise from specific hair follicle cells, distinguishing them from previously thought similar conditions.
Winer's dilated pore of the eyelid.
Ophthalmic Plast Reconstr Surg
February 2010
David G. Cogan Ophthalmic Pathology Laboratory, Massachusetts Eye and Ear Infirmary, Boston, Massachusetts 02114, USA.
Article Synopsis
- A 71-year-old woman presented with a whitish mass on her right lower eyelid, which contained an eccentric pore filled with keratin.
- A histopathologic examination revealed it was an epidermoid cyst that was connected to the skin surface and contained flaky keratin.
- The lesion was identified as a dilated pore of Winer and successfully removed through a simple excision without any recurrence.
[Immunohistochemical study of calretinin in normal hair follicles and tumors with follicular differentiation].
Actas Dermosifiliogr
December 2008
Servicio de Dermatología, Fundación Jiménez Díaz, Madrid, Spain.
Article Synopsis
- Selective immunostaining for calretinin can effectively label the inner layer of hair follicle root sheaths, which is not easily visible with standard staining methods.
- The study aimed to assess whether calretinin immunohistochemistry could help identify skin tumors with characteristics similar to hair follicle cells.
- Findings revealed that various tumors showed different patterns of calretinin staining, indicating that this method can assist in distinguishing cutaneous adnexal tumors related to hair follicles.
Dilated pore of Winer.
Indian J Dermatol Venereol Leprol
August 2007
Department of Dermato-Venereology, Govt Medical College & Rajindra Hospital, Patiala-147 001, Punjab, India.
Article Synopsis
- Two cases of dilated pore of Winer were reported, characterized by distinct black papules with defined margins and central pores.
- The first case involved a single papule on the nose discharging black powdery material for three years, while the second case had a larger papule on the forearm along with several smaller ones.
- Histopathological examination confirmed the diagnosis in both cases, revealing dilated hair follicle structures and unique skin changes.
Winer's dilated pore, rare presentation in the external ear canal.
Auris Nasus Larynx
November 2001
ENT Department, Blackburn Royal Infirmary, BB2 3LR, Blackburn, UK.
Article Synopsis
- - A 51-year-old woman was seen for persistent discharge from her right ear for six months, which didn't improve with treatment; examination revealed a skin defect and changes in the ear canal's bone structure.
- - A CT scan and subsequent biopsy confirmed she had Winer's dilated pore, a rare hair follicle tumor that can mimic more serious skin lesions due to its non-specific appearance and potential for bone erosion.
- - The case highlights the importance of accurate diagnosis to prevent unnecessary aggressive treatments for benign conditions that could be mistaken for malignancies like squamous or basal cell carcinoma.
Winer's dilated pore: the infundibuloma.
Am J Dermatopathol
June 2001
1717 Avocado Road, Oceanside, CA 92054, USA.
Article Synopsis
- The article reviews Louis H. Winer's insights on the dilated pore and surveys related literature on the topic.
- It includes a histological overview of the follicular infundibulum and isthmus, followed by a discussion on other proliferations that are claimed to differentiate towards the infundibulum.
- The author argues against the notion that Winer's dilated pore is merely a cyst, presenting evidence to classify it as a unique neoplasm that specifically differentiates toward the infundibulum (termed infundibuloma).
Trichoid basal cell carcinoma found in a dilated pore on the nose.
Dermatol Surg
September 2000
Department of Dermatology, University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma, USA.
Article Synopsis
- A pore of Winer is a benign skin tumor that originates from hair follicles.
- In a particular case, the removal of a pore of Winer unexpectedly showed trichoid basal cell carcinoma, a type of skin cancer.
- The paper discusses the history of these tumors, how to differentiate them clinically and histologically, and suggests reasons for finding cancer cells in this benign growth.
Hair cortex comedo.
Am J Dermatopathol
June 1996
Department of Dermatology, Kyushu University Faculty of Medicine, Fukuoka, Japan.
Article Synopsis
- Two cases of skin lesions were observed that looked like comedones, featuring firm black papules.
- Histopathological examination revealed these lesions resembled dilated hair follicles with issues related to the hair cortex.
- The authors suggest that these findings represent a unique variant of a known skin condition, proposing the term "hair cortex comedo" for these lesions.
Dilated pore nevus. A histologic variant of nevus comedonicus.
Am J Dermatopathol
April 1993
Hahnemann University Hospital, Department of Medicine, Philadelphia, Pennsylvania 19102.
Article Synopsis
- A histological examination of a nevus comedonicus revealed clusters of enlarged follicular cysts, similar to a condition known as dilated pore of Winer.
- This particular observation is a new finding not documented before in medical literature.
- The authors suggest naming this lesion "dilated pore nevus," viewing it as a specific histological variant of nevus comedonicus, akin to other related skin conditions.
[Tricholemmal hamartoma].
G Ital Dermatol Venereol
May 1990
Istituto di Clinica Dermatologica, II Cattedra, Università di Torino.
Article Synopsis
- A 23-year-old man has a keratotic-nodular lesion on his neck that he has had since he was a child.
- The lesion shows histological features like a funnel-shaped follicle with central keratin material and resembles a dilated pore of Winer.
- The authors suggest naming this uncommon tumor as tricholemmal hamartoma due to its distinct characteristics.
The dilated pore of Winer--an overlooked cutaneous lesion of cats.
J Comp Pathol
November 1989
New York State College of Veterinary Medicine, Cornell University, Ithaca, New York.
Article Synopsis
[The Winer dilated pore].
Med Cutan Ibero Lat Am
August 1989
Cátedra y Servicio de Dermatología, Hospital Clínico, Barcelona, España.
Article Synopsis
- Dilated pore (Winer) is a benign skin tumor resembling a large comedo and typically appears on the faces of older adults.
- It requires differential diagnosis from similar skin conditions like basal cell carcinoma and senile sebaceous adenoma due to its raised borders.
- Histological examination reveals characteristic features such as dilated hair follicle structures with atrophy below them, and the article discusses two typical cases of this often-overlooked condition.
Article Synopsis
- This report analyzes clinical and histological data from 54 biopsies of dilated pores from 45 patients in Munich and 39 biopsies from 36 patients in Detroit.
- It identifies the dilated pore of Winer as a common benign tumor originating from the outer hair root sheath and describes four distinct types of dilated pores, emphasizing that it is not a trichoepithelioma.
- Additionally, the report discusses the pilar sheath acanthoma of Mehregan and Brownstein, detailing findings from 11 biopsies in Munich and 9 in Detroit, along with their clinical features and differentiation from other tumors.
[The infundibular adenoma: a follicular poroma with sebaceous and apocrine differentiation (author's transl)].
Ann Dermatol Venereol
July 1981
Article Synopsis
- - Tricholemmal adnexal pilar tumors are categorized based on their structural similarities to hair follicle zones and their level of maturity or cell differentiation.
- - Tumors like pilar sheath acanthoma and follicular poroma originate from the infundibulum, exhibiting keratinization similar to epidermis, while tricholemmal cysts and tricholemmomas are associated with different parts of hair follicles and have unique keratinization patterns.
- - In a study of 68 skin adnexal tumors identified as follicular poromas, 6 cases displayed features of sebaceous and apocrine differentiation, leading to the suggested term "infundibular adenoma" for these specific tumors.*