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Thoracic MRI.
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Near this mass, there was a clearly defined and extended lymph node (Fig. 1).
Sweat Gland Adenocarcinoma (Excisional Biopsy).
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Macroscopically, this tumor had two cystic cavities (one with a fetid black secretion and other with a doughy white secretion) (Fig. 2).
Sweat Gland Adenocarcinoma (Histology).
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The pathologist described this mass as an irregular tumor (6.4 x 3.9 x 2.5 cm, 7.0 g) compatible with apocrine, papillary and acinar adenocarcinoma, with free surgical margins (Fig. 3).
Axillary Dissection.
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After an extensive review of the literature, the patient was submitted to an classic axillary dissection preserving nerve structures, since this patient had a large lymph node next to the tumor, possibly positive to metastasis, but no other clinical manifestation or metastatic site (Fig. 4).
Axillary Lymph Node Metastasis.
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