Path Quiz Case- 23
Dr Sampurna Roy
MD
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Benign sweat gland tumours Cysts: Hydrocystoma -Eccrine/Apocrine Porokeratotic eccrine ostial naevus Benign Neoplasms: Syringocystadenoma Papilliferum Chondroid Syringoma (benign mixed tumour) Low grade: Primary extramammary Paget’s disease Intermediate grade: Digital papillary adenocarcinoma High grade: |
Syn.: Erosive adenomatosis, papillary adenoma, florid papillomatosis. Adenoma or florid papillomatosis of the nipple is a rare, benign neoplasm of breast lactiferous ducts , clinically frequently misdiagnosed as Paget's disease. Clinical presentation: Papillary adenoma of the nipple typically occur in a female patient as an erosion, ulceration, or mass that is sometimes accompanied by serous or bloody discharge from the nipple. The lesion is usually unilateral and less than 1cm in diameter.
Microscopic features:
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Histologically this is a well- defined lesion in the nipple dermis composed
of ducts similar to breast. Some of these ducts have papillary projections
into the lumen. Epithelial hyperplasia may be present. There may be variable
amounts of sclerosis, apocrine metaplasia or squamous metaplasia. Papillary adenoma of the nipple is often histologically misinterpreted as syringocystadenoma papilliferum , hidradenoma papilliferum , or low-grade adenocarcinoma.
Image Links
(Dr Weems)
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Surgical-Pathology.com
Nutritional Pathology Online Environmental Pathology Online INDEX: A-D ; INDEX: E-L ; INDEX: M-P ; INDEX: Q-Z ; FUNGAL DISEASE ; VIRAL DISEASE. |
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Tumours of the Hair Follicle Hair Germ Differentiation: Desmoplastic Trichoepithelioma Infundibular differentiation: Tumour of Follicular Infundibulum Outer root
sheath differentiation: Proliferating Trichilemmal Cyst (Pilar Tumour)
Matrical differentiation: |