Breast Neoplasms ; Female ; Humans ; Paget Disease, Extramammary/surgery* ; Sweat Gland Neoplasms ; Vulvar Neoplasms/surgery*

Eccrine porocarcinoma is a rare malignant tumor arising from the intraepidermal ductal portion of the eccrine sweat gland. It develops either spontaneously or from a long standing benign eccrine poroma. This entity usually affects older people and is commonly located on the lower extremities, the trunk, and the head. We report a case of eccrine porocarcinoma on the left cheek in an 85-year-old male. In our case, the tumor was treated with wide excision and postoperative adjuvant radiation therapy. The patient recovered well without local recurrence and distant metastasis during the 14-month follow-up period. Wide excision and postoperative adjuvant radiation therapy can be considered as a safe and effective treatment option in treating patients with eccrine porocarcinoma.
Aged, 80 and over ; Cheek ; Eccrine Porocarcinoma ; Follow-Up Studies ; Head ; Humans ; Lower Extremity ; Male ; Neoplasm Metastasis ; Poroma ; Radiotherapy, Adjuvant ; Recurrence ; Sweat Gland Neoplasms ; Sweat Glands

Syringocystadenocarcinoma papilliferum (SCACP) is a rare malignant adnexal neoplasm, which is considered as a malignant counterpart of syringocystadenoma papilliferum (SCAP). Clinically, SCACP appears as a nodule, inflammatory plaque, or tumor. The lesion is usually covered with crusts, which are formed by secretion of the apocrine epithelial cells. Histologically, SCACP resembles SCAP, with cystic papillomatous invaginations connected to the skin surface by funnel-shaped structures lined by infundibular epithelium. The stroma of the tumor consists of a dense inflammatory infiltrate of plasma cells and lymphocytes. SCACP differs from SCAP in terms of the architectural and cytological features of the tumor cells, and is characterized by higher nuclear cytoplasmic ratio, nuclear irregularity, coarse chromatin, and increased mitotic activity. However, the immunohistochemical findings of SCACP vary. Since only 49 cases of SCACP have been reported in the English literature, the clinical and histologic characteristics of SCACP have not been fully established. Further studies on the diagnostic criteria for SCACP are warranted. Here, we report a rare case of SCACP and present a review of other relevant literature.
Chromatin ; Cytoplasm ; Epithelial Cells ; Epithelium ; Lymphocytes ; Plasma Cells ; Skin ; Sweat Gland Neoplasms

Syringoid eccrine carcinoma (SEC) is a rare cutaneous malignant tumor thought to be derived from eccrine sweat apparatus. It is usually present in the head, neck and trunk region, and often occurs in the fourth to seventh decades of life. A 94-year-old male patient visited our department with an 80-year history of a lesion showing a 2×2 cm sized well-demarcated round shaped erythematous to pinkish colored nodule with ulcer on his left thigh. Histological findings revealed a tumor consisted mainly of numerous small cords and nests forming luminal or tubular structures and tumor cells showing variable atypia. Some ductal structures showed tadpole appearance. On immunohistochemical staining, epithelial membrane antigen, S-100, cytokeratin 7 and carcinoembryonic antigen were reactive and Ki-67 showed less than 10% positivity. Based on these findings, the final diagnosis was made as SEC. The patient was treated with local wide excision and didn't show any recurrence during the follow-up period of 12 months. Herein, we report a very rare case of SEC which occurred on the left thigh and discuss 10 cases of SEC presented on the extremities, including our case.
Carcinoembryonic Antigen ; Diagnosis ; Extremities ; Follow-Up Studies ; Head ; Humans ; Keratin-7 ; Larva ; Male ; Mucin-1 ; Neck ; Phenobarbital ; Recurrence ; Sweat ; Sweat Gland Neoplasms ; Thigh* ; Ulcer

INTRODUCTION: Eccrine  carcinoma  is  an  extremely  rare  skin tumor where only 1/13000 specimens have been submitted to dermatopathological  laboratories  in  the  United  States.There  is  no  data  yet  to compare the Philippines with the international  incidence  of  eccrine  carcinoma.  This is a case of a 69-year-old Filipino female who presented with a recurring invasive indolent tumor at the right fronto-parietal area who presented with left sided hemiparesis and seizure.
CASE: The patient was presented with a recurrent invasive indolent  mass  on  her  right  front-parietal  area,  grossly measuring five by four centimeters, nodular flesh colored,which  extended  intracranially.This was associated with left sided hemiparesis and due to the extent of the tumor encroaching through the brain parenchyma, patient was noted  to  have  seizure  episodes.  The  patient  was  given surgical and radiologic options however, she did not comply and died last December 2015.
RESULTS: A cranial MRI with MRA showed a  heterogenous enhancing intracranial mass with extracranial component with compressed entrapped and depressed superior sagittal sinus  by  the  axial  mass  witin  calvarial  penetration  and scalp involvement compressing on the right parietal lobe with parenchyma edema. Biopsy was eventually done and findings were consistent with an eccrine carcinoma.
CONCLUSION: This is the first case of eccrine carcinoma in our institution. Due to the paucity of data, there are no guidelines to the management of an eccrine carcinoma. Hence the imperative need to raise awareness regarding this rare tumor because,  without  a  high  index  of  suspicion  this  rare  entity may be overlooked or misdiagnosed. When presented with an indolent invasive recurrent tumor a high index of suspicion that  an  eccrine  Carcinoma  may  be  suspected.Excision biopsy may be done for correct identification of the tumor.

Human ; Female ; Aged ; Scalp ; Superior Sagittal Sinus ; Seizures ; Sweat Gland Neoplasms ; Biopsy ; Skin Neoplasms ; Carcinoma, Skin Appendage ; Brain ; Edema ; Paresis ; Parietal Lobe

Nodular hidradenoma was diagnosed in a 29-month-old girl on her axilla. Hidradenoma, sometimes designated as acrospiroma, is a benign sweat gland neoplasm, which mostly occurs in adults. Very few cases of hidradenoma have been documented in children in their first decade of life. This case demonstrates that when a child develops a skin nodule, nodular hidradenoma can be a diagnostic option.
Acrospiroma* ; Adult ; Axilla ; Child ; Child, Preschool* ; Female ; Humans ; Skin ; Sweat Gland Neoplasms

OBJECTIVETo investigate the clinicopathological features and the differential diagnosis of poroma and porocarcinoma.

METHODSHistopathological characteristics and clinical data of 35 cases of poroma and 10 cases of porocarcinoma were analyzed retrospectively.

RESULTSThe average age of 35 patients of poroma was 48 years. The average age of 10 patients of porocarcinoma was 65 years. Both poroma and porocarcinoma occured most frequently on the scalp and face,as well as the extremities. Histologically, cases of poroma were divided into three subtypes, including classic poroma (23 cases), hidroacanthoma simplex (3 cases) and dermal duct tumor (9 cases). Residual foci of benign poroma were found in all cases of porocarcinoma, most of which were classic poroma. The malignant components showed severe dysplasia and/or stromal infiltration.

CONCLUSIONThe diagnosis of poroma and porocarcinoma is mainly based on the microscopic characteristics. An invasive architectural pattern and/or significant cytologic pleomorphism are the most important clues for the diagnosis of porocarcinoma. Neither focal mitotic activity nor the presence of necrosis was the diagnostic feature of porocarcinoma. Malignant transformation can occur in some cases of long existing poroma with recent, rapid tumor enlargement.

Aged ; Cell Transformation, Neoplastic ; Diagnosis, Differential ; Eccrine Porocarcinoma ; pathology ; Extremities ; Head and Neck Neoplasms ; pathology ; Humans ; Middle Aged ; Poroma ; pathology ; Retrospective Studies ; Scalp ; Skin Neoplasms ; pathology ; Sweat Gland Neoplasms ; pathology

Primary epithelial-myoepithelial carcinoma (EMC) of the lung is an extremely rare neoplasm that originates from submucosal bronchial glands and has been found in the salivary glands, breast tissue, and sweat glands. However, only a few cases in the respiratory tract have been identified. In the literature, most pulmonary EMCs have been reported to have developed endobronchially although a few EMC cases have been presented as intraparenchymatous tumors. We have identified a case of primary EMC that developed in the peripheral lung parenchyma.
Breast ; Lung Neoplasms ; Lung* ; Respiratory System ; Salivary Gland Neoplasms ; Salivary Glands ; Sweat Glands

Tumors occurring in the external auditory canal (EAC) are rare. In particular, tubular adenoma (TA) is an extremely rare sweat gland neoplasm occurring in the EAC and is generally considered as benign. Up to now, less than one hundred cases of TA have been reported in the English literature. In fact, a comprehensive review of literature shows that TA in the EAC has seldom been reported. Herein, we report a case of a 35-year-old man with TA that occured in the EAC, together with characteristic histopathological findings.
Adenoma ; Aminocaproic Acids ; Apocrine Glands ; Ear Canal ; Sweat Gland Neoplasms

Pheochromocytoma is a rare neuroendocrine tumor that is usually derived from adrenal medulla or chromaffin cells along with sympathetic ganglia. In Western countries, the prevalence of pheochromocytoma is estimated to be between 1:6,500 and 1:2,500, compared with an incidence in the United States of 500 to 1,100 cases per year. Despite this low incidence, pheochromocytoma should always be considered for differential diagnoses because previous studies have shown that this condition can be cured in approximately 90% of cases. However, an untreated tumor is likely to be fatal due to catecholamine-induced malignant hypertension, heart failure, myocardial infarction, stroke, ventricular arrhythmias or metastatic disease. Symptoms that result primarily from excess circulating catecholamines and hypertension include severe headaches, generalized inappropriate sweating and palpitations (with tachycardia or occasionally bradycardia). Pheochromocytoma, however, has highly variable and heterogeneous clinical manifestations, including fever, general weakness and dyspepsia, and can be observed in patients who are suffering from infectious diseases. Several of such case reports have been presented, but most of these included infectious patients with high blood pressure and severe fluctuations. In this study, we presented the case of a 53-year-old male who showed normal blood pressure, but had a sustained fever. He was diagnosed with diabetic ketoacidosis, infective endocarditis and asymptomatic adrenal incidentaloma. Despite treatment with antibiotics and valve replacement, the fever persisted. After the patient underwent evaluation for the fever, adrenal incidentaloma was identified as pheochromocytoma. After removal of the abdominal mass, his fever improved.
Adrenal Gland Neoplasms ; Adrenal Medulla ; Anti-Bacterial Agents ; Arrhythmias, Cardiac ; Blood Pressure ; Catecholamines ; Chromaffin Cells ; Communicable Diseases ; Diabetic Ketoacidosis ; Diagnosis, Differential ; Dyspepsia ; Endocarditis ; Fever ; Ganglia, Sympathetic ; Headache ; Heart Failure ; Humans ; Hypertension ; Hypertension, Malignant ; Incidence ; Male ; Middle Aged ; Myocardial Infarction ; Neuroendocrine Tumors ; Pheochromocytoma ; Prevalence ; Stress, Psychological ; Stroke ; Sweat ; Sweating ; Tachycardia ; United States