Presentation
It usually presents as an asymptomatic flesh-colored nodule in the anogenital area of women.[1] A 32-year-old female patient presented with an asymptomatic nodule of 4 months duration in the vulva. [ncbi.nlm.nih.gov]
Although there are scattered reports of HP involving the eyelid, to our knowledge, we present the first case of HP of the orbit. Methods: A 63 year-old female presented with progressive left upper eyelid fullness over an 18 month period. [scinapse.io]
[…] in eyelids / external auditory canal or heterotopic apocrine glands Rare case reports of sebaceous differentiation in ectopic HP (Pathology 2019;51:362) Clinical features Solitary dermal or subcutaneous nodule, < 1 - 2 cm Usually asymptomatic but can present [pathologyoutlines.com]
We describe a case of PH with prominent papillary features, arising in the thigh of a 70-year-old white man who presented with a 2-cm reddish lesion. [journals.lww.com]
Report of a Case A 54-year-old white woman was admitted to the Norwalk Hospital, Norwalk, Conn., on July 24, 1951, with a perianal mass which had been present for about 20 years. [jamanetwork.com]
Skin
- Papule
Left areola erythematous papule External auditory canal Gross description Solid, skin colored papule, usually < 1 - 2 cm Microscopic (histologic) description Well circumscribed dermal maze-like or arborizing proliferation (rarely connected to epidermis [pathologyoutlines.com]
Treatment
[…] old man with left areolar papule (An Bras Dermatol 2018;93:474) 38 year old woman with painful vaginal mass (J Med Case Rep 2021;15:162) 56 year old man with unilateral hearing loss and an external auditory canal mass (Ann Med Surg (Lond) 2019;49:41) Treatment [pathologyoutlines.com]
Prognosis
Higher mitotic activity indicates worse prognosis It is often associated with a plasma cell infiltrate It is positive for EMA and GCDFP-15 Malignant transformation occurs frequently Back to top [pathologyoutlines.com]
The tumor has got a good prognosis and malignant transformation is extremely rare.[3] When an adult female presents with a nodular lesion in the anogenital area, hidradenoma papilliferum should be kept in mind along with other conditons such as sexually [ncbi.nlm.nih.gov]
Epidemiology
[…] apocrine differentiation Terminology Also referred to as papillary hidradenoma ICD coding ICD-O: 8405/0 - papillary hidradenoma / hidradenoma papilliferum ICD-10: D23.5 - other benign neoplasm of skin of trunk ICD-10: D28.0 - benign neoplasm of vulva Epidemiology [pathologyoutlines.com]