Nasit JG, Dhruva G. Nodular hidradenoma of the scalp: A cytomorphological evaluation on fine needle aspiration cytology. Indian J Dermatol. Am J Dermatopathol. Jul;34(5) doi: /DAD. 0bea4d A study of histopathologic spectrum of nodular hidradenoma. Nandeesh. J Craniofac Surg. Mar;22(2) doi: /SCS.0be Benign nodular hidradenoma of the face. Sirinoglu H(1), Çelebiler Ö.

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The cells were arranged in lobules and ducts some of which contained eosinophilic secretion Inset, arrow H and E, x Gauerke S, Driscoll JJ. Indian J Pathol Microbiol ; As a consequence, there is a great likelihood of being mistaken for other primary and metastatic tumors.

Numerous pigment-containing dendritic melanocytes were present among these epithelial cells Fig. Immunohistochemical stains S and HMB 45 in the melanocytes were also positive. Sebaceous differentiation is also common. Scalpface and extremities are common locations.

A study of histopathologic spectrum of nodular hidradenoma.

Cytologic diagnosis of this tumor is difficult because of its rarity and variable cytologic features. You can help Wikipedia by expanding it. Inset shows a mitotic figure arrow along with few cyst macrophages in background Diff Quik 40x.

Clear cells were also seen. Encapsulated sharply demarcated nodule extending into subcutaneous tissue along with admixed dendritic melanocytes. Cut section of lymph node showing grey white friable tumor with papillary excrescences with solid and cystic spaces Click here to view.


It mostly occurs in middle age.

The recognition is very important because eccrine carcinomas have potential of local destruction and distant metastasis. Cytosmears showed cohesive groups of oval to polygonal cells lying in a mucoid background star along with nnodular number of cyst macrophages. Neurofibroma can be a clinical mimic which is distinguished by presence of spindle cell component [ 8 ]. February 26, Citation: Hidradenomas are rare benign adnexal neoplasms that encompass a morphological gamut with a range of differentiation.

When tumors show malignant characteristics, they are known as hidradenocarcinoma. Views Read Edit View history. Case report of an “orphan disease” and review of the literature.

Cytosmears showed fairly cohesive groups of uniform oval to polygonal cells with cytoplasmic clearing in some. Home Publications Conferences Register Contact. The cells were chiefly eosinophilic with a regular oval grooved nucleus and a small inconspicuous nucleolus. Hidradenoma Micrograph showing an acrospiroma.

Nodular hidradenoma of male breast: Online since 15 th March ‘ We report a case of 45 year old female who came for FNA with a clinical suspicion of sebaceous cyst. Though conventionally regarded as eccrine, they have been reclassified into eccrine and apocrine types.

The common cytologic differential diagnosis includes hidradenooma cell tumors of skin, glomus tumor and sebaceous cyst. Based on above features, a diagnosis of pigmented nodular hidradenoma was made. The tumor cells were uniform round cells with round bland nucleiinconspicuous nucleoli and moderate pale eosinophilic to clear cytoplasm with distinct cell outline.


There was no evidence of squamous or spindle cell component.

Nodular Hidradenoma: A Rare Cytological Diagnosis

Journal of Clinical Pathology. The epidermis was partially ulcerated and the dermis showed well-circumscribed, multilobulated, sheets of epithelial cells surrounded by dense bundles of collagen extending into subcutaneous jodular. AD carried out literature search, clinical study and data acquisition.

Cytologic features of hidradenoma in fine needle aspiration hidgadenoma. The stroma varied from hyaline to myxoid. By using this site, you agree to the Terms of Use and Privacy Policy. Discussion of sweat gland tumors can be difficult and confusing due to the complex classification and redundant terminology used to describe the same tumors. Malignant nodular hidradenocarcinoma arising on the areola of a male patient: This study aims to document the histological spectrum hidrzdenoma nodular hidradenomas, with particular reference to categorizing them into eccrine or apocrine tumors.

Nodular hidradenoma also called eccrine acrospiroma is a common benign adnexal neoplasm usually found on the scalp, face, or anterior trunk [ 4 ].

Fine needle aspiration cytology of eccrine acrospiroma. J Cytol Histol ;2: Neoplasms of the nailbed.