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Dr Sampurna Roy
MD
 Site created by Dr Sampurna Roy MD
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| Soft TissueTumours of Uncertain Differentiation |
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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: |
| Sebaceous tumours |
Apocrine adenomas are very rare adnexal tumours. Tubular apocrine adenoma (tubulopapillary hidradenoma with apocrine differentiation) was first described in 1972. Visit:Papillary Eccrine Adenoma Tubular apocrine adenomas show some features of syringocystadenoma papilliferum . Some cases have been associated with naevus sebaceous. Clinical presentation: Slow growing circumscribed nodule. Site: Apocrine adenomas have been reported in the axilla, cheek and breast. Cases reported in vulval and perianal region are now known as 'adenomas of anogenital mammary-like glands'. Tubular apocrine adenomas are often located on the scalp. Microscopic features: Tumour is composed of well-differentiated dilated tubular structures situated in the dermis and sometimes in the subcutis ; Tubules contain typical apocrine epithelial cells, some with hyaline or clear cell differentiation ; Myoepithelial cells are also present (absent in adenocarcinoma) ; Papillary projections and cystic changes may be present ; Overlying epidermis may be hyperplastic ; Tubules are separated by fibrous tissue with scanty inflammatory cells. Differential diagnosis: Syringocystadenoma Papilliferum ; Apocrine adenocarcinoma;
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Link (Dr.Weems):
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Abstract:
Is tubular apocrine adenoma a distinct
clinical entity? Tubular apocrine adenoma.J Cutan Pathol. 1987;14(2):114-7. Tubular apocrine adenoma: apropos of a case. Dermatologica. 1984;169(1):23-8. Tubular apocrine adenoma.J Cutan Pathol. 1976;3(2):75-87.
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