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Dr. Hafeez Diwan's Blog

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All that glitters is not gold – the importance of context in the evaluation of atypia

All that glitters is not gold – the importance of context in the evaluation of atypia “It’s too atypical to be malignant.” “It’s too atypical and so it has to be malignant.” These are too variations on the theme of atypia, and lead the thinker to two contradictory conclusions. I am sure you have either heard or spoken at least one of these two statements. Obviously, atypia doesn’t mean the same in every situation and to every person. Or, as Shakespeare wrote (in his T

Dr. Hafeez Diwan

Dr. Hafeez Diwan

Looking into the seeds of time…the importance of the clinical outcome

Many years ago I saw a biopsy of well-differentiated invasive squamous cell carcinoma. Let me backtrack and say that I thought it was a squamous cell carcinoma. To my eye, what I saw was a markedly atypical and acanthotic proliferation of keratinocytes invading deeply into the dermis. But I was wrong. This was a patient with fifty such lesions on her legs, and this lesion, which I swore was a well-differentiated invasive squamous cell carcinoma, melted away after a steroid injection. C

Dr. Hafeez Diwan

Dr. Hafeez Diwan

THE MILK OF HUMAN KINDNESS AND THE DIAGNOSIS OF MELANOCYTIC LESIONS

When I diagnose things a certain way, the likelihood increases that I will diagnose those things in a similar or same way in the future. We are shaped by our training and our actions. This is akin to Shakespeare’s Macbeth getting more comfortable with murder after he had committed the first one. It is the first murder (or diagnosis) that is often the toughest one. Remember that Macbeth had to be pushed and bullied by Lady Macbeth before he committed his first murder. Lady Macbeth d

Dr. Hafeez Diwan

Dr. Hafeez Diwan

The Texas Sharpshooter Fallacy and Dermatopathologists - you don’t have to be in Texas to suffer from it

Although I am in Houston, Texas, I cannot make any exclusive claims to the Texas Sharpshooter Fallacy. This fallacy is one which I believe we dermatopathologists (as well as others) should be aware of. What exactly is this fallacy? Where do sharpshooters come into this, and why specifically in Texas? The name, if Wikipedia is to be believed, comes from the story of a Texan who shot holes in the side of a barn and then painted a bull’s eye around a group of them, giving rise to the mistak

Dr. Hafeez Diwan

Dr. Hafeez Diwan

What’s in a name?

Some months ago, a colleague shared a nail biopsy with me. To me it looked like melanoma in situ. It was seen at a consensus conference we have every week with other institutions in the Houston area. Everybody who saw it thought it was melanoma in situ. The problem was that the patient was an eleven-year-old boy. Given the age of this child, this case was sent in consultation to other experts. One expert opined that it was a junctional nevus with features of pigmented spindle cell nevu

Dr. Hafeez Diwan

Dr. Hafeez Diwan

LEARNING FROM GOLDOVSKY - When Toxoplasmosis is Toxoplasmosis

Boris Goldovsky, a man I was unaware of until a few minutes ago, made an important dermatopathologic contribution (without meaning to). He lived from 1908 to 2001, and was a famous conductor and producer of opera. It is reported that he had a piano student who played bar 78 from Brahms Op 76 No.2 incorrectly – or so Goldovsky believed. He asked his student to play it correctly, and the student showed Goldovsky that he had played the notes exactly as they were printed on the score. It was l

Dr. Hafeez Diwan

Dr. Hafeez Diwan

Cleaning your hands: what’s the skinnection? Can cleaning your hands make you a better dermatopathologist?

Almost every dermatopathologist has had this feeling. You go to a meeting, for example, and hear a talk about the diagnoses which were missed and the often disastrous consequences that ensued – both for the patient and for the dermatopathologist, legally, financially, and morally. Nobody wants to miss important diagnoses. This is never more so than when it comes to melanocytic lesions. I usually return from dermatopathology meetings with that Sixth Sense-esque feeling of I-see-melanomas (t

Dr. Hafeez Diwan

Dr. Hafeez Diwan

The 'Whirling' Dermatopathologist: Can NOT looking hard at a case make you a more confident and competent dermatopathologist?

Imagine you have been given a task as follows: Rearrange the following words to form another word, but do not attempt to unscramble a word further down the list until you have successfully solved the preceding word. Here are the words: “whirl,” “slapstick,” and “cinerama.” Unless you have a brain disorder that makes you incredibly, even supernaturally smart, I am willing to bet that you will find it difficult, if not impossible to unscramble the words “whirl” and “slapstickâ€

Dr. Hafeez Diwan

Dr. Hafeez Diwan

The Israeli Parole Board and Dermatopathologists - What’s the Skinnection?

The unifying theme behind this series of blogs is as follows: dermatopathologists are humans first and dermatopathologists second, and therefore, are as human as everybody else – including those judges that decide the fate of prisoners presenting to Israeli parole boards. I have created the somewhat cheesy term, “skinnection”, to emphasize that some of my blog postings will explore the connection between the mass of psychological data out there and pathologists who focus on the skin. F

Dr. Hafeez Diwan

Dr. Hafeez Diwan

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