science

Eccrine carcinoma

Eccrine carcinoma is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Eccrine carcinoma rather than just read about it. In short: Eccrine carcinoma is a rare skin condition characterized by a plaque or nodule on the scalp, trunk, or extremities. It originates from the eccrine sweat glands of the skin, accounting for less than 0.01% of diagnosed cutaneous malignancies.

Key takeaways

Eccrine carcinoma belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Eccrine carcinoma to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Eccrine carcinoma from memory before moving on to harder problems.

Reference excerpt

Eccrine carcinoma is a rare skin condition characterized by a plaque or nodule on the scalp, trunk, or extremities. It originates from the eccrine sweat glands of the skin, accounting for less than 0.01% of diagnosed cutaneous malignancies. Eccrine carcinoma tumors are locally aggressive, with a high rate of recurrence. Lack of reliable immunohistochemical markers and similarity to other common tumors has made identification of eccrine carcinoma difficult. Most eccrine carcinomas which have not spread can be cured by wide local excision. However, metastatic disease carries a poor prognosis.

Symptoms Eccrine carcinoma results in brown, bluish, erythematous skin lesions across the body. Common regions where lesions are found are in the lower extremities (35%), head and neck (24%), and upper extremities (14%).

Complications Metastases and/or antagonistic side effects can occur after surgical excision of tumors.

Types Eccrine carcinomas include porocarcinoma, hidradenocarcinoma, malignant spiradenoma carcinoma, malignant cylindroma, syringoid eccrine carcinoma, microcystic adnexal carcinoma, mucinous carcinoma, adenoid cystic carcinoma, and ductal papillary adenocarcinoma. Other tumors not classified include eccrine ductal carcinoma, basaloid eccrine carcinoma, clear cell eccrine carcinoma and non-specified sweat gland carcinomas.

Causes There is no research yet as to what causes Eccrine carcinoma.

Diagnosis A skin biopsy is the most common test used to diagnose eccrine carcinoma. The biopsy will detect growth of new or abnormal tissue. Another test that can be performed is using immunohistochemistry, but it is inconsistent. Markers used to detect eccrine carcinoma consist of carcinoembryonic antigen, progesterone receptors, estrogen receptors, epithelial membrane antigen, pancytokeratins, and cytokeratin 7.

Treatment Wide surgical excision is the mainstay of treatment. Chemotherapy and radiation therapy have been used in metastatic disease.

Prognosis In the absence of metastasis, local excision is curative in 70–80% of cases. Metastatic eccrine carcinoma has a relative mortality rate of 65% (with local lymph node involvement alone) to 80% (with distant metastases), and the 10-year overall survival rate is 9%.

Frequency Eccrine carcinoma accounts for 0.005-0.01% of diagnosed cutaneous malignancies.

See also Microcystic adnexal carcinoma Skin lesion

References

External links

Illustrations

Worked examples

Example 1 — a first encounter with Eccrine carcinoma

Start with the simplest possible case. Write down what Eccrine carcinoma claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Eccrine carcinoma before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Eccrine carcinoma ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Eccrine carcinoma

In research: Eccrine carcinoma appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Eccrine carcinoma in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Eccrine carcinoma is common in secondary-school and first-year university syllabi. It links to neighbouring topics Epidermal nevi, neoplasms, and cysts, so understanding it makes those chapters shorter.
In everyday life: Look for Eccrine carcinoma outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

Ask Teacher Smith questions about this articleOpens your AI tutor with a question about “Eccrine carcinoma” →

Affiliate

Preply — study more efficiently by working with a personal tutor. 50% off.

How to study Eccrine carcinoma in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Eccrine carcinoma means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Eccrine carcinoma out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Eccrine carcinoma in simple terms?

Why does Eccrine carcinoma matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Eccrine carcinoma?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Eccrine carcinoma.