Undescended testis with

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Here is the transcribed text from the notebook:

Left side:

To I & D done for (L) canal lymphadenitis

Right side:

Dental op for Dental Car.

Decoded:

I & D = Incision and Drainage (a surgical procedure to drain an abscess or infected fluid)
(L) = Left
Canal lymphadenitis = Inflammation/infection of the lymph nodes in the (left) canal region
Dental op = Dental operation/procedure
Dental Car. = Dental Caries (tooth decay)

The context (SRM Pharmacy form in the background) suggests this is a clinical/medical note from a hospital or dental setting, recording that an I&D procedure was done for left canal lymphadenitis, and a dental operation was planned/done for dental caries.

Undescended testis with

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...associated complications (malignancy, infertility, torsion)
...management/orchidopexy
...differential diagnosis
...pathology/histology
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I want a type of undescended testis

The types of undescended testis (cryptorchidism) are based on the position/location of the testis. Let me pull the detailed classification from the medical textbooks.

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Now let me also fetch the diagram of ectopic testis sites for visual clarity:

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Here is a complete classification of undescended testis (cryptorchidism):

Types of Undescended Testis

Broadly, the testis absent from the scrotum is classified into 3 main types:

1. True Undescended Testis (Incomplete Descent / Cryptorchidism)

The testis is arrested at any point along its normal path of descent - from the retroperitoneum down to the scrotum. Positions (in order from highest to lowest):

Position	Location
Abdominal	Within the abdominal cavity (near kidney)
At internal ring	At the internal inguinal ring
Inguinal canal	Inside the inguinal canal (most common palpable site)
At external ring	At the external inguinal ring
High scrotal	Upper part of the scrotum but not fully descended

The undescended testis is always smaller and less developed than its fellow in the scrotum. It may be associated with an inguinal hernia.

2. Ectopic Testis

The testis has deviated from its normal path of descent after passing through the external ring. This occurs when one of the accessory tails of the gubernaculum becomes stronger than the scrotal tail, pulling the testis to an abnormal site.

Sites of ectopic testis (based on Lockwood's 5 tails of the gubernaculum):

Tail	Site
Scrotal (normal)	Scrotum - normal descent
Superficial inguinal	Superficial inguinal pouch - MOST COMMON ectopic site
Pubic	Root of the penis (pubic type)
Femoral	Upper & medial femoral triangle (rare)
Perineal	Perineum

An ectopic testis is usually well-developed, unlike a true undescended testis.

Five tails of gubernaculum testis (Lockwood):

3. Retractile Testis

Not a true undescended testis - caused by strong cremasteric muscle contraction pulling the testis up from the scrotum into the superficial inguinal pouch.
The testis is well-developed, the scrotum is normally developed, and crucially, the testis can be manually milked down to the bottom of the scrotum.
Diagnosed using the "Chair test" (Orr's test): the child sits with knees flexed tightly to the chest - this increases intra-abdominal pressure and brings the retractile testis down into the scrotum.
Requires yearly follow-up as 2-50% risk of becoming an acquired undescended testis.

Key Distinguishing Points

Feature	True Undescended	Ectopic	Retractile
Path	Along normal route, arrested	Deviated from normal path	Normal but pulled back up
Testis size	Small, underdeveloped	Well-developed	Well-developed
Scrotum	Underdeveloped	Empty on that side	Normal
Can be brought down manually?	No	No	Yes

Source: S Das - A Manual on Clinical Surgery, 13th Edition; Bailey and Love's Short Practice of Surgery, 28th Edition.

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