Poroid Hidradenoma: A Rare Finger Lesion

Area of Science:

• Dermatology
• Oncology
• Pathology

Background:

• Poroid hidradenomas are uncommon neoplasms originating from eccrine sweat glands.
• They are part of the spectrum of poroid neoplasms, including hidroacanthoma simplex and eccrine poroma.
• Accurate diagnosis is crucial due to histological overlap with other adnexal tumors.

Observation:

• A 56-year-old female presented with a nodular lesion on the palmar aspect of her right middle finger.
• The lesion was surgically excised under local anesthesia.
• Histopathological examination was performed for diagnosis.

Findings:

• Histopathology confirmed the diagnosis of poroid hidradenoma.
• The tumor was predominantly composed of cuticular and poroid cell types.
• This confirms poroid hidradenoma as a distinct entity within poroid neoplasms.

Implications:

• Highlights the need for high clinical suspicion in diagnosing rare finger tumors.
• Emphasizes the critical role of precise histopathological evaluation.
• Informs appropriate management strategies for poroid hidradenomas.